HEADER    RNA                                     11-OCT-19   6T3K              
TITLE     STRUCTURE OF OCEANOBACILLUS IHEYENSIS GROUP II INTRON G-MUTANT        
TITLE    2 (C289G/C358G/G385C) IN THE PRESENCE OF K+, MG2+ AND 5'-EXON          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: GROUP IIC INTRON RIBOZYME;                                 
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: DOMAINS 1-5;                                               
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES;                                                       
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: GROUP IIC INTRON RIBOZYME;                                 
COMPND   9 CHAIN: B;                                                            
COMPND  10 FRAGMENT: 5'-EXON;                                                   
COMPND  11 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 ORGANISM_SCIENTIFIC: OCEANOBACILLUS IHEYENSIS;                       
SOURCE   4 ORGANISM_TAXID: 182710;                                              
SOURCE   5 OTHER_DETAILS: IN VITRO TRANSCRIPTION SYSTEM;                        
SOURCE   6 MOL_ID: 2;                                                           
SOURCE   7 SYNTHETIC: YES;                                                      
SOURCE   8 ORGANISM_SCIENTIFIC: OCEANOBACILLUS IHEYENSIS;                       
SOURCE   9 ORGANISM_TAXID: 182710;                                              
SOURCE  10 OTHER_DETAILS: IN VITRO TRANSCRIPTION SYSTEM                         
KEYWDS    RIBOZYME, SELF-SPLICING, RETROTRANSPOSITION, SPLICEOSOME, RNA         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.MARCIA,A.M.PYLE                                                     
REVDAT   3   24-JAN-24 6T3K    1       LINK                                     
REVDAT   2   17-JUN-20 6T3K    1       JRNL                                     
REVDAT   1   13-MAY-20 6T3K    0                                                
JRNL        AUTH   J.MANIGRASSO,I.CHILLON,V.GENNA,P.VIDOSSICH,S.SOMAROWTHU,     
JRNL        AUTH 2 A.M.PYLE,M.DE VIVO,M.MARCIA                                  
JRNL        TITL   VISUALIZING GROUP II INTRON DYNAMICS BETWEEN THE FIRST AND   
JRNL        TITL 2 SECOND STEPS OF SPLICING.                                    
JRNL        REF    NAT COMMUN                    V.  11  2837 2020              
JRNL        REFN                   ESSN 2041-1723                               
JRNL        PMID   32503992                                                     
JRNL        DOI    10.1038/S41467-020-16741-4                                   
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.44 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.7.0032                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : NULL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.44                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.46                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 89.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 22183                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.212                           
REMARK   3   R VALUE            (WORKING SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.257                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1201                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 3.44                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 3.53                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1491                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 83.12                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.5630                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 80                           
REMARK   3   BIN FREE R VALUE                    : 0.5960                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 8478                                    
REMARK   3   HETEROGEN ATOMS          : 101                                     
REMARK   3   SOLVENT ATOMS            : 38                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 128.3                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 3.66000                                              
REMARK   3    B22 (A**2) : -2.94000                                             
REMARK   3    B33 (A**2) : -0.73000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.582         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.497         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 70.519        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.943                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.924                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  9552 ; 0.009 ; 0.011       
REMARK   3   BOND LENGTHS OTHERS               (A):  3924 ; 0.003 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES): 14877 ; 1.894 ; 1.281       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  9526 ; 1.677 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  1576 ; 0.118 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4788 ; 0.010 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  2130 ; 0.002 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 1                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 2                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A     1        A   390                          
REMARK   3    RESIDUE RANGE :   B    -4        B     0                          
REMARK   3    ORIGIN FOR THE GROUP (A):  23.8480   9.1240 475.5600              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3585 T22:   0.2741                                     
REMARK   3      T33:   0.2319 T12:  -0.0463                                     
REMARK   3      T13:   0.0469 T23:   0.0653                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.6536 L22:   2.7145                                     
REMARK   3      L33:   1.7158 L12:  -0.9155                                     
REMARK   3      L13:  -0.7453 L23:   1.0415                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.1941 S12:  -0.2650 S13:  -0.1528                       
REMARK   3      S21:   0.7427 S22:   0.1074 S23:   0.1763                       
REMARK   3      S31:   0.2599 S32:   0.1096 S33:   0.0866                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: U VALUES : WITH TLS ADDED HYDROGENS       
REMARK   3  HAVE BEEN ADDED IN THE RIDING POSITIONS                             
REMARK   4                                                                      
REMARK   4 6T3K COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 11-OCT-19.                  
REMARK 100 THE DEPOSITION ID IS D_1292104788.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-JUL-13                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 24-ID-C                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97950                            
REMARK 200  MONOCHROMATOR                  : SINGLE CRYSTAL SI(220) SIDE        
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 6M-F               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS VERSION MARCH 30, 2013         
REMARK 200  DATA SCALING SOFTWARE          : SCALA 3.3.20                       
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 24334                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.440                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 48.460                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 94.1                               
REMARK 200  DATA REDUNDANCY                : 3.300                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 17.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.44                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.63                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 95.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 1.50800                            
REMARK 200  R SYM FOR SHELL            (I) : 1.50800                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 0.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: 4FAR                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 66.60                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.68                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 50 MM NA-HEPES PH 7.0, 100 MM            
REMARK 280  MAGNESIUM ACETATE, 150 MM POTASSIUM CHLORIDE, 10 MM LITHIUM         
REMARK 280  CHLORIDE, 4% PEG 8000, VAPOR DIFFUSION, HANGING DROP,               
REMARK 280  TEMPERATURE 303K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       44.32950            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000      112.48900            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       47.72650            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000      112.48900            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       44.32950            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       47.72650            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 9450 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 56780 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -267.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465       G B    -7                                                      
REMARK 465       G B    -6                                                      
REMARK 465       G B    -5                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470       G A 390    O5'  C5'  C4'  O4'  C3'  O3'  C2'                   
REMARK 470       G A 390    O2'  C1'  N9   C8   N7   C5   C6                    
REMARK 470       G A 390    O6   N1   C2   N2   N3   C4                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   OP1    G A   239     O    HOH A   501              1.76            
REMARK 500   N2     G A   289     N7     G A   358              1.80            
REMARK 500   OP1    G A   111     O    HOH A   502              2.10            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O2'    C A   279     O2'    G A   336     3559     1.93            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500      G A   1   P       G A   1   OP3    -0.118                       
REMARK 500      A A  49   O3'     A A  50   P      -0.087                       
REMARK 500      A A  56   O3'     A A  57   P      -0.091                       
REMARK 500      A A 171   O3'     U A 172   P      -0.074                       
REMARK 500      U A 271   O3'     C A 272   P      -0.074                       
REMARK 500      U A 273   O3'     G A 274   P      -0.092                       
REMARK 500      G A 335   O3'     G A 336   P      -0.082                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500      G A  16   O5' -  P   -  OP2 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500      G A  34   O5' -  P   -  OP1 ANGL. DEV. =  -6.1 DEGREES          
REMARK 500      G A  34   O5' -  P   -  OP2 ANGL. DEV. =  10.3 DEGREES          
REMARK 500      U A  47   O5' -  P   -  OP1 ANGL. DEV. =  -7.5 DEGREES          
REMARK 500      A A  50   O5' -  P   -  OP2 ANGL. DEV. =  -5.4 DEGREES          
REMARK 500      C A  62   O5' -  P   -  OP1 ANGL. DEV. =  -7.4 DEGREES          
REMARK 500      U A  65   O5' -  P   -  OP1 ANGL. DEV. =  -7.3 DEGREES          
REMARK 500      U A  82   O5' -  P   -  OP1 ANGL. DEV. =   8.3 DEGREES          
REMARK 500      G A  89   O5' -  P   -  OP2 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500      U A 101   C2' -  C3' -  O3' ANGL. DEV. =  10.0 DEGREES          
REMARK 500      A A 106   O5' -  P   -  OP2 ANGL. DEV. =  -8.9 DEGREES          
REMARK 500      G A 111   O5' -  P   -  OP2 ANGL. DEV. =  -6.3 DEGREES          
REMARK 500      C A 112   O5' -  P   -  OP2 ANGL. DEV. =  -9.4 DEGREES          
REMARK 500      A A 120   P   -  O5' -  C5' ANGL. DEV. = -10.2 DEGREES          
REMARK 500      A A 171   O5' -  P   -  OP1 ANGL. DEV. =  -7.7 DEGREES          
REMARK 500      A A 174   C5' -  C4' -  O4' ANGL. DEV. =   6.2 DEGREES          
REMARK 500      A A 191   O5' -  P   -  OP1 ANGL. DEV. =   7.3 DEGREES          
REMARK 500      U A 202   O5' -  P   -  OP1 ANGL. DEV. =   7.2 DEGREES          
REMARK 500      A A 233   O5' -  P   -  OP2 ANGL. DEV. =  -7.0 DEGREES          
REMARK 500      U A 285   O5' -  P   -  OP2 ANGL. DEV. =  -6.2 DEGREES          
REMARK 500      A A 287   C2' -  C3' -  O3' ANGL. DEV. =  11.7 DEGREES          
REMARK 500      G A 336   O5' -  P   -  OP2 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500      C A 360   O5' -  P   -  OP2 ANGL. DEV. =  -8.0 DEGREES          
REMARK 500      C A 367   O5' -  P   -  OP1 ANGL. DEV. =  11.1 DEGREES          
REMARK 500      C A 367   O5' -  P   -  OP2 ANGL. DEV. =  -8.5 DEGREES          
REMARK 500      G A 374   O5' -  P   -  OP1 ANGL. DEV. =  -7.2 DEGREES          
REMARK 500      A A 376   O5' -  P   -  OP1 ANGL. DEV. =  -6.4 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     EPE A  444                                                       
REMARK 610     EPE A  445                                                       
REMARK 610     EPE A  446                                                       
REMARK 610     EPE A  447                                                       
REMARK 610     EPE A  448                                                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 435   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A   1   OP3                                                    
REMARK 620 2   U A   4   O4  158.5                                              
REMARK 620 3   G A   5   O6  135.0  51.0                                        
REMARK 620 4   A A 376   OP2 106.8  53.2  68.3                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 430   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   U A   4   O4                                                     
REMARK 620 2   G A 107   O6   75.0                                              
REMARK 620 3   U A 375   O3' 103.5 102.2                                        
REMARK 620 4   U A 375   O2' 134.0  74.3  52.1                                  
REMARK 620 5   A A 376   OP2  59.5  83.0  44.7  83.4                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 436   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A  32   O2'                                                    
REMARK 620 2   G A  34   O6   59.3                                              
REMARK 620 3   A A  50   O2'  89.8  80.3                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 414  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   U A  66   OP2                                                    
REMARK 620 2   A A  67   OP1  91.9                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 420  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A  67   OP2                                                    
REMARK 620 2   G A  68   N7   74.3                                              
REMARK 620 3   G A  68   O6  140.5  68.4                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 408  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 107   OP1                                                    
REMARK 620 2 HOH A 504   O    57.5                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 410  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C A 119   OP1                                                    
REMARK 620 2   G A 239   OP1 120.5                                              
REMARK 620 3 HOH A 501   O    70.0  50.8                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 421  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A 154   OP2                                                    
REMARK 620 2   G A 155   N7   62.2                                              
REMARK 620 3 HOH A 507   O   120.7 136.7                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 416  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A 181   OP2                                                    
REMARK 620 2   A A 223   OP1  84.0                                              
REMARK 620 3 HOH A 537   O   101.2 116.5                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 419  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A 184   OP1                                                    
REMARK 620 2 HOH A 514   O    62.8                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 411  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A 186   OP2                                                    
REMARK 620 2 HOH A 518   O    88.8                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 441   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   U A 256   O4                                                     
REMARK 620 2 HOH A 506   O   104.1                                              
REMARK 620 3 HOH A 526   O   151.4  94.4                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 425   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 266   O6                                                     
REMARK 620 2 HOH A 509   O    45.9                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 442   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 269   OP2                                                    
REMARK 620 2 HOH A 515   O    65.1                                              
REMARK 620 3 HOH A 529   O   113.6 109.3                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 443   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 275   O6                                                     
REMARK 620 2 HOH A 516   O    59.4                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 437   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 288   O6                                                     
REMARK 620 2   G A 358   OP2  91.3                                              
REMARK 620 3   G A 359   OP2 133.3  75.5                                        
REMARK 620 4   G A 359   O5'  95.9 102.3  46.4                                  
REMARK 620 5   C A 377   OP1 166.0  84.9  58.6  98.1                            
REMARK 620 6   C A 377   O5' 125.8 142.8  79.0  78.1  58.6                      
REMARK 620 7   C A 377   O4'  63.3 153.4 115.1  74.2 121.7  63.3                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 440   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 320   OP2                                                    
REMARK 620 2   G A 320   O6   91.6                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 406  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 325   O6                                                     
REMARK 620 2 HOH A 503   O    48.7                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 423  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A 355   OP2                                                    
REMARK 620 2   A A 356   OP2  94.9                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 401  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 358   OP1                                                    
REMARK 620 2   G A 359   OP2  81.4                                              
REMARK 620 3   C A 377   OP1  70.2  76.1                                        
REMARK 620 4 HOH B 101   O   149.7 100.9  81.0                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 429  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 359   OP1                                                    
REMARK 620 2   U A 375   OP1 175.5                                              
REMARK 620 3   C A 377   OP2 121.8  62.2                                        
REMARK 620 4   U B   0   O3' 132.0  50.7  64.6                                  
REMARK 620 5   U B   0   O2'  97.3  80.9 126.4  62.0                            
REMARK 620 6 HOH B 101   O    86.7  97.4  61.3  52.9  89.0                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 409  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C A 372   OP2                                                    
REMARK 620 2 HOH A 510   O    64.7                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 424  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH A 519   O                                                      
REMARK 620 2 HOH A 525   O    64.8                                              
REMARK 620 N                    1                                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 401                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 402                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 403                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 404                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 405                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 406                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 407                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 408                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 409                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 410                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 411                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 412                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 413                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 414                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 415                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 416                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 417                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AD9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 418                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 419                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 420                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 421                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 422                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 423                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 424                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 425                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 426                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AE9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 427                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 428                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 429                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 430                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 431                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 432                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 433                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 434                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 435                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AF9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 436                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 437                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 438                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 439                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 440                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 441                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 442                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue K A 443                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue EPE A 444                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AG9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue EPE A 445                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AH1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue EPE A 446                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AH2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue EPE A 447                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AH3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue EPE A 448                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AH4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue SPM A 449                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AH5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue SPM A 450                 
DBREF  6T3K A    1   390  PDB    6T3K     6T3K             1    390             
DBREF  6T3K B   -7     0  PDB    6T3K     6T3K            -7      0             
SEQRES   1 A  390    G   U   G   U   G   C   C   C   G   G   C   A   U          
SEQRES   2 A  390    G   G   G   U   G   C   A   G   U   C   U   A   U          
SEQRES   3 A  390    A   G   G   G   U   G   A   G   A   G   U   C   C          
SEQRES   4 A  390    C   G   A   A   C   U   G   U   G   A   A   G   G          
SEQRES   5 A  390    C   A   G   A   A   G   U   A   A   C   A   G   U          
SEQRES   6 A  390    U   A   G   C   C   U   A   A   C   G   C   A   A          
SEQRES   7 A  390    G   G   G   U   G   U   C   C   G   U   G   G   C          
SEQRES   8 A  390    G   A   C   A   U   G   G   A   A   U   C   U   G          
SEQRES   9 A  390    A   A   G   G   A   A   G   C   G   G   A   C   G          
SEQRES  10 A  390    G   C   A   A   A   C   C   U   U   C   G   G   U          
SEQRES  11 A  390    C   U   G   A   G   G   A   A   C   A   C   G   A          
SEQRES  12 A  390    A   C   U   U   C   A   U   A   U   G   A   G   G          
SEQRES  13 A  390    C   U   A   G   G   U   A   U   C   A   A   U   G          
SEQRES  14 A  390    G   A   U   G   A   G   U   U   U   G   C   A   U          
SEQRES  15 A  390    A   A   C   A   A   A   A   C   A   A   A   G   U          
SEQRES  16 A  390    C   C   U   U   U   C   U   G   C   C   A   A   A          
SEQRES  17 A  390    G   U   U   G   G   U   A   C   A   G   A   G   U          
SEQRES  18 A  390    A   A   A   U   G   A   A   G   C   A   G   A   U          
SEQRES  19 A  390    U   G   A   U   G   A   A   G   G   G   A   A   A          
SEQRES  20 A  390    G   A   C   U   G   C   A   U   U   C   U   U   A          
SEQRES  21 A  390    C   C   C   G   G   G   G   A   G   G   U   C   U          
SEQRES  22 A  390    G   G   A   A   A   C   A   G   A   A   G   U   C          
SEQRES  23 A  390    A   G   G   A   G   A   A   G   U   C   A   U   A          
SEQRES  24 A  390    G   U   A   C   C   C   U   G   U   U   C   G   C          
SEQRES  25 A  390    A   G   G   G   G   A   A   G   G   A   C   G   G          
SEQRES  26 A  390    A   A   C   A   A   G   U   A   U   G   G   C   G          
SEQRES  27 A  390    U   U   C   G   C   G   C   C   U   A   A   G   C          
SEQRES  28 A  390    U   U   G   A   A   C   G   G   C   C   G   U   A          
SEQRES  29 A  390    U   A   C   C   G   A   A   C   G   G   U   A   C          
SEQRES  30 A  390    G   U   A   C   G   G   U   C   G   U   G   U   G          
SEQRES   1 B    8    G   G   G   G   U   U   A   U                              
HET     MG  A 401       1                                                       
HET     MG  A 402       1                                                       
HET     MG  A 403       1                                                       
HET     MG  A 404       1                                                       
HET     MG  A 405       1                                                       
HET     MG  A 406       1                                                       
HET     MG  A 407       1                                                       
HET     MG  A 408       1                                                       
HET     MG  A 409       1                                                       
HET     MG  A 410       1                                                       
HET     MG  A 411       1                                                       
HET     MG  A 412       1                                                       
HET     MG  A 413       1                                                       
HET     MG  A 414       1                                                       
HET     MG  A 415       1                                                       
HET     MG  A 416       1                                                       
HET     MG  A 417       1                                                       
HET     MG  A 418       1                                                       
HET     MG  A 419       1                                                       
HET     MG  A 420       1                                                       
HET     MG  A 421       1                                                       
HET     MG  A 422       1                                                       
HET     MG  A 423       1                                                       
HET     MG  A 424       1                                                       
HET      K  A 425       1                                                       
HET     MG  A 426       1                                                       
HET     MG  A 427       1                                                       
HET     MG  A 428       1                                                       
HET     MG  A 429       1                                                       
HET      K  A 430       1                                                       
HET      K  A 431       1                                                       
HET      K  A 432       1                                                       
HET      K  A 433       1                                                       
HET      K  A 434       1                                                       
HET      K  A 435       1                                                       
HET      K  A 436       1                                                       
HET      K  A 437       1                                                       
HET      K  A 438       1                                                       
HET      K  A 439       1                                                       
HET      K  A 440       1                                                       
HET      K  A 441       1                                                       
HET      K  A 442       1                                                       
HET      K  A 443       1                                                       
HET    EPE  A 444       5                                                       
HET    EPE  A 445      12                                                       
HET    EPE  A 446       4                                                       
HET    EPE  A 447       4                                                       
HET    EPE  A 448       5                                                       
HET    SPM  A 449      14                                                       
HET    SPM  A 450      14                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM       K POTASSIUM ION                                                    
HETNAM     EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID              
HETNAM     SPM SPERMINE                                                         
HETSYN     EPE HEPES                                                            
FORMUL   3   MG    28(MG 2+)                                                    
FORMUL  27    K    15(K 1+)                                                     
FORMUL  46  EPE    5(C8 H18 N2 O4 S)                                            
FORMUL  51  SPM    2(C10 H26 N4)                                                
FORMUL  53  HOH   *38(H2 O)                                                     
LINK         OP3   G A   1                 K     K A 435     1555   1555  3.33  
LINK         O4    U A   4                 K     K A 430     1555   1555  3.06  
LINK         O4    U A   4                 K     K A 435     1555   1555  3.45  
LINK         O6    G A   5                 K     K A 435     1555   1555  3.32  
LINK         OP1   C A   6                MG    MG A 417     1555   1555  2.76  
LINK         OP2   U A  26                MG    MG A 405     1555   1555  2.44  
LINK         O6    G A  28                 K     K A 432     1555   1555  2.54  
LINK         O2'   G A  32                 K     K A 436     1555   1555  3.03  
LINK         O6    G A  34                 K     K A 436     1555   1555  3.28  
LINK         O2'   A A  50                 K     K A 436     1555   4549  2.56  
LINK         OP2   U A  66                MG    MG A 414     1555   1555  2.38  
LINK         OP1   A A  67                MG    MG A 414     1555   1555  2.34  
LINK         OP2   A A  67                MG    MG A 420     1555   1555  2.29  
LINK         N7    G A  68                MG    MG A 420     1555   1555  2.36  
LINK         O6    G A  68                MG    MG A 420     1555   1555  2.98  
LINK         O6    G A  80                 K     K A 433     1555   1555  3.39  
LINK         OP1   A A 105                MG    MG A 412     1555   1555  2.55  
LINK         OP1   G A 107                MG    MG A 408     1555   1555  2.34  
LINK         O6    G A 107                 K     K A 430     1555   1555  2.98  
LINK         OP1   C A 119                MG    MG A 410     1555   1555  2.65  
LINK         OP1   A A 120                MG    MG A 428     1555   1555  2.44  
LINK         OP2   G A 136                MG    MG A 413     1555   1555  2.20  
LINK         N7    G A 142                MG    MG A 427     1555   1555  2.30  
LINK         OP2   A A 154                MG    MG A 421     1555   1555  2.02  
LINK         N7    G A 155                MG    MG A 421     1555   1555  2.54  
LINK         OP2   A A 181                MG    MG A 416     1555   1555  2.82  
LINK         OP1   A A 184                MG    MG A 419     1555   1555  2.56  
LINK         OP2   A A 186                MG    MG A 411     1555   1555  2.18  
LINK         OP1   A A 223                MG    MG A 416     1555   1555  2.70  
LINK         OP1   G A 239                MG    MG A 410     1555   1555  2.07  
LINK         O4    U A 256                 K     K A 441     1555   1555  3.15  
LINK         O6    G A 264                 K     K A 434     1555   1555  3.06  
LINK         O6    G A 266                 K     K A 425     1555   1555  3.32  
LINK         OP2   G A 269                 K     K A 442     1555   1555  2.25  
LINK         O6    G A 275                 K     K A 431     1555   1555  3.09  
LINK         O6    G A 275                 K     K A 443     1555   1555  2.76  
LINK         OP2   A A 283                MG    MG A 426     1555   1555  2.40  
LINK         OP1   U A 285                MG    MG A 422     1555   1555  2.26  
LINK         O6    G A 288                 K     K A 437     1555   1555  2.87  
LINK         OP2   G A 320                 K     K A 440     1555   1555  2.75  
LINK         O6    G A 320                 K     K A 440     1555   1555  3.33  
LINK         O6    G A 325                MG    MG A 406     1555   1555  2.57  
LINK         O4    U A 332                 K     K A 438     1555   1555  3.39  
LINK         OP2   A A 355                MG    MG A 423     1555   1555  2.14  
LINK         OP2   A A 356                MG    MG A 423     1555   1555  2.60  
LINK         OP1   G A 358                MG    MG A 401     1555   1555  2.06  
LINK         OP2   G A 358                 K     K A 437     1555   1555  2.93  
LINK         OP2   G A 359                MG    MG A 401     1555   1555  2.21  
LINK         OP1   G A 359                MG    MG A 429     1555   1555  2.68  
LINK         OP2   G A 359                 K     K A 437     1555   1555  3.26  
LINK         O5'   G A 359                 K     K A 437     1555   1555  3.12  
LINK         OP2   C A 372                MG    MG A 409     1555   1555  2.54  
LINK         OP1   U A 375                MG    MG A 429     1555   1555  2.81  
LINK         O3'   U A 375                 K     K A 430     1555   1555  3.44  
LINK         O2'   U A 375                 K     K A 430     1555   1555  3.03  
LINK         OP2   A A 376                 K     K A 430     1555   1555  3.07  
LINK         OP2   A A 376                 K     K A 435     1555   1555  3.33  
LINK         OP1   C A 377                MG    MG A 401     1555   1555  2.55  
LINK         OP2   C A 377                MG    MG A 429     1555   1555  2.36  
LINK         OP1   C A 377                 K     K A 437     1555   1555  2.66  
LINK         O5'   C A 377                 K     K A 437     1555   1555  2.36  
LINK         O4'   C A 377                 K     K A 437     1555   1555  3.04  
LINK        MG    MG A 401                 O   HOH B 101     1555   1555  2.08  
LINK        MG    MG A 404                 O   HOH A 505     1555   1555  2.25  
LINK        MG    MG A 406                 O   HOH A 503     1555   1555  2.87  
LINK        MG    MG A 407                 O   HOH A 521     1555   1555  2.08  
LINK        MG    MG A 408                 O   HOH A 504     1555   1555  2.43  
LINK        MG    MG A 409                 O   HOH A 510     1555   1555  2.18  
LINK        MG    MG A 410                 O   HOH A 501     1555   1555  2.04  
LINK        MG    MG A 411                 O   HOH A 518     1555   1555  1.82  
LINK        MG    MG A 415                 O   HOH A 532     1555   1555  2.23  
LINK        MG    MG A 416                 O   HOH A 537     1555   1555  2.91  
LINK        MG    MG A 419                 O   HOH A 514     1555   1555  2.47  
LINK        MG    MG A 421                 O   HOH A 507     1555   1555  2.29  
LINK        MG    MG A 424                 O   HOH A 519     1555   1555  2.12  
LINK        MG    MG A 424                 O   HOH A 525     1555   1555  2.29  
LINK         K     K A 425                 O   HOH A 509     1555   1555  3.13  
LINK        MG    MG A 429                 O3'   U B   0     1555   1555  2.82  
LINK        MG    MG A 429                 O2'   U B   0     1555   1555  2.41  
LINK        MG    MG A 429                 O   HOH B 101     1555   1555  2.73  
LINK         K     K A 441                 O   HOH A 506     1555   1555  2.41  
LINK         K     K A 441                 O   HOH A 526     1555   1555  2.96  
LINK         K     K A 442                 O   HOH A 515     1555   1555  2.66  
LINK         K     K A 442                 O   HOH A 529     1555   1555  2.14  
LINK         K     K A 443                 O   HOH A 516     1555   1555  2.70  
SITE     1 AC1  4   G A 358    G A 359    C A 377  HOH B 101                    
SITE     1 AC2  1   U A   4                                                     
SITE     1 AC3  1   G A 362                                                     
SITE     1 AC4  1 HOH A 505                                                     
SITE     1 AC5  2   U A  26    U A  65                                          
SITE     1 AC6  4   C A 323    G A 324    G A 325  HOH A 503                    
SITE     1 AC7  2   U A  59  HOH A 521                                          
SITE     1 AC8  4   A A 105    A A 106    G A 107  HOH A 504                    
SITE     1 AC9  2   C A 372  HOH A 510                                          
SITE     1 AD1  4   C A 119    U A 238    G A 239  HOH A 501                    
SITE     1 AD2  2   A A 186  HOH A 518                                          
SITE     1 AD3  1   A A 105                                                     
SITE     1 AD4  2   G A 136    U A 225                                          
SITE     1 AD5  2   U A  66    A A  67                                          
SITE     1 AD6  2   G A 284  HOH A 532                                          
SITE     1 AD7  4   A A 181    A A 222    A A 223  HOH A 537                    
SITE     1 AD8  2   C A   6    A A 260                                          
SITE     1 AD9  1   G A 169                                                     
SITE     1 AE1  3   A A 184    A A 371  HOH A 514                               
SITE     1 AE2  2   A A  67    G A  68                                          
SITE     1 AE3  3   A A 154    G A 155  HOH A 507                               
SITE     1 AE4  1   U A 285                                                     
SITE     1 AE5  3   G A 289    A A 355    A A 356                               
SITE     1 AE6  2 HOH A 519  HOH A 525                                          
SITE     1 AE7  1   G A 266                                                     
SITE     1 AE8  1   A A 283                                                     
SITE     1 AE9  1   G A 142                                                     
SITE     1 AF1  1   A A 120                                                     
SITE     1 AF2  5   G A 359    U A 375    C A 377    U B   0                    
SITE     2 AF2  5 HOH B 101                                                     
SITE     1 AF3  4   U A   4    G A 107    U A 375    A A 376                    
SITE     1 AF4  1   G A 275                                                     
SITE     1 AF5  1   G A  28                                                     
SITE     1 AF6  1   G A  80                                                     
SITE     1 AF7  1   G A 264                                                     
SITE     1 AF8  4   G A   1    U A   4    G A   5    A A 376                    
SITE     1 AF9  2   G A  32    G A  34                                          
SITE     1 AG1  5   G A 288    G A 358    G A 359    A A 376                    
SITE     2 AG1  5   C A 377                                                     
SITE     1 AG2  2   G A 331    U A 332                                          
SITE     1 AG3  1   G A  90                                                     
SITE     1 AG4  1   G A 320                                                     
SITE     1 AG5  5   G A  15    U A 255    U A 256  HOH A 506                    
SITE     2 AG5  5 HOH A 526                                                     
SITE     1 AG6  4   A A 268    G A 269  HOH A 515  HOH A 529                    
SITE     1 AG7  3   U A 273    G A 275  HOH A 516                               
SITE     1 AG8  4   C A 112    G A 113    G A 114    A A 115                    
SITE     1 AG9  3   G A 242    G A 243    G A 244                               
SITE     1 AH1  1   G A  98                                                     
SITE     1 AH2  2   U A 103    G A 104                                          
SITE     1 AH3  3   A A 115    C A 116    G A 117                               
SITE     1 AH4  5   G A  48    G A  55    A A  56    A A  57                    
SITE     2 AH4  5   G A  58                                                     
SITE     1 AH5  4   G A  30    G A  32    A A  33    G A  34                    
CRYST1   88.659   95.453  224.978  90.00  90.00  90.00 P 21 21 21    4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.011279  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010476  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.004445        0.00000