HEADER    RNA                                     29-JAN-18   6CAB              
TITLE     RNA-DGMP COMPLEX WITH SR ION                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RNA (5'-R(*(LCC)P*(LCC)P*(LCC)P*(LCG)                      
COMPND   3 P*AP*CP*UP*UP*AP*AP*GP*UP*CP*G)-3');                                 
COMPND   4 CHAIN: A, B;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE   4 ORGANISM_TAXID: 32630                                                
KEYWDS    RNA, ACTIVATED MONOMER                                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    W.ZHANG,J.W.SZOSTAK                                                   
REVDAT   5   16-OCT-24 6CAB    1       REMARK HET    HETNAM FORMUL              
REVDAT   5 2                   1       LINK   SITE   ATOM                       
REVDAT   4   04-OCT-23 6CAB    1       LINK                                     
REVDAT   3   20-NOV-19 6CAB    1       REMARK                                   
REVDAT   2   31-OCT-18 6CAB    1       JRNL                                     
REVDAT   1   30-MAY-18 6CAB    0                                                
JRNL        AUTH   W.ZHANG,T.WALTON,L.LI,J.W.SZOSTAK                            
JRNL        TITL   CRYSTALLOGRAPHIC OBSERVATION OF NONENZYMATIC RNA PRIMER      
JRNL        TITL 2 EXTENSION.                                                   
JRNL        REF    ELIFE                         V.   7       2018              
JRNL        REFN                   ESSN 2050-084X                               
JRNL        PMID   29851379                                                     
JRNL        DOI    10.7554/ELIFE.36422                                          
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.8.0158                                      
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) : 2.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 93.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 3729                           
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) : 0.218                           
REMARK   3   R VALUE            (WORKING SET) : 0.215                           
REMARK   3   FREE R VALUE                     : 0.280                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.500                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 176                             
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) : 2.50                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.56                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 238                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 80.32                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3570                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 11                           
REMARK   3   BIN FREE R VALUE                    : 0.4010                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 598                                     
REMARK   3   HETEROGEN ATOMS          : 100                                     
REMARK   3   SOLVENT ATOMS            : 8                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 73.72                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.05000                                              
REMARK   3    B22 (A**2) : 0.05000                                              
REMARK   3    B33 (A**2) : -0.16000                                             
REMARK   3    B12 (A**2) : 0.03000                                              
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): 0.491         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.316         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.302         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 15.392        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.961                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.942                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   762 ; 0.021 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):   308 ; 0.043 ; 0.025       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1164 ; 2.668 ; 2.222       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):   772 ; 4.212 ; 3.297       
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):   142 ; 0.167 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   356 ; 0.009 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   104 ; 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):   759 ; 6.306 ; 8.141       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):   755 ; 6.125 ; 8.095       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  1158 ; 8.801 ;12.142       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  1130 ;10.495 ;78.508       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  1131 ;10.573 ;78.634       
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  : NULL                                       
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: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3   POSITIONS                                                          
REMARK   4                                                                      
REMARK   4 6CAB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-JAN-18.                  
REMARK 100 THE DEPOSITION ID IS D_1000232409.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 25-OCT-17                          
REMARK 200  TEMPERATURE           (KELVIN) : 99                                 
REMARK 200  PH                             : 7                                  
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 8.2.2                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1                                  
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MAR CCD 130 MM                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 4047                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.5                               
REMARK 200  DATA REDUNDANCY                : 4.500                              
REMARK 200  R MERGE                    (I) : 0.09600                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.59                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 82.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.44000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.960                              
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: 5DHC                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 56.30                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.80                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 10% V/V (+/-)-2-METHYL-2,4               
REMARK 280  -PENTANEDIOL, 0.040 M SODIUM CACODYLATE TRIHYDRATE PH 7.0, 0.012    
REMARK 280  M SPERMINE TETRAHYDROCHLORIDE, 0.080 M SODIUM CHLORIDE, 0.020 M     
REMARK 280  STRONTIUM CHLORIDE, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE      
REMARK 280  291K                                                                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 3 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z                                               
REMARK 290       6555   -X,-X+Y,-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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  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: 3410 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 5670 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -66.0 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 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375 SR    SR A 104  LIES ON A SPECIAL POSITION.                          
REMARK 375 SR    SR B 104  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH B 203  LIES ON A SPECIAL POSITION.                          
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    LCC A   1   C3' -  O3' -  P   ANGL. DEV. =  25.1 DEGREES          
REMARK 500    LCC A   2   O3' -  P   -  O5' ANGL. DEV. = -23.9 DEGREES          
REMARK 500    LCC A   2   C3' -  O3' -  P   ANGL. DEV. =  11.1 DEGREES          
REMARK 500    LCC A   3   O3' -  P   -  O5' ANGL. DEV. = -17.2 DEGREES          
REMARK 500    LCG A   4   O3' -  P   -  O5' ANGL. DEV. = -13.2 DEGREES          
REMARK 500      A A   5   O3' -  P   -  OP2 ANGL. DEV. =  12.1 DEGREES          
REMARK 500    LCC B   1   C3' -  O3' -  P   ANGL. DEV. =  28.2 DEGREES          
REMARK 500    LCC B   2   O3' -  P   -  O5' ANGL. DEV. =  21.4 DEGREES          
REMARK 500    LCC B   2   C3' -  O3' -  P   ANGL. DEV. =   8.5 DEGREES          
REMARK 500    LCC B   3   C3' -  O3' -  P   ANGL. DEV. =   9.3 DEGREES          
REMARK 500    LCG B   4   O3' -  P   -  O5' ANGL. DEV. =  33.5 DEGREES          
REMARK 500      A B   5   O3' -  P   -  OP1 ANGL. DEV. = -20.0 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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                              SR A 103  SR                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A  14   O6                                                     
REMARK 620 2 5GP A 101   N7   64.0                                              
REMARK 620 3 5GP A 101   O6   74.3  63.3                                        
REMARK 620 4 HOH B 201   O   148.0  84.6  86.7                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              SR A 104  SR                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 5GP A 101   O3'                                                    
REMARK 620 2 5GP A 101   O3'   0.0                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              SR B 103  SR                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH A 202   O                                                      
REMARK 620 2   G B  14   O6  136.9                                              
REMARK 620 3 5GP B 102   O6   68.6  69.1                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              SR B 104  SR                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 5GP B 102   O3'                                                    
REMARK 620 2 5GP B 102   O3'   0.0                                              
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 5GP A 101                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue 5GP A 102                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue SR A 103                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue SR A 104                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue 5GP B 101                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue 5GP B 102                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue SR B 103                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue SR B 104                  
DBREF  6CAB A    1    14  PDB    6CAB     6CAB             1     14             
DBREF  6CAB B    1    14  PDB    6CAB     6CAB             1     14             
SEQRES   1 A   14  LCC LCC LCC LCG   A   C   U   U   A   A   G   U   C          
SEQRES   2 A   14    G                                                          
SEQRES   1 B   14  LCC LCC LCC LCG   A   C   U   U   A   A   G   U   C          
SEQRES   2 B   14    G                                                          
HET    LCC  A   1      19                                                       
HET    LCC  A   2      22                                                       
HET    LCC  A   3      22                                                       
HET    LCG  A   4      24                                                       
HET    LCC  B   1      19                                                       
HET    LCC  B   2      22                                                       
HET    LCC  B   3      22                                                       
HET    LCG  B   4      24                                                       
HET    5GP  A 101      24                                                       
HET    5GP  A 102      24                                                       
HET     SR  A 103       1                                                       
HET     SR  A 104       1                                                       
HET    5GP  B 101      24                                                       
HET    5GP  B 102      24                                                       
HET     SR  B 103       1                                                       
HET     SR  B 104       1                                                       
HETNAM     LCC [(1R,3R,4R,7S)-7-HYDROXY-3-(5-METHYLCYTOSIN-1-YL)-2,5-           
HETNAM   2 LCC  DIOXABICYCLO[2.2.1]HEPT-1-YL]METHYL DIHYDROGEN                  
HETNAM   3 LCC  PHOSPHATE                                                       
HETNAM     LCG [(1R,3R,4R,7S)-7-HYDROXY-3-(GUANIN-9-YL)-2,5-                    
HETNAM   2 LCG  DIOXABICYCLO[2.2.1]HEPT-1-YL]METHYL DIHYDROGEN                  
HETNAM   3 LCG  PHOSPHATE                                                       
HETNAM     5GP GUANOSINE-5'-MONOPHOSPHATE                                       
HETNAM      SR STRONTIUM ION                                                    
FORMUL   1  LCC    6(C11 H16 N3 O8 P)                                           
FORMUL   1  LCG    2(C11 H14 N5 O8 P)                                           
FORMUL   3  5GP    4(C10 H14 N5 O8 P)                                           
FORMUL   5   SR    4(SR 2+)                                                     
FORMUL  11  HOH   *8(H2 O)                                                      
LINK         O3' LCC A   1                 P   LCC A   2     1555   1555  1.59  
LINK         O3' LCC A   2                 P   LCC A   3     1555   1555  1.64  
LINK         O3' LCC A   3                 P   LCG A   4     1555   1555  1.63  
LINK         O3' LCG A   4                 P     A A   5     1555   1555  1.64  
LINK         O3' LCC B   1                 P   LCC B   2     1555   1555  1.62  
LINK         O3' LCC B   2                 P   LCC B   3     1555   1555  1.67  
LINK         O3' LCC B   3                 P   LCG B   4     1555   1555  1.67  
LINK         O3' LCG B   4                 P     A B   5     1555   1555  1.68  
LINK         O6    G A  14                SR    SR A 103     1555   1555  2.86  
LINK         N7  5GP A 101                SR    SR A 103     1555   1555  2.93  
LINK         O6  5GP A 101                SR    SR A 103     1555   1555  2.95  
LINK         O3' 5GP A 101                SR    SR A 104     1555   1555  2.58  
LINK         O3' 5GP A 101                SR    SR A 104     1555   2545  2.55  
LINK        SR    SR A 103                 O   HOH B 201     1555   1555  2.81  
LINK         O   HOH A 202                SR    SR B 103     1555   1555  2.77  
LINK         O6    G B  14                SR    SR B 103     1555   1555  3.00  
LINK         O6  5GP B 102                SR    SR B 103     1555   1555  2.92  
LINK         O3' 5GP B 102                SR    SR B 104     1555   1555  2.38  
LINK         O3' 5GP B 102                SR    SR B 104     1555   2545  2.38  
SITE     1 AC1  4   G A  14   SR A 103   SR A 104  5GP B 101                    
SITE     1 AC2  3 HOH A 202    G B  14  5GP B 102                               
SITE     1 AC3  3   G A  14  5GP A 101  HOH B 201                               
SITE     1 AC4  1 5GP A 101                                                     
SITE     1 AC5  3   G A  14  5GP A 101  HOH B 201                               
SITE     1 AC6  4 5GP A 102    G B  14   SR B 103   SR B 104                    
SITE     1 AC7  3 HOH A 202    G B  14  5GP B 102                               
SITE     1 AC8  1 5GP B 102                                                     
CRYST1   48.707   48.707   80.580  90.00  90.00 120.00 P 3 2 1      12          
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      0.020531  0.011854  0.000000        0.00000                         
SCALE2      0.000000  0.023707  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012410        0.00000                         
HETATM    1  O5' LCC A   1      32.113   5.210  83.902  1.00 91.26           O  
HETATM    2  C5' LCC A   1      31.173   4.703  84.852  1.00 95.01           C  
HETATM    3  C4' LCC A   1      30.049   4.042  84.036  1.00 94.33           C  
HETATM    4  O4' LCC A   1      30.436   3.558  82.749  1.00 92.06           O  
HETATM    5  C1' LCC A   1      29.652   2.329  82.585  1.00 80.79           C  
HETATM    6  N1  LCC A   1      30.573   1.147  82.509  1.00 75.02           N  
HETATM    7  C6  LCC A   1      31.982   1.344  82.592  1.00 66.85           C  
HETATM    8  C5  LCC A   1      32.826   0.255  82.447  1.00 72.09           C  
HETATM    9  C5M LCC A   1      34.217   0.415  82.545  1.00 76.50           C  
HETATM   10  C4  LCC A   1      32.226  -0.987  82.197  1.00 70.54           C  
HETATM   11  N4  LCC A   1      33.002  -2.051  82.056  1.00 76.35           N  
HETATM   12  N3  LCC A   1      30.894  -1.141  82.110  1.00 64.26           N  
HETATM   13  C2  LCC A   1      30.070  -0.094  82.264  1.00 68.13           C  
HETATM   14  O2  LCC A   1      28.859  -0.303  82.179  1.00 69.79           O  
HETATM   15  C3' LCC A   1      29.597   2.788  84.703  1.00 88.63           C  
HETATM   16  C2' LCC A   1      28.670   2.398  83.692  1.00 79.47           C  
HETATM   17  O2' LCC A   1      27.830   3.626  83.553  1.00 81.58           O  
HETATM   18  O3' LCC A   1      29.037   2.793  85.816  1.00 96.15           O  
HETATM   19  C6' LCC A   1      28.723   4.829  83.838  1.00 89.89           C  
HETATM   20  O5' LCC A   2      28.341   1.557  87.106  1.00 70.76           O  
HETATM   21  C5' LCC A   2      27.176   0.986  87.484  1.00 77.67           C  
HETATM   22  C4' LCC A   2      26.513  -0.070  86.586  1.00 77.86           C  
HETATM   23  O4' LCC A   2      27.009  -0.382  85.283  1.00 68.64           O  
HETATM   24  C1' LCC A   2      26.642  -1.771  85.093  1.00 69.42           C  
HETATM   25  N1  LCC A   2      27.886  -2.564  84.990  1.00 71.77           N  
HETATM   26  C6  LCC A   2      29.110  -1.900  85.180  1.00 60.92           C  
HETATM   27  C5  LCC A   2      30.273  -2.608  85.048  1.00 66.62           C  
HETATM   28  C5M LCC A   2      31.497  -1.934  85.251  1.00 66.42           C  
HETATM   29  C4  LCC A   2      30.168  -3.968  84.728  1.00 63.65           C  
HETATM   30  N4  LCC A   2      31.278  -4.677  84.587  1.00 62.81           N  
HETATM   31  N3  LCC A   2      28.993  -4.575  84.566  1.00 66.66           N  
HETATM   32  C2  LCC A   2      27.845  -3.899  84.681  1.00 71.47           C  
HETATM   33  O2  LCC A   2      26.795  -4.533  84.474  1.00 60.44           O  
HETATM   34  C3' LCC A   2      26.587  -1.423  87.245  1.00 74.70           C  
HETATM   35  C2' LCC A   2      25.818  -2.108  86.271  1.00 74.51           C  
HETATM   36  O2' LCC A   2      24.561  -1.305  86.283  1.00 85.15           O  
HETATM   37  O3' LCC A   2      25.981  -1.440  88.477  1.00 67.95           O  
HETATM   38  C6' LCC A   2      24.973   0.150  86.436  1.00 79.48           C  
HETATM   39  P   LCC A   2      29.245   2.575  87.372  1.00 76.75           P  
HETATM   40  O1P LCC A   2      28.832   3.571  88.393  1.00 98.58           O  
HETATM   41  O2P LCC A   2      30.529   1.838  87.517  1.00 87.15           O  
HETATM   42  O5' LCC A   3      26.452  -3.274  89.843  1.00 64.13           O  
HETATM   43  C5' LCC A   3      25.118  -3.745  90.047  1.00 57.80           C  
HETATM   44  C4' LCC A   3      25.086  -5.084  89.277  1.00 67.44           C  
HETATM   45  O4' LCC A   3      25.772  -5.231  87.986  1.00 61.95           O  
HETATM   46  C1' LCC A   3      26.063  -6.640  87.966  1.00 61.38           C  
HETATM   47  N1  LCC A   3      27.498  -6.811  87.883  1.00 60.62           N  
HETATM   48  C6  LCC A   3      28.367  -5.707  88.061  1.00 63.76           C  
HETATM   49  C5  LCC A   3      29.736  -5.908  87.905  1.00 69.17           C  
HETATM   50  C5M LCC A   3      30.618  -4.852  88.083  1.00 68.67           C  
HETATM   51  C4  LCC A   3      30.176  -7.201  87.555  1.00 75.49           C  
HETATM   52  N4  LCC A   3      31.477  -7.413  87.405  1.00 68.51           N  
HETATM   53  N3  LCC A   3      29.304  -8.220  87.381  1.00 76.11           N  
HETATM   54  C2  LCC A   3      27.981  -8.027  87.527  1.00 67.16           C  
HETATM   55  O2  LCC A   3      27.253  -9.000  87.348  1.00 62.32           O  
HETATM   56  C3' LCC A   3      25.699  -6.165  90.095  1.00 68.90           C  
HETATM   57  C2' LCC A   3      25.431  -7.218  89.174  1.00 61.91           C  
HETATM   58  O2' LCC A   3      23.952  -7.100  89.064  1.00 59.38           O  
HETATM   59  O3' LCC A   3      25.038  -6.328  91.417  1.00 71.01           O  
HETATM   60  C6' LCC A   3      23.636  -5.633  89.103  1.00 63.55           C  
HETATM   61  P   LCC A   3      26.621  -1.532  89.986  1.00 69.62           P  
HETATM   62  O1P LCC A   3      25.761  -0.699  90.881  1.00 63.89           O  
HETATM   63  O2P LCC A   3      28.082  -1.193  89.934  1.00 75.84           O  
HETATM   64  P   LCG A   4      25.870  -6.487  92.808  1.00 67.06           P  
HETATM   65  OP1 LCG A   4      24.969  -6.105  93.907  1.00 72.03           O  
HETATM   66  O5' LCG A   4      26.173  -8.095  92.472  1.00 70.19           O  
HETATM   67  C5' LCG A   4      25.241  -9.113  92.931  1.00 68.69           C  
HETATM   68  C3' LCG A   4      26.936 -10.834  93.162  1.00 74.23           C  
HETATM   69  C6' LCG A   4      24.999 -11.800  92.367  1.00 95.19           C  
HETATM   70  N9  LCG A   4      28.602 -10.592  90.735  1.00 63.52           N  
HETATM   71  C8  LCG A   4      28.861  -9.275  90.745  1.00 60.61           C  
HETATM   72  C4  LCG A   4      29.652 -11.257  90.307  1.00 65.88           C  
HETATM   73  N7  LCG A   4      30.104  -9.100  90.356  1.00 66.10           N  
HETATM   74  C5  LCG A   4      30.581 -10.322  90.069  1.00 71.13           C  
HETATM   75  C6  LCG A   4      31.756 -10.690  89.612  1.00 66.66           C  
HETATM   76  C2' LCG A   4      27.333 -12.032  92.320  1.00 64.99           C  
HETATM   77  O6  LCG A   4      32.603  -9.840  89.395  1.00 67.96           O  
HETATM   78  C4' LCG A   4      25.846 -10.431  92.356  1.00 75.04           C  
HETATM   79  C1' LCG A   4      27.384 -11.348  91.025  1.00 64.66           C  
HETATM   80  C2  LCG A   4      31.037 -13.011  89.670  1.00 70.42           C  
HETATM   81  N1  LCG A   4      32.024 -12.035  89.404  1.00 69.15           N  
HETATM   82  O4' LCG A   4      26.352 -10.347  91.032  1.00 69.97           O  
HETATM   83  OP2 LCG A   4      27.168  -5.823  92.581  1.00 70.93           O  
HETATM   84  N2  LCG A   4      31.275 -14.311  89.471  1.00 61.96           N  
HETATM   85  N3  LCG A   4      29.843 -12.586  90.114  1.00 64.42           N  
HETATM   86  O2' LCG A   4      26.168 -12.846  92.399  1.00 71.09           O  
HETATM   87  O3' LCG A   4      26.345 -11.210  94.435  1.00 65.81           O