HEADER    DNA                                     03-JUL-12   4FXM              
TITLE     CRYSTAL STRUCTURE OF THE COMPLEX OF A HUMAN TELOMERIC REPEAT G-       
TITLE    2 QUADRUPLEX AND N-METHYL MESOPORPHYRIN IX (P21212)                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA (5'-                                                   
COMPND   3 D(*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*G)-
COMPND   4 3');                                                                 
COMPND   5 CHAIN: A;                                                            
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 OTHER_DETAILS: HUMAN TELOMERIC REPEAT SEQUENCE, TEL22                
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   4 ORGANISM_COMMON: HUMAN;                                              
SOURCE   5 ORGANISM_TAXID: 9606;                                                
SOURCE   6 OTHER_DETAILS: THIS SEQUENCE OCCURS NATURALLY IN HUMANS.             
KEYWDS    PARALLEL QUADRUPLEX, N-METHYL MESOPORPHYRIN IX, DNA                   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.M.NICOLUDIS,S.T.MILLER,P.JEFFREY,T.J.LAWTON,A.C.ROSENZWEIG,         
AUTHOR   2 L.A.YATSUNYK                                                         
REVDAT   3   13-SEP-23 4FXM    1       REMARK LINK                              
REVDAT   2   02-JAN-13 4FXM    1       JRNL                                     
REVDAT   1   26-DEC-12 4FXM    0                                                
JRNL        AUTH   J.M.NICOLUDIS,S.T.MILLER,P.D.JEFFREY,S.P.BARRETT,P.R.RABLEN, 
JRNL        AUTH 2 T.J.LAWTON,L.A.YATSUNYK                                      
JRNL        TITL   OPTIMIZED END-STACKING PROVIDES SPECIFICITY OF N-METHYL      
JRNL        TITL 2 MESOPORPHYRIN IX FOR HUMAN TELOMERIC G-QUADRUPLEX DNA.       
JRNL        REF    J.AM.CHEM.SOC.                V. 134 20446 2012              
JRNL        REFN                   ISSN 0002-7863                               
JRNL        PMID   23181361                                                     
JRNL        DOI    10.1021/JA3088746                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.65 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.6.0117                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.65                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 42.38                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 10820                          
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) : 0.224                           
REMARK   3   R VALUE            (WORKING SET) : 0.222                           
REMARK   3   FREE R VALUE                     : 0.262                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 544                             
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) : 1.65                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.69                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 714                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.34                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3470                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 34                           
REMARK   3   BIN FREE R VALUE                    : 0.3050                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 465                                     
REMARK   3   HETEROGEN ATOMS          : 46                                      
REMARK   3   SOLVENT ATOMS            : 53                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 34.10                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.02000                                              
REMARK   3    B22 (A**2) : -0.02000                                             
REMARK   3    B33 (A**2) : 0.00000                                              
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): 0.096         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.101         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.064         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.871         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.958                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.947                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   571 ; 0.020 ; 0.011       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):   882 ; 3.668 ; 1.463       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
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):    67 ; 0.420 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   296 ; 0.026 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
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  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
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 : REFINED INDIVIDUALLY           
REMARK   4                                                                      
REMARK   4 4FXM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-JUL-12.                  
REMARK 100 THE DEPOSITION ID IS D_1000073480.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 24-APR-12                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.2                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X29A                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0750                             
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL MONOCHROMETER       
REMARK 200  OPTICS                         : CRYOGENICALLY COOLED DOUBLE        
REMARK 200                                   CRYSTAL MONOCHROMETER WITH         
REMARK 200                                   HORIZONTAL FOCUSING SAGITTAL       
REMARK 200                                   BEND SECOND MONO CRYSTAL WITH 4:   
REMARK 200                                   1 MAGNIFICATION RATIO AND          
REMARK 200                                   VERTICALLY FOCUSING MIRROR.        
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 11364                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.650                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 42.380                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 6.300                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 2.8000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.65                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.74                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 6.30                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.46200                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.800                              
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: PDB ENTRY 3T5E                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 61.95                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.23                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 15% PEG 400, 0.4M AMMONIUM SULFATE,      
REMARK 280  0.05M LITHIUM CACODYLATE, 0.05M POTASSIUM CHLORIDE, 0.01M           
REMARK 280  CALCIUM CHLORIDE, , PH 7.2, VAPOR DIFFUSION, HANGING DROP,          
REMARK 280  TEMPERATURE 277K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
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        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       25.37750            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       20.99000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       25.37750            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       20.99000            
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: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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      HOH A 206  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 233  LIES ON A SPECIAL POSITION.                          
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     DT A   6   O3'    DA A   7   P       0.081                       
REMARK 500     DG A  10   O3'    DT A  11   P       0.108                       
REMARK 500     DA A  13   O3'    DG A  14   P       0.084                       
REMARK 500     DT A  18   O3'    DA A  19   P       0.118                       
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     DA A   1   C3' -  O3' -  P   ANGL. DEV. = -10.4 DEGREES          
REMARK 500     DG A   2   O3' -  P   -  O5' ANGL. DEV. = -16.5 DEGREES          
REMARK 500     DG A   3   O3' -  P   -  OP2 ANGL. DEV. =  13.5 DEGREES          
REMARK 500     DG A   3   O5' -  P   -  OP2 ANGL. DEV. =  -9.0 DEGREES          
REMARK 500     DG A   4   O3' -  P   -  OP2 ANGL. DEV. =   8.9 DEGREES          
REMARK 500     DT A   5   O5' -  C5' -  C4' ANGL. DEV. =  -5.2 DEGREES          
REMARK 500     DT A   6   O3' -  P   -  OP2 ANGL. DEV. =   8.3 DEGREES          
REMARK 500     DG A   8   O5' -  P   -  OP2 ANGL. DEV. =  -5.7 DEGREES          
REMARK 500     DG A   8   O5' -  C5' -  C4' ANGL. DEV. =  -5.1 DEGREES          
REMARK 500     DG A   8   C3' -  O3' -  P   ANGL. DEV. =  -7.4 DEGREES          
REMARK 500     DG A   9   O3' -  P   -  OP2 ANGL. DEV. =  10.2 DEGREES          
REMARK 500     DG A  10   C3' -  O3' -  P   ANGL. DEV. =  -8.2 DEGREES          
REMARK 500     DT A  12   O5' -  P   -  OP1 ANGL. DEV. =  -7.3 DEGREES          
REMARK 500     DG A  14   O3' -  P   -  OP2 ANGL. DEV. =   7.7 DEGREES          
REMARK 500     DG A  14   O5' -  P   -  OP2 ANGL. DEV. = -15.5 DEGREES          
REMARK 500     DG A  14   O5' -  C5' -  C4' ANGL. DEV. =  -4.9 DEGREES          
REMARK 500     DG A  15   O3' -  P   -  OP2 ANGL. DEV. =  10.8 DEGREES          
REMARK 500     DG A  16   O3' -  P   -  OP2 ANGL. DEV. =   7.6 DEGREES          
REMARK 500     DT A  17   O5' -  P   -  OP1 ANGL. DEV. =  -6.3 DEGREES          
REMARK 500     DT A  18   O3' -  P   -  OP2 ANGL. DEV. =   7.7 DEGREES          
REMARK 500     DG A  20   O5' -  P   -  OP2 ANGL. DEV. =  -6.2 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                               K A 101   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  DG A   2   O6                                                     
REMARK 620 2  DG A   3   O6   75.6                                              
REMARK 620 3  DG A   8   O6   68.2  90.1                                        
REMARK 620 4  DG A   9   O6  129.6  71.3  74.9                                  
REMARK 620 5  DG A  14   O6  106.2 155.4  68.9  90.5                            
REMARK 620 6  DG A  15   O6  156.2 113.0 131.4  73.5  75.4                      
REMARK 620 7  DG A  20   O6   69.9 131.9 106.5 156.2  68.9  89.5                
REMARK 620 8  DG A  21   O6   91.0  71.4 155.3 112.4 132.3  72.3  76.6          
REMARK 620 N                    1     2     3     4     5     6     7           
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 103   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  DG A   2   O6                                                     
REMARK 620 2  DG A   8   O6   74.6                                              
REMARK 620 3  DG A  14   O6  120.1  72.6                                        
REMARK 620 4  DG A  20   O6   79.5 119.2  75.0                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 102   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  DG A   3   O6                                                     
REMARK 620 2  DG A   4   O6   70.8                                              
REMARK 620 3  DG A   9   O6   65.3  88.5                                        
REMARK 620 4  DG A  10   O6  126.5  77.3  72.2                                  
REMARK 620 5  DG A  15   O6  100.8 155.1  66.9  90.6                            
REMARK 620 6  DG A  16   O6  156.9 123.7 127.8  76.4  72.9                      
REMARK 620 7  DG A  21   O6   65.9 125.7 101.2 156.5  66.4  91.5                
REMARK 620 8  DG A  22   O6   90.8  76.8 155.2 122.4 127.6  76.9  72.8          
REMARK 620 N                    1     2     3     4     5     6     7           
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 101                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 102                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 103                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MMP A 104                 
DBREF  4FXM A    1    22  PDB    4FXM     4FXM             1     22             
SEQRES   1 A   22   DA  DG  DG  DG  DT  DT  DA  DG  DG  DG  DT  DT  DA          
SEQRES   2 A   22   DG  DG  DG  DT  DT  DA  DG  DG  DG                          
HET      K  A 101       1                                                       
HET      K  A 102       1                                                       
HET      K  A 103       1                                                       
HET    MMP  A 104      43                                                       
HETNAM       K POTASSIUM ION                                                    
HETNAM     MMP N-METHYLMESOPORPHYRIN                                            
FORMUL   2    K    3(K 1+)                                                      
FORMUL   5  MMP    C35 H40 N4 O4                                                
FORMUL   6  HOH   *53(H2 O)                                                     
LINK         O6   DG A   2                 K     K A 101     1555   1555  2.81  
LINK         O6   DG A   2                 K     K A 103     1555   1555  2.51  
LINK         O6   DG A   3                 K     K A 101     1555   1555  2.73  
LINK         O6   DG A   3                 K     K A 102     1555   1555  2.94  
LINK         O6   DG A   4                 K     K A 102     1555   1555  2.69  
LINK         O6   DG A   8                 K     K A 101     1555   1555  2.80  
LINK         O6   DG A   8                 K     K A 103     1555   1555  2.68  
LINK         O6   DG A   9                 K     K A 101     1555   1555  2.71  
LINK         O6   DG A   9                 K     K A 102     1555   1555  2.93  
LINK         O6   DG A  10                 K     K A 102     1555   1555  2.70  
LINK         O6   DG A  14                 K     K A 101     1555   1555  2.83  
LINK         O6   DG A  14                 K     K A 103     1555   1555  2.70  
LINK         O6   DG A  15                 K     K A 101     1555   1555  2.70  
LINK         O6   DG A  15                 K     K A 102     1555   1555  2.93  
LINK         O6   DG A  16                 K     K A 102     1555   1555  2.72  
LINK         O6   DG A  20                 K     K A 101     1555   1555  2.81  
LINK         O6   DG A  20                 K     K A 103     1555   1555  2.53  
LINK         O6   DG A  21                 K     K A 101     1555   1555  2.73  
LINK         O6   DG A  21                 K     K A 102     1555   1555  2.91  
LINK         O6   DG A  22                 K     K A 102     1555   1555  2.76  
SITE     1 AC1 10  DG A   2   DG A   3   DG A   8   DG A   9                    
SITE     2 AC1 10  DG A  14   DG A  15   DG A  20   DG A  21                    
SITE     3 AC1 10   K A 102    K A 103                                          
SITE     1 AC2 10  DG A   3   DG A   4   DG A   9   DG A  10                    
SITE     2 AC2 10  DG A  15   DG A  16   DG A  21   DG A  22                    
SITE     3 AC2 10   K A 101  MMP A 104                                          
SITE     1 AC3  5  DG A   2   DG A   8   DG A  14   DG A  20                    
SITE     2 AC3  5   K A 101                                                     
SITE     1 AC4 10  DA A   1   DG A   3   DG A   4   DG A  10                    
SITE     2 AC4 10  DT A  12   DG A  16   DG A  22    K A 102                    
SITE     3 AC4 10 HOH A 201  HOH A 242                                          
CRYST1   50.755   41.980   42.384  90.00  90.00  90.00 P 21 21 2     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      0.019702  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.023821  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.023594        0.00000