PDB Short entry for 1T7P
HEADER    TRANSFERASE/DNA                         24-SEP-97   1T7P              
TITLE     T7 DNA POLYMERASE COMPLEXED TO DNA PRIMER/TEMPLATE,A NUCLEOSIDE       
TITLE    2 TRIPHOSPHATE, AND ITS PROCESSIVITY FACTOR THIOREDOXIN                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA (5'-D(P*GP*CP*CP*AP*GP*TP*GP*CP*CP*AP*2DA)-3');        
COMPND   3 CHAIN: P;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: DNA (5'-D(P*CP*CP*TP*TP*GP*GP*CP*AP*CP*TP*GP*GP*C)-3');    
COMPND   7 CHAIN: T;                                                            
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: DNA-DIRECTED DNA POLYMERASE;                               
COMPND  11 CHAIN: A;                                                            
COMPND  12 SYNONYM: GENE PRODUCT 5,GP5;                                         
COMPND  13 EC: 2.7.7.7,3.1.11.-;                                                
COMPND  14 ENGINEERED: YES;                                                     
COMPND  15 MUTATION: YES;                                                       
COMPND  16 MOL_ID: 4;                                                           
COMPND  17 MOLECULE: THIOREDOXIN 1;                                             
COMPND  18 CHAIN: B;                                                            
COMPND  19 SYNONYM: TRX-1;                                                      
COMPND  20 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 SYNTHETIC: YES;                                                      
SOURCE   5 MOL_ID: 3;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: ENTEROBACTERIA PHAGE T7;                        
SOURCE   7 ORGANISM_COMMON: BACTERIOPHAGE T7;                                   
SOURCE   8 ORGANISM_TAXID: 10760;                                               
SOURCE   9 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  10 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  11 MOL_ID: 4;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI O157:H7;                       
SOURCE  13 ORGANISM_TAXID: 83334;                                               
SOURCE  14 GENE: TRXA, Z5291, ECS4714                                           
KEYWDS    T7 DNA POLYMERASE, DNA REPLICATION, NUCLEOTIDYL TRANSFERASE,          
KEYWDS   2 THIOREDOXIN, PROCESSIVITY FACTOR, COMPLEX (HYDROLASE-ELECTRON        
KEYWDS   3 TRANSPORT-DNA), TRANSFERASE-DNA COMPLEX                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.DOUBLIE,S.TABOR,A.M.LONG,C.C.RICHARDSON,T.ELLENBERGER               
REVDAT   3   04-APR-18 1T7P    1       COMPND SOURCE DBREF  SEQADV              
REVDAT   2   24-FEB-09 1T7P    1       VERSN                                    
REVDAT   1   25-FEB-98 1T7P    0                                                
JRNL        AUTH   S.DOUBLIE,S.TABOR,A.M.LONG,C.C.RICHARDSON,T.ELLENBERGER      
JRNL        TITL   CRYSTAL STRUCTURE OF A BACTERIOPHAGE T7 DNA REPLICATION      
JRNL        TITL 2 COMPLEX AT 2.2 A RESOLUTION.                                 
JRNL        REF    NATURE                        V. 391   251 1998              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   9440688                                                      
JRNL        DOI    10.1038/34593                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.851                                         
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 60190                          
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 SET) : 0.240                           
REMARK   3   FREE R VALUE                     : 0.279                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 8                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.30                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 5447                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3020                       
REMARK   3   BIN FREE R VALUE                    : 0.3330                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 10.00                        
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 593                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 6068                                    
REMARK   3   NUCLEIC ACID ATOMS       : 488                                     
REMARK   3   HETEROGEN ATOMS          : 33                                      
REMARK   3   SOLVENT ATOMS            : 503                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 23.20                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.006                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.190                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 22.86                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.090                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PARHCSDX.PRO                                   
REMARK   3  PARAMETER FILE  2  : PARNDBX.DNA                                    
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : TOPHCSDX.PRO                                   
REMARK   3  TOPOLOGY FILE  2   : TOPNDBX.DNA                                    
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1T7P COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY NDB.                                
REMARK 100 THE DEPOSITION ID IS D_1000176573.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NOV-96                             
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X12C                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 162012                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.5                               
REMARK 200  DATA REDUNDANCY                : 2.700                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05400                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 20.8000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.30                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 86.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.20                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.15000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 6.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: MLPHARE                                               
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 59.70                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.05                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.5                                   
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       53.30000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000      108.15000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       53.30000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000      108.15000            
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: TETRAMERIC                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: P, T, 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     VAL A   294                                                      
REMARK 465     GLY A   295                                                      
REMARK 465     GLY A   296                                                      
REMARK 465     ILE A   297                                                      
REMARK 465     PHE A   298                                                      
REMARK 465     LYS A   299                                                      
REMARK 465     LYS A   300                                                      
REMARK 465     PRO A   301                                                      
REMARK 465     LYS A   302                                                      
REMARK 465     ASN A   303                                                      
REMARK 465     LYS A   304                                                      
REMARK 465     ALA A   305                                                      
REMARK 465     GLN A   306                                                      
REMARK 465     ARG A   307                                                      
REMARK 465     GLU A   308                                                      
REMARK 465     GLY A   309                                                      
REMARK 465     ARG A   310                                                      
REMARK 465     GLU A   311                                                      
REMARK 465     PRO A   312                                                      
REMARK 465     CYS A   313                                                      
REMARK 465     GLU A   314                                                      
REMARK 465     LEU A   315                                                      
REMARK 465     ASP A   316                                                      
REMARK 465     THR A   317                                                      
REMARK 465     ARG A   318                                                      
REMARK 465     SER A   576                                                      
REMARK 465     SER A   577                                                      
REMARK 465     GLN A   578                                                      
REMARK 465     TRP A   579                                                      
REMARK 465     VAL A   580                                                      
REMARK 465     ALA A   581                                                      
REMARK 465     GLY A   582                                                      
REMARK 465     GLU A   583                                                      
REMARK 465     GLN A   584                                                      
REMARK 465     GLN A   585                                                      
REMARK 465     VAL A   586                                                      
REMARK 465     SER B     1                                                      
REMARK 465     ASP B     2                                                      
REMARK 465     ALA B   108                                                      
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     GLU A 166    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 189    CG   CD   CE   NZ                                   
REMARK 470     LYS A 285    CG   CD   CE   NZ                                   
REMARK 470     LYS A 293    CG   CD   CE   NZ                                   
REMARK 470     GLN A 571    CG   CD   OE1  NE2                                  
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ASN A  60       32.01     77.50                                   
REMARK 500    TYR A  64      -71.08   -117.78                                   
REMARK 500    HIS A  99       49.01   -104.28                                   
REMARK 500    ASP A 156      -82.24     22.58                                   
REMARK 500    THR A 279      -99.40    -78.19                                   
REMARK 500    ILE A 289     -167.75   -100.87                                   
REMARK 500    LYS A 359      -53.73   -178.32                                   
REMARK 500    VAL A 364       77.02   -118.31                                   
REMARK 500    VAL A 374     -160.54   -114.10                                   
REMARK 500    ALA A 400      -44.17   -130.77                                   
REMARK 500    LEU A 479      -76.41    -32.51                                   
REMARK 500    TYR A 530       30.07    -93.73                                   
REMARK 500    VAL A 652       78.81   -113.24                                   
REMARK 500    HIS A 653      -77.42     67.23                                   
REMARK 500    VAL B  16      -62.82   -108.84                                   
REMARK 500    ASP B  20       72.49     56.52                                   
REMARK 500    GLN B  50       97.01    -68.55                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500     DC P  20         0.07    SIDE CHAIN                              
REMARK 500     DG T   7         0.07    SIDE CHAIN                              
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                              MG A4002  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 654   OD1                                                    
REMARK 620 2 HOH A3195   O    94.7                                              
REMARK 620 3 ASP A 475   OD2  97.6  90.8                                        
REMARK 620 4 DG3 P  23   O2A  88.9 156.5 111.7                                  
REMARK 620 5 HOH P3180   O   162.4  81.0  99.6  88.6                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A4001  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 DG3 P  23   O1G                                                    
REMARK 620 2 DG3 P  23   O2B  90.4                                              
REMARK 620 3 ALA A 476   O    98.2  95.4                                        
REMARK 620 4 ASP A 654   OD2 164.8  95.6  95.2                                  
REMARK 620 5 ASP A 475   OD1  76.3 166.6  84.8  97.7                            
REMARK 620 6 DG3 P  23   O2A  86.5  86.5 174.9  79.9  94.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A4003  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH A3534   O                                                      
REMARK 620 2 HOH A3533   O    78.6                                              
REMARK 620 3 HOH A3535   O    87.9 153.9                                        
REMARK 620 4 ASP A   5   OD1  69.5  79.4  74.9                                  
REMARK 620 5 HOH A3532   O   147.4  90.6  88.8  78.3                            
REMARK 620 N                    1     2     3     4                             
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 4001                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 4002                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 4003                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DG3 P 23                  
DBREF  1T7P P   12    22  PDB    1T7P     1T7P            12     22             
DBREF  1T7P T    3    15  PDB    1T7P     1T7P             3     15             
DBREF  1T7P A    1   704  UNP    P00581   DPOL_BPT7        1    704             
DBREF  1T7P B    1   108  UNP    P0AA27   THIO_ECO57       2    109             
SEQADV 1T7P     A       UNP  P00581    LYS   118 DELETION                       
SEQADV 1T7P     A       UNP  P00581    ARG   119 DELETION                       
SEQADV 1T7P     A       UNP  P00581    PHE   120 DELETION                       
SEQADV 1T7P     A       UNP  P00581    GLY   121 DELETION                       
SEQADV 1T7P     A       UNP  P00581    SER   122 DELETION                       
SEQADV 1T7P     A       UNP  P00581    HIS   123 DELETION                       
SEQRES   1 P   11   DG  DC  DC  DA  DG  DT  DG  DC  DC  DA 2DA                  
SEQRES   1 T   13   DC  DC  DT  DT  DG  DG  DC  DA  DC  DT  DG  DG  DC          
SEQRES   1 A  698  MET ILE VAL SER ASP ILE GLU ALA ASN ALA LEU LEU GLU          
SEQRES   2 A  698  SER VAL THR LYS PHE HIS CYS GLY VAL ILE TYR ASP TYR          
SEQRES   3 A  698  SER THR ALA GLU TYR VAL SER TYR ARG PRO SER ASP PHE          
SEQRES   4 A  698  GLY ALA TYR LEU ASP ALA LEU GLU ALA GLU VAL ALA ARG          
SEQRES   5 A  698  GLY GLY LEU ILE VAL PHE HIS ASN GLY HIS LYS TYR ASP          
SEQRES   6 A  698  VAL PRO ALA LEU THR LYS LEU ALA LYS LEU GLN LEU ASN          
SEQRES   7 A  698  ARG GLU PHE HIS LEU PRO ARG GLU ASN CYS ILE ASP THR          
SEQRES   8 A  698  LEU VAL LEU SER ARG LEU ILE HIS SER ASN LEU LYS ASP          
SEQRES   9 A  698  THR ASP MET GLY LEU LEU ARG SER GLY LYS LEU PRO GLY          
SEQRES  10 A  698  ALA LEU GLU ALA TRP GLY TYR ARG LEU GLY GLU MET LYS          
SEQRES  11 A  698  GLY GLU TYR LYS ASP ASP PHE LYS ARG MET LEU GLU GLU          
SEQRES  12 A  698  GLN GLY GLU GLU TYR VAL ASP GLY MET GLU TRP TRP ASN          
SEQRES  13 A  698  PHE ASN GLU GLU MET MET ASP TYR ASN VAL GLN ASP VAL          
SEQRES  14 A  698  VAL VAL THR LYS ALA LEU LEU GLU LYS LEU LEU SER ASP          
SEQRES  15 A  698  LYS HIS TYR PHE PRO PRO GLU ILE ASP PHE THR ASP VAL          
SEQRES  16 A  698  GLY TYR THR THR PHE TRP SER GLU SER LEU GLU ALA VAL          
SEQRES  17 A  698  ASP ILE GLU HIS ARG ALA ALA TRP LEU LEU ALA LYS GLN          
SEQRES  18 A  698  GLU ARG ASN GLY PHE PRO PHE ASP THR LYS ALA ILE GLU          
SEQRES  19 A  698  GLU LEU TYR VAL GLU LEU ALA ALA ARG ARG SER GLU LEU          
SEQRES  20 A  698  LEU ARG LYS LEU THR GLU THR PHE GLY SER TRP TYR GLN          
SEQRES  21 A  698  PRO LYS GLY GLY THR GLU MET PHE CYS HIS PRO ARG THR          
SEQRES  22 A  698  GLY LYS PRO LEU PRO LYS TYR PRO ARG ILE LYS THR PRO          
SEQRES  23 A  698  LYS VAL GLY GLY ILE PHE LYS LYS PRO LYS ASN LYS ALA          
SEQRES  24 A  698  GLN ARG GLU GLY ARG GLU PRO CYS GLU LEU ASP THR ARG          
SEQRES  25 A  698  GLU TYR VAL ALA GLY ALA PRO TYR THR PRO VAL GLU HIS          
SEQRES  26 A  698  VAL VAL PHE ASN PRO SER SER ARG ASP HIS ILE GLN LYS          
SEQRES  27 A  698  LYS LEU GLN GLU ALA GLY TRP VAL PRO THR LYS TYR THR          
SEQRES  28 A  698  ASP LYS GLY ALA PRO VAL VAL ASP ASP GLU VAL LEU GLU          
SEQRES  29 A  698  GLY VAL ARG VAL ASP ASP PRO GLU LYS GLN ALA ALA ILE          
SEQRES  30 A  698  ASP LEU ILE LYS GLU TYR LEU MET ILE GLN LYS ARG ILE          
SEQRES  31 A  698  GLY GLN SER ALA GLU GLY ASP LYS ALA TRP LEU ARG TYR          
SEQRES  32 A  698  VAL ALA GLU ASP GLY LYS ILE HIS GLY SER VAL ASN PRO          
SEQRES  33 A  698  ASN GLY ALA VAL THR GLY ARG ALA THR HIS ALA PHE PRO          
SEQRES  34 A  698  ASN LEU ALA GLN ILE PRO GLY VAL ARG SER PRO TYR GLY          
SEQRES  35 A  698  GLU GLN CYS ARG ALA ALA PHE GLY ALA GLU HIS HIS LEU          
SEQRES  36 A  698  ASP GLY ILE THR GLY LYS PRO TRP VAL GLN ALA GLY ILE          
SEQRES  37 A  698  ASP ALA SER GLY LEU GLU LEU ARG CYS LEU ALA HIS PHE          
SEQRES  38 A  698  MET ALA ARG PHE ASP ASN GLY GLU TYR ALA HIS GLU ILE          
SEQRES  39 A  698  LEU ASN GLY ASP ILE HIS THR LYS ASN GLN ILE ALA ALA          
SEQRES  40 A  698  GLU LEU PRO THR ARG ASP ASN ALA LYS THR PHE ILE TYR          
SEQRES  41 A  698  GLY PHE LEU TYR GLY ALA GLY ASP GLU LYS ILE GLY GLN          
SEQRES  42 A  698  ILE VAL GLY ALA GLY LYS GLU ARG GLY LYS GLU LEU LYS          
SEQRES  43 A  698  LYS LYS PHE LEU GLU ASN THR PRO ALA ILE ALA ALA LEU          
SEQRES  44 A  698  ARG GLU SER ILE GLN GLN THR LEU VAL GLU SER SER GLN          
SEQRES  45 A  698  TRP VAL ALA GLY GLU GLN GLN VAL LYS TRP LYS ARG ARG          
SEQRES  46 A  698  TRP ILE LYS GLY LEU ASP GLY ARG LYS VAL HIS VAL ARG          
SEQRES  47 A  698  SER PRO HIS ALA ALA LEU ASN THR LEU LEU GLN SER ALA          
SEQRES  48 A  698  GLY ALA LEU ILE CYS LYS LEU TRP ILE ILE LYS THR GLU          
SEQRES  49 A  698  GLU MET LEU VAL GLU LYS GLY LEU LYS HIS GLY TRP ASP          
SEQRES  50 A  698  GLY ASP PHE ALA TYR MET ALA TRP VAL HIS ASP GLU ILE          
SEQRES  51 A  698  GLN VAL GLY CYS ARG THR GLU GLU ILE ALA GLN VAL VAL          
SEQRES  52 A  698  ILE GLU THR ALA GLN GLU ALA MET ARG TRP VAL GLY ASP          
SEQRES  53 A  698  HIS TRP ASN PHE ARG CYS LEU LEU ASP THR GLU GLY LYS          
SEQRES  54 A  698  MET GLY PRO ASN TRP ALA ILE CYS HIS                          
SEQRES   1 B  108  SER ASP LYS ILE ILE HIS LEU THR ASP ASP SER PHE ASP          
SEQRES   2 B  108  THR ASP VAL LEU LYS ALA ASP GLY ALA ILE LEU VAL ASP          
SEQRES   3 B  108  PHE TRP ALA GLU TRP CYS GLY PRO CYS LYS MET ILE ALA          
SEQRES   4 B  108  PRO ILE LEU ASP GLU ILE ALA ASP GLU TYR GLN GLY LYS          
SEQRES   5 B  108  LEU THR VAL ALA LYS LEU ASN ILE ASP GLN ASN PRO GLY          
SEQRES   6 B  108  THR ALA PRO LYS TYR GLY ILE ARG GLY ILE PRO THR LEU          
SEQRES   7 B  108  LEU LEU PHE LYS ASN GLY GLU VAL ALA ALA THR LYS VAL          
SEQRES   8 B  108  GLY ALA LEU SER LYS GLY GLN LEU LYS GLU PHE LEU ASP          
SEQRES   9 B  108  ALA ASN LEU ALA                                              
MODRES 1T7P 2DA P   22   DA  2',3'-DIDEOXYADENOSINE-5'-MONOPHOSPHATE            
HET    2DA  P  22      20                                                       
HET    DG3  P  23      30                                                       
HET     MG  A4001       1                                                       
HET     MG  A4002       1                                                       
HET     MG  A4003       1                                                       
HETNAM     2DA 2',3'-DIDEOXYADENOSINE-5'-MONOPHOSPHATE                          
HETNAM     DG3 2'-3'-DIDEOXYGUANOSINE-5'-TRIPHOSPHATE                           
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   1  2DA    C10 H14 N5 O5 P                                              
FORMUL   5  DG3    C10 H16 N5 O12 P3                                            
FORMUL   6   MG    3(MG 2+)                                                     
FORMUL   9  HOH   *503(H2 O)                                                    
HELIX    1   1 LEU A   12  SER A   14  5                                   3    
HELIX    2   2 PRO A   36  ALA A   51  5                                  16    
HELIX    3   3 ASP A   65  GLN A   76  1                                  12    
HELIX    4   4 ARG A   85  ASN A   87  5                                   3    
HELIX    5   5 THR A   91  ILE A   98  1                                   8    
HELIX    6   6 ALA A  127  GLU A  149  1                                  23    
HELIX    7   7 MET A  158  TRP A  160  5                                   3    
HELIX    8   8 GLU A  165  LEU A  186  1                                  22    
HELIX    9   9 TYR A  203  GLU A  209  1                                   7    
HELIX   10  10 GLU A  212  ASN A  230  1                                  19    
HELIX   11  11 THR A  236  THR A  260  1                                  25    
HELIX   12  12 ASP A  340  GLN A  347  1                                   8    
HELIX   13  13 ASP A  366  GLY A  371  1                                   6    
HELIX   14  14 PRO A  377  SER A  399  1                                  23    
HELIX   15  15 TRP A  406  TYR A  409  1                                   4    
HELIX   16  16 GLY A  448  ALA A  454  1                                   7    
HELIX   17  17 ALA A  457  HIS A  459  5                                   3    
HELIX   18  18 LEU A  479  ASP A  492  1                                  14    
HELIX   19  19 GLU A  495  GLU A  499  1                                   5    
HELIX   20  20 ILE A  505  ALA A  513  1                                   9    
HELIX   21  21 ARG A  518  LEU A  529  1                                  12    
HELIX   22  22 ASP A  534  VAL A  541  1                                   8    
HELIX   23  23 LYS A  545  ASN A  558  1                                  14    
HELIX   24  24 ALA A  561  LEU A  573  1                                  13    
HELIX   25  25 PRO A  606  LYS A  636  5                                  31    
HELIX   26  26 GLU A  663  HIS A  683  1                                  21    
HELIX   27  27 ASP B    9  ASP B   15  1                                   7    
HELIX   28  28 GLY B   33  GLU B   48  1                                  16    
HELIX   29  29 PRO B   68  TYR B   70  5                                   3    
HELIX   30  30 LYS B   96  ALA B  105  1                                  10    
SHEET    1   A 3 GLU A  30  TYR A  34  0                                        
SHEET    2   A 3 PHE A  18  ASP A  25 -1  N  ASP A  25   O  GLU A  30           
SHEET    3   A 3 ILE A   2  ALA A   8 -1  N  GLU A   7   O  HIS A  19           
SHEET    1   B 2 ILE A  56  PHE A  58  0                                        
SHEET    2   B 2 CYS A  88  ASP A  90  1  N  ILE A  89   O  ILE A  56           
SHEET    1   C 2 TRP A 264  PRO A 267  0                                        
SHEET    2   C 2 VAL A 329  VAL A 332 -1  N  VAL A 332   O  TRP A 264           
SHEET    1   D 2 SER A 419  ASN A 421  0                                        
SHEET    2   D 2 THR A 431  ALA A 433 -1  N  ALA A 433   O  SER A 419           
SHEET    1   E 4 THR A 692  GLY A 697  0                                        
SHEET    2   E 4 VAL A 470  ALA A 476 -1  N  ASP A 475   O  GLU A 693           
SHEET    3   E 4 GLU A 655  CYS A 660 -1  N  CYS A 660   O  VAL A 470           
SHEET    4   E 4 PHE A 646  TRP A 651 -1  N  ALA A 650   O  GLN A 657           
SHEET    1   F 2 TRP A 592  LYS A 594  0                                        
SHEET    2   F 2 LYS A 600  HIS A 602 -1  N  VAL A 601   O  ILE A 593           
SHEET    1   G 4 THR B  54  ASN B  59  0                                        
SHEET    2   G 4 ALA B  22  TRP B  28  1  N  LEU B  24   O  THR B  54           
SHEET    3   G 4 THR B  77  LYS B  82 -1  N  PHE B  81   O  ILE B  23           
SHEET    4   G 4 GLU B  85  VAL B  91 -1  N  LYS B  90   O  LEU B  78           
LINK        MG    MG A4002                 OD1 ASP A 654     1555   1555  2.30  
LINK        MG    MG A4001                 O1G DG3 P  23     1555   1555  2.19  
LINK        MG    MG A4001                 O2B DG3 P  23     1555   1555  2.21  
LINK        MG    MG A4001                 O   ALA A 476     1555   1555  2.19  
LINK        MG    MG A4001                 OD2 ASP A 654     1555   1555  2.35  
LINK        MG    MG A4001                 OD1 ASP A 475     1555   1555  2.33  
LINK        MG    MG A4001                 O2A DG3 P  23     1555   1555  2.32  
LINK        MG    MG A4002                 O   HOH A3195     1555   1555  2.40  
LINK        MG    MG A4002                 OD2 ASP A 475     1555   1555  2.54  
LINK        MG    MG A4002                 O2A DG3 P  23     1555   1555  2.38  
LINK        MG    MG A4002                 O   HOH P3180     1555   1555  2.37  
LINK        MG    MG A4003                 O   HOH A3534     1555   1555  2.28  
LINK        MG    MG A4003                 O   HOH A3533     1555   1555  2.47  
LINK        MG    MG A4003                 O   HOH A3535     1555   1555  2.30  
LINK        MG    MG A4003                 OD1 ASP A   5     1555   1555  2.48  
LINK        MG    MG A4003                 O   HOH A3532     1555   1555  2.33  
LINK         O3'  DA P  21                 P   2DA P  22     1555   1555  1.60  
CISPEP   1 PHE A  434    PRO A  435          0        -0.64                     
CISPEP   2 ILE B   75    PRO B   76          0        -0.12                     
SITE     1 AC1  4 ASP A 475  ALA A 476  ASP A 654  DG3 P  23                    
SITE     1 AC2  6 ASP A 475  ASP A 654  HOH A3195  2DA P  22                    
SITE     2 AC2  6 DG3 P  23  HOH P3180                                          
SITE     1 AC3  5 ASP A   5  HOH A3532  HOH A3533  HOH A3534                    
SITE     2 AC3  5 HOH A3535                                                     
SITE     1 AC4 21 ARG A 429  ASP A 475  ALA A 476  SER A 477                    
SITE     2 AC4 21 GLY A 478  LEU A 479  GLU A 480  HIS A 506                    
SITE     3 AC4 21 ARG A 518  LYS A 522  TYR A 526  TYR A 530                    
SITE     4 AC4 21 ASP A 654  HOH A3486   MG A4001   MG A4002                    
SITE     5 AC4 21 2DA P  22  HOH P3107  HOH P3405   DC T   4                    
SITE     6 AC4 21  DT T   5                                                     
CRYST1  106.600  216.300   52.100  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      0.009381  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.004623  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.019194        0.00000