HEADER    LIGASE                                  22-NOV-21   7SX5              
TITLE     CRYSTAL STRUCTURE OF LIGASE I WITH NICK DUPLEXES CONTAINING MISMATCH  
TITLE    2 A:C                                                                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA LIGASE 1;                                              
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 261-918;                                      
COMPND   5 SYNONYM: DNA LIGASE I,POLYDEOXYRIBONUCLEOTIDE SYNTHASE [ATP] 1;      
COMPND   6 EC: 6.5.1.1;                                                         
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MOL_ID: 2;                                                           
COMPND   9 MOLECULE: DNA CHAIN 1;                                               
COMPND  10 CHAIN: B;                                                            
COMPND  11 ENGINEERED: YES;                                                     
COMPND  12 MOL_ID: 3;                                                           
COMPND  13 MOLECULE: DNA CHAIN 2;                                               
COMPND  14 CHAIN: C;                                                            
COMPND  15 ENGINEERED: YES;                                                     
COMPND  16 MOL_ID: 4;                                                           
COMPND  17 MOLECULE: DNA CHAIN 3;                                               
COMPND  18 CHAIN: D;                                                            
COMPND  19 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: LIG1;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 MOL_ID: 2;                                                           
SOURCE   9 SYNTHETIC: YES;                                                      
SOURCE  10 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE  11 ORGANISM_TAXID: 32630;                                               
SOURCE  12 MOL_ID: 3;                                                           
SOURCE  13 SYNTHETIC: YES;                                                      
SOURCE  14 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE  15 ORGANISM_TAXID: 32630;                                               
SOURCE  16 MOL_ID: 4;                                                           
SOURCE  17 SYNTHETIC: YES;                                                      
SOURCE  18 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE  19 ORGANISM_TAXID: 32630                                                
KEYWDS    PROTEIN-DNA COMPLEX, LIGASE                                           
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Q.TANG,M.GULKIS,R.MCKENNA,M.CAGLAYAN                                  
REVDAT   4   18-OCT-23 7SX5    1       REMARK                                   
REVDAT   3   21-SEP-22 7SX5    1       REMARK                                   
REVDAT   2   20-JUL-22 7SX5    1       JRNL                                     
REVDAT   1   13-JUL-22 7SX5    0                                                
JRNL        AUTH   Q.TANG,M.GULKIS,R.MCKENNA,M.CAGLAYAN                         
JRNL        TITL   STRUCTURES OF LIG1 THAT ENGAGE WITH MUTAGENIC MISMATCHES     
JRNL        TITL 2 INSERTED BY POL BETA IN BASE EXCISION REPAIR.                
JRNL        REF    NAT COMMUN                    V.  13  3860 2022              
JRNL        REFN                   ESSN 2041-1723                               
JRNL        PMID   35790757                                                     
JRNL        DOI    10.1038/S41467-022-31585-W                                   
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.17.1_3660                                   
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.96                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.370                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 82.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 36695                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.177                           
REMARK   3   R VALUE            (WORKING SET) : 0.175                           
REMARK   3   FREE R VALUE                     : 0.212                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.380                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1974                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 19.9600 -  6.6700    0.99     3004   149  0.1586 0.2316        
REMARK   3     2  6.6700 -  5.3300    1.00     2990   186  0.1800 0.2274        
REMARK   3     3  5.3300 -  4.6600    0.96     2874   165  0.1585 0.2178        
REMARK   3     4  4.6600 -  4.2400    0.95     2830   189  0.1416 0.1452        
REMARK   3     5  4.2400 -  3.9400    0.99     2929   226  0.1511 0.1968        
REMARK   3     6  3.9400 -  3.7100    0.99     2956   181  0.1648 0.2018        
REMARK   3     7  3.7100 -  3.5200    0.98     2967   113  0.1792 0.2154        
REMARK   3     8  3.5200 -  3.3700    0.92     2801   141  0.1941 0.2362        
REMARK   3     9  3.3700 -  3.2400    0.85     2572   124  0.1972 0.2113        
REMARK   3    10  3.2400 -  3.1300    0.77     2338   114  0.1996 0.1985        
REMARK   3    11  3.1300 -  3.0300    0.70     2087   121  0.2155 0.2685        
REMARK   3    12  3.0300 -  2.9500    0.59     1737   108  0.2431 0.2449        
REMARK   3    13  2.9500 -  2.8700    0.50     1505    82  0.2621 0.3015        
REMARK   3    14  2.8700 -  2.8000    0.38     1131    75  0.2893 0.3563        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.260            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.220           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 38.30                          
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :   NULL           NULL                                  
REMARK   3   ANGLE     :   NULL           NULL                                  
REMARK   3   CHIRALITY :   NULL           NULL                                  
REMARK   3   PLANARITY :   NULL           NULL                                  
REMARK   3   DIHEDRAL  :   NULL           NULL                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 7SX5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-NOV-21.                  
REMARK 100 THE DEPOSITION ID IS D_1000260250.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 28-APR-21                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : CHESS                              
REMARK 200  BEAMLINE                       : 7B2                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9686                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS EIGER X 16M                
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 36695                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
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  : 21.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.85                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
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: 7SUM                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 52.68                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM MES PH 6.6, 100 MM LITHIUM        
REMARK 280  ACETATE, 20% (W/V) POLYETHYLENE GLYCOL PEG3350, VAPOR DIFFUSION,    
REMARK 280  HANGING DROP, TEMPERATURE 293K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       31.87750            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       63.00600            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       58.20350            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       63.00600            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       31.87750            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       58.20350            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 7360 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 31320 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -48.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                            
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     SER A   388                                                      
REMARK 465     THR A   389                                                      
REMARK 465     GLN A   390                                                      
REMARK 465     ASP A   751                                                      
REMARK 465     GLN A   902                                                      
REMARK 465     ILE A   903                                                      
REMARK 465     GLN A   904                                                      
REMARK 465     ASN A   905                                                      
REMARK 465     GLN A   906                                                      
REMARK 465     GLN A   907                                                      
REMARK 465     GLY A   908                                                      
REMARK 465     GLU A   909                                                      
REMARK 465     ASP A   910                                                      
REMARK 465     SER A   911                                                      
REMARK 465     GLY A   912                                                      
REMARK 465     SER A   913                                                      
REMARK 465     ASP A   914                                                      
REMARK 465     PRO A   915                                                      
REMARK 465     GLU A   916                                                      
REMARK 465     ASP A   917                                                      
REMARK 465     THR A   918                                                      
REMARK 465     ALA A   919                                                      
REMARK 465     ALA A   920                                                      
REMARK 465     ALA A   921                                                      
REMARK 465     LEU A   922                                                      
REMARK 465     GLU A   923                                                      
REMARK 465     HIS A   924                                                      
REMARK 465     HIS A   925                                                      
REMARK 465     HIS A   926                                                      
REMARK 465     HIS A   927                                                      
REMARK 465     HIS A   928                                                      
REMARK 465     HIS A   929                                                      
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     LYS A 282    CG   CD   CE   NZ                                   
REMARK 470     ARG A 364    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LEU A 392    CG   CD1  CD2                                       
REMARK 470     MET A 393    CG   SD   CE                                        
REMARK 470     GLU A 497    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 522    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 530    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 556    CG   CD   CE   NZ                                   
REMARK 470     GLU A 559    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 607    CG   CD   CE   NZ                                   
REMARK 470     LYS A 630    CG   CD   CE   NZ                                   
REMARK 470     ARG A 677    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LEU A 699    CG   CD1  CD2                                       
REMARK 470     GLU A 734    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 737    CG   CD   CE   NZ                                   
REMARK 470     TYR A 749    CG   CD1  CD2  CE1  CE2  CZ   OH                    
REMARK 470     LYS A 770    CG   CD   CE   NZ                                   
REMARK 470     ARG A 871    CG   CD   NE   CZ   NH1  NH2                        
REMARK 475                                                                      
REMARK 475 ZERO OCCUPANCY RESIDUES                                              
REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY.             
REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT                
REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE)          
REMARK 475   M RES C  SSEQI                                                     
REMARK 475     LEU A   392                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     LYS A  568   CE   NZ                                             
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   NZ   LYS A   568     P    AMP A  1001              1.72            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500     DC B   4   O3'    DT B   5   P      -0.100                       
REMARK 500     DA B   7   O3'    DT B   8   P      -0.073                       
REMARK 500     DT B   8   O3'    DG B   9   P      -0.079                       
REMARK 500     DC B  10   O3'    DG B  11   P      -0.073                       
REMARK 500     DG C   1   O3'    DT C   2   P      -0.078                       
REMARK 500     DC C   3   O3'    DG C   4   P      -0.096                       
REMARK 500     DG C   4   O3'    DG C   5   P      -0.082                       
REMARK 500     DC D  23   O3'    DA D  24   P      -0.109                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    SER A 264      -18.51    -49.65                                   
REMARK 500    ALA A 279      171.74    -56.64                                   
REMARK 500    ARG A 305      -37.44    -38.84                                   
REMARK 500    ASP A 378      123.23   -178.78                                   
REMARK 500    HIS A 436     -118.69     60.29                                   
REMARK 500    ARG A 449       66.04   -111.44                                   
REMARK 500    ALA A 455     -155.33   -128.46                                   
REMARK 500    ALA A 483       30.04    -91.06                                   
REMARK 500    PRO A 529        5.14    -61.28                                   
REMARK 500    SER A 552      -71.83    -75.46                                   
REMARK 500    GLU A 559     -114.44     61.40                                   
REMARK 500    GLU A 560       76.26   -102.66                                   
REMARK 500    LYS A 644      171.03    -55.17                                   
REMARK 500    GLU A 645      108.78    -44.50                                   
REMARK 500    GLU A 692      -54.28   -124.56                                   
REMARK 500    SER A 718       44.51     72.55                                   
REMARK 500    ASP A 728      -35.48   -136.65                                   
REMARK 500    ASP A 730       -7.50     67.42                                   
REMARK 500    ALA A 731       65.77    -66.62                                   
REMARK 500    ALA A 736      -60.55    -90.41                                   
REMARK 500    SER A 739       10.41   -141.70                                   
REMARK 500    LYS A 770      -13.66     89.68                                   
REMARK 500    ASP A 827     -134.06     54.05                                   
REMARK 500    PRO A 838       97.92    -69.13                                   
REMARK 500    SER A 839      -36.92   -135.72                                   
REMARK 500    ALA A 847      -72.69    -68.85                                   
REMARK 500    ILE A 876      -66.70   -107.95                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A1250        DISTANCE =  5.85 ANGSTROMS                       
REMARK 525    HOH A1251        DISTANCE =  6.64 ANGSTROMS                       
REMARK 525    HOH A1252        DISTANCE =  7.18 ANGSTROMS                       
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     AMP A 1001                                                       
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 7SUM   RELATED DB: PDB                                   
REMARK 900 SAME PROTEIN WITH AT NICK DNA                                        
DBREF  7SX5 A  261   918  UNP    P18858   DNLI1_HUMAN    261    918             
DBREF  7SX5 B    3    13  PDB    7SX5     7SX5             3     13             
DBREF  7SX5 C    1     7  PDB    7SX5     7SX5             1      7             
DBREF  7SX5 D    9    26  PDB    7SX5     7SX5             9     26             
SEQADV 7SX5 ALA A  346  UNP  P18858    GLU   346 CONFLICT                       
SEQADV 7SX5 ALA A  592  UNP  P18858    GLU   592 CONFLICT                       
SEQADV 7SX5 ALA A  919  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 ALA A  920  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 ALA A  921  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 LEU A  922  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 GLU A  923  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 HIS A  924  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 HIS A  925  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 HIS A  926  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 HIS A  927  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 HIS A  928  UNP  P18858              EXPRESSION TAG                 
SEQADV 7SX5 HIS A  929  UNP  P18858              EXPRESSION TAG                 
SEQRES   1 A  669  LEU ASP PRO SER GLY TYR ASN PRO ALA LYS ASN ASN TYR          
SEQRES   2 A  669  HIS PRO VAL GLU ASP ALA CYS TRP LYS PRO GLY GLN LYS          
SEQRES   3 A  669  VAL PRO TYR LEU ALA VAL ALA ARG THR PHE GLU LYS ILE          
SEQRES   4 A  669  GLU GLU VAL SER ALA ARG LEU ARG MET VAL GLU THR LEU          
SEQRES   5 A  669  SER ASN LEU LEU ARG SER VAL VAL ALA LEU SER PRO PRO          
SEQRES   6 A  669  ASP LEU LEU PRO VAL LEU TYR LEU SER LEU ASN HIS LEU          
SEQRES   7 A  669  GLY PRO PRO GLN GLN GLY LEU ALA LEU GLY VAL GLY ASP          
SEQRES   8 A  669  GLY VAL LEU LEU LYS ALA VAL ALA GLN ALA THR GLY ARG          
SEQRES   9 A  669  GLN LEU GLU SER VAL ARG ALA GLU ALA ALA GLU LYS GLY          
SEQRES  10 A  669  ASP VAL GLY LEU VAL ALA GLU ASN SER ARG SER THR GLN          
SEQRES  11 A  669  ARG LEU MET LEU PRO PRO PRO PRO LEU THR ALA SER GLY          
SEQRES  12 A  669  VAL PHE SER LYS PHE ARG ASP ILE ALA ARG LEU THR GLY          
SEQRES  13 A  669  SER ALA SER THR ALA LYS LYS ILE ASP ILE ILE LYS GLY          
SEQRES  14 A  669  LEU PHE VAL ALA CYS ARG HIS SER GLU ALA ARG PHE ILE          
SEQRES  15 A  669  ALA ARG SER LEU SER GLY ARG LEU ARG LEU GLY LEU ALA          
SEQRES  16 A  669  GLU GLN SER VAL LEU ALA ALA LEU SER GLN ALA VAL SER          
SEQRES  17 A  669  LEU THR PRO PRO GLY GLN GLU PHE PRO PRO ALA MET VAL          
SEQRES  18 A  669  ASP ALA GLY LYS GLY LYS THR ALA GLU ALA ARG LYS THR          
SEQRES  19 A  669  TRP LEU GLU GLU GLN GLY MET ILE LEU LYS GLN THR PHE          
SEQRES  20 A  669  CYS GLU VAL PRO ASP LEU ASP ARG ILE ILE PRO VAL LEU          
SEQRES  21 A  669  LEU GLU HIS GLY LEU GLU ARG LEU PRO GLU HIS CYS LYS          
SEQRES  22 A  669  LEU SER PRO GLY ILE PRO LEU LYS PRO MET LEU ALA HIS          
SEQRES  23 A  669  PRO THR ARG GLY ILE SER GLU VAL LEU LYS ARG PHE GLU          
SEQRES  24 A  669  GLU ALA ALA PHE THR CYS GLU TYR LYS TYR ASP GLY GLN          
SEQRES  25 A  669  ARG ALA GLN ILE HIS ALA LEU GLU GLY GLY GLU VAL LYS          
SEQRES  26 A  669  ILE PHE SER ARG ASN GLN ALA ASP ASN THR GLY LYS TYR          
SEQRES  27 A  669  PRO ASP ILE ILE SER ARG ILE PRO LYS ILE LYS LEU PRO          
SEQRES  28 A  669  SER VAL THR SER PHE ILE LEU ASP THR GLU ALA VAL ALA          
SEQRES  29 A  669  TRP ASP ARG GLU LYS LYS GLN ILE GLN PRO PHE GLN VAL          
SEQRES  30 A  669  LEU THR THR ARG LYS ARG LYS GLU VAL ASP ALA SER GLU          
SEQRES  31 A  669  ILE GLN VAL GLN VAL CYS LEU TYR ALA PHE ASP LEU ILE          
SEQRES  32 A  669  TYR LEU ASN GLY GLU SER LEU VAL ARG GLU PRO LEU SER          
SEQRES  33 A  669  ARG ARG ARG GLN LEU LEU ARG GLU ASN PHE VAL GLU THR          
SEQRES  34 A  669  GLU GLY GLU PHE VAL PHE ALA THR SER LEU ASP THR LYS          
SEQRES  35 A  669  ASP ILE GLU GLN ILE ALA GLU PHE LEU GLU GLN SER VAL          
SEQRES  36 A  669  LYS ASP SER CYS GLU GLY LEU MET VAL LYS THR LEU ASP          
SEQRES  37 A  669  VAL ASP ALA THR TYR GLU ILE ALA LYS ARG SER HIS ASN          
SEQRES  38 A  669  TRP LEU LYS LEU LYS LYS ASP TYR LEU ASP GLY VAL GLY          
SEQRES  39 A  669  ASP THR LEU ASP LEU VAL VAL ILE GLY ALA TYR LEU GLY          
SEQRES  40 A  669  ARG GLY LYS ARG ALA GLY ARG TYR GLY GLY PHE LEU LEU          
SEQRES  41 A  669  ALA SER TYR ASP GLU ASP SER GLU GLU LEU GLN ALA ILE          
SEQRES  42 A  669  CYS LYS LEU GLY THR GLY PHE SER ASP GLU GLU LEU GLU          
SEQRES  43 A  669  GLU HIS HIS GLN SER LEU LYS ALA LEU VAL LEU PRO SER          
SEQRES  44 A  669  PRO ARG PRO TYR VAL ARG ILE ASP GLY ALA VAL ILE PRO          
SEQRES  45 A  669  ASP HIS TRP LEU ASP PRO SER ALA VAL TRP GLU VAL LYS          
SEQRES  46 A  669  CYS ALA ASP LEU SER LEU SER PRO ILE TYR PRO ALA ALA          
SEQRES  47 A  669  ARG GLY LEU VAL ASP SER ASP LYS GLY ILE SER LEU ARG          
SEQRES  48 A  669  PHE PRO ARG PHE ILE ARG VAL ARG GLU ASP LYS GLN PRO          
SEQRES  49 A  669  GLU GLN ALA THR THR SER ALA GLN VAL ALA CYS LEU TYR          
SEQRES  50 A  669  ARG LYS GLN SER GLN ILE GLN ASN GLN GLN GLY GLU ASP          
SEQRES  51 A  669  SER GLY SER ASP PRO GLU ASP THR ALA ALA ALA LEU GLU          
SEQRES  52 A  669  HIS HIS HIS HIS HIS HIS                                      
SEQRES   1 B   11   DG  DC  DT  DG  DA  DT  DG  DC  DG  DT  DA                  
SEQRES   1 C    7   DG  DT  DC  DG  DG  DA  DC                                  
SEQRES   1 D   18   DG  DT  DC  DC  DG  DA  DC  DC  DA  DC  DG  DC  DA          
SEQRES   2 D   18   DT  DC  DA  DG  DC                                          
HET    AMP  A1001      22                                                       
HETNAM     AMP ADENOSINE MONOPHOSPHATE                                          
FORMUL   5  AMP    C10 H14 N5 O7 P                                              
FORMUL   6  HOH   *182(H2 O)                                                    
HELIX    1 AA1 ASP A  262  TYR A  266  5                                   5    
HELIX    2 AA2 PRO A  288  GLU A  301  1                                  14    
HELIX    3 AA3 ALA A  304  LEU A  322  1                                  19    
HELIX    4 AA4 SER A  323  PRO A  325  5                                   3    
HELIX    5 AA5 ASP A  326  ASN A  336  1                                  11    
HELIX    6 AA6 PRO A  340  GLY A  344  5                                   5    
HELIX    7 AA7 GLY A  350  GLY A  363  1                                  14    
HELIX    8 AA8 GLN A  365  GLU A  375  1                                  11    
HELIX    9 AA9 VAL A  379  SER A  386  1                                   8    
HELIX   10 AB1 THR A  400  LEU A  414  1                                  15    
HELIX   11 AB2 ALA A  418  ALA A  433  1                                  16    
HELIX   12 AB3 SER A  437  SER A  447  1                                  11    
HELIX   13 AB4 ALA A  455  THR A  470  1                                  16    
HELIX   14 AB5 THR A  488  VAL A  510  1                                  23    
HELIX   15 AB6 ASP A  512  GLY A  524  1                                  13    
HELIX   16 AB7 LEU A  525  HIS A  531  5                                   7    
HELIX   17 AB8 GLY A  550  GLU A  559  1                                  10    
HELIX   18 AB9 ASN A  594  LYS A  597  5                                   4    
HELIX   19 AC1 TYR A  598  ILE A  605  1                                   8    
HELIX   20 AC2 PRO A  606  ILE A  608  5                                   3    
HELIX   21 AC3 PRO A  634  THR A  639  1                                   6    
HELIX   22 AC4 ASP A  647  ILE A  651  5                                   5    
HELIX   23 AC5 PRO A  674  PHE A  686  1                                  13    
HELIX   24 AC6 GLU A  705  ASP A  717  1                                  13    
HELIX   25 AC7 SER A  801  LYS A  813  1                                  13    
HELIX   26 AC8 GLN A  883  ALA A  887  5                                   5    
HELIX   27 AC9 THR A  889  GLN A  900  1                                  12    
SHEET    1 AA1 5 LEU A 544  PRO A 547  0                                        
SHEET    2 AA1 5 HIS A 740  LEU A 745  1  O  LYS A 744   N  HIS A 546           
SHEET    3 AA1 5 GLY A 721  THR A 726 -1  N  LEU A 722   O  LEU A 745           
SHEET    4 AA1 5 PHE A 563  LYS A 568 -1  N  GLU A 566   O  MET A 723           
SHEET    5 AA1 5 SER A 698  ASP A 700 -1  O  LEU A 699   N  CYS A 565           
SHEET    1 AA2 5 VAL A 584  PHE A 587  0                                        
SHEET    2 AA2 5 GLN A 572  ALA A 578 -1  N  GLN A 575   O  PHE A 587           
SHEET    3 AA2 5 PHE A 616  ASP A 626 -1  O  ALA A 622   N  GLN A 572           
SHEET    4 AA2 5 ASP A 661  LEU A 665 -1  O  ILE A 663   N  ILE A 617           
SHEET    5 AA2 5 GLU A 668  SER A 669 -1  O  GLU A 668   N  LEU A 665           
SHEET    1 AA3 4 GLN A 631  ILE A 632  0                                        
SHEET    2 AA3 4 PHE A 616  ASP A 626 -1  N  ASP A 626   O  GLN A 631           
SHEET    3 AA3 4 VAL A 655  ALA A 659 -1  O  CYS A 656   N  VAL A 623           
SHEET    4 AA3 4 PHE A 693  PHE A 695  1  O  VAL A 694   N  ALA A 659           
SHEET    1 AA4 6 VAL A 816  LEU A 817  0                                        
SHEET    2 AA4 6 HIS A 834  LYS A 845 -1  O  TRP A 835   N  LEU A 817           
SHEET    3 AA4 6 LEU A 757  LEU A 766 -1  N  LEU A 757   O  VAL A 844           
SHEET    4 AA4 6 TYR A 775  ASP A 784 -1  O  ALA A 781   N  VAL A 760           
SHEET    5 AA4 6 GLU A 789  LEU A 796 -1  O  GLU A 789   N  ASP A 784           
SHEET    6 AA4 6 VAL A 824  ARG A 825  1  O  ARG A 825   N  LEU A 790           
SHEET    1 AA5 3 VAL A 816  LEU A 817  0                                        
SHEET    2 AA5 3 HIS A 834  LYS A 845 -1  O  TRP A 835   N  LEU A 817           
SHEET    3 AA5 3 ARG A 874  VAL A 878 -1  O  ARG A 877   N  GLU A 843           
SHEET    1 AA6 2 LEU A 849  SER A 852  0                                        
SHEET    2 AA6 2 GLY A 867  LEU A 870 -1  O  SER A 869   N  SER A 850           
CISPEP   1 PHE A  476    PRO A  477          0       -11.08                     
CRYST1   63.755  116.407  126.012  90.00  90.00  90.00 P 21 21 21    4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.015685  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.008591  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007936        0.00000