HEADER    IMMUNE SYSTEM/DNA                       15-NOV-01   1KEG              
TITLE     ANTIBODY 64M-2 FAB COMPLEXED WITH DTT(6-4)TT                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 5'-D(*TP*(64T)P*TP*T)-3';                                  
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: ANTI-(6-4) PHOTOPRODUCT ANTIBODY 64M-2 FAB (LIGHT CHAIN);  
COMPND   7 CHAIN: L;                                                            
COMPND   8 MOL_ID: 3;                                                           
COMPND   9 MOLECULE: ANTI-(6-4) PHOTOPRODUCT ANTIBODY 64M-2 FAB (HEAVY CHAIN);  
COMPND  10 CHAIN: H                                                             
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: THE CHAIN WAS SYNTHESIZED BY COUPLING THYMIDINES TO   
SOURCE   4 BOTH SIDES OF DT(6-4)T WHICH WAS PURIFIED FROM ULTRAVIOLET-RADIATED  
SOURCE   5 DTPT.;                                                               
SOURCE   6 MOL_ID: 2;                                                           
SOURCE   7 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE   8 ORGANISM_COMMON: MOUSE;                                              
SOURCE   9 ORGANISM_TAXID: 10090;                                               
SOURCE  10 STRAIN: BALB/C;                                                      
SOURCE  11 CELL_LINE: HYBRIDOMA;                                                
SOURCE  12 MOL_ID: 3;                                                           
SOURCE  13 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE  14 ORGANISM_COMMON: MOUSE;                                              
SOURCE  15 ORGANISM_TAXID: 10090;                                               
SOURCE  16 STRAIN: BALB/C;                                                      
SOURCE  17 CELL_LINE: HYBRIDOMA                                                 
KEYWDS    PROTEIN-DNA COMPLEX, DNA PHOTOPRODUCT, IMMUNOGLOBULIN, IMMUNE SYSTEM- 
KEYWDS   2 DNA COMPLEX                                                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.YOKOYAMA,R.MIZUTANI,Y.SATOW,K.SATO,Y.KOMATSU,E.OHTSUKA,O.NIKAIDO    
REVDAT   6   20-NOV-24 1KEG    1       REMARK                                   
REVDAT   5   16-AUG-23 1KEG    1       REMARK LINK                              
REVDAT   4   28-MAR-12 1KEG    1       JRNL                                     
REVDAT   3   29-FEB-12 1KEG    1       JRNL   VERSN                             
REVDAT   2   24-FEB-09 1KEG    1       VERSN                                    
REVDAT   1   15-NOV-02 1KEG    0                                                
JRNL        AUTH   H.YOKOYAMA,R.MIZUTANI,Y.SATOW,K.SATO,Y.KOMATSU,E.OHTSUKA,    
JRNL        AUTH 2 O.NIKAIDO                                                    
JRNL        TITL   STRUCTURE OF THE DNA (6-4) PHOTOPRODUCT DTT(6-4)TT IN        
JRNL        TITL 2 COMPLEX WITH THE 64M-2 ANTIBODY FAB FRAGMENT IMPLIES         
JRNL        TITL 3 INCREASED ANTIBODY-BINDING AFFINITY BY THE FLANKING          
JRNL        TITL 4 NUCLEOTIDES.                                                 
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  68   232 2012              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   22349224                                                     
JRNL        DOI    10.1107/S0907444912000327                                    
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   H.YOKOYAMA,R.MIZUTANI,Y.SATOW,Y.KOMATSU,E.OHTSUKA,O.NIKAIDO  
REMARK   1  TITL   CRYSTAL STRUCTURE OF THE 64M-2 ANTIBODY FAB FRAGMENT IN      
REMARK   1  TITL 2 COMPLEX WITH A DNA DT(6-4)T PHOTOPRODUCT FORMED BY           
REMARK   1  TITL 3 ULTRAVIOLET RADIATION                                        
REMARK   1  REF    J.MOL.BIOL.                   V. 299   711 2000              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1  DOI    10.1006/JMBI.2000.3772                                       
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   T.MORI,M.NAKANE,T.HATTORI,T.MATSUNAGA,M.IHARA,O.NIKAIDO      
REMARK   1  TITL   SIMULTANEOUS ESTABLISHMENT OF MONOCLONAL ANTIBODIES SPECIFIC 
REMARK   1  TITL 2 FOR EITHER CYCLOBUTANE PYRIMIDINE DIMER OR (6-4)PHOTOPRODUCT 
REMARK   1  TITL 3 FROM THE SAME MOUSE IMMUNIZED ULTRAVIOLET-IRRADIATED DNA     
REMARK   1  REF    PHOTOCHEM.PHOTOBIOL.          V.  54   225 1991              
REMARK   1  REFN                   ISSN 0031-8655                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.843                                         
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 86.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 17221                          
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) : 0.201                           
REMARK   3   FREE R VALUE                     : 0.268                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 1740                            
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           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.40                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.49                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 29.00                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2760                       
REMARK   3   BIN FREE R VALUE                    : 0.3920                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 10.50                        
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 62                           
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            : 3308                                    
REMARK   3   NUCLEIC ACID ATOMS       : 77                                      
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 70                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 36.20                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 22.00                          
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) : 0.29                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.32                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.29                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.34                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.008                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.440                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : ISOTROPIC                                 
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  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1KEG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-NOV-01.                  
REMARK 100 THE DEPOSITION ID IS D_1000014867.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-JAN-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 277                                
REMARK 200  PH                             : 8.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : MACSCIENCE                         
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 17570                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 29.600                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 92.0                               
REMARK 200  DATA REDUNDANCY                : 5.000                              
REMARK 200  R MERGE                    (I) : 0.07700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 21.8000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.49                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 85.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.30400                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.000                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1EHL                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 52.22                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.57                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, NICKEL CHLORIDE, TRIS-HCL,     
REMARK 280  PH 8.5, VAPOR DIFFUSION, 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       36.78350            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       24.80750            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       68.63700            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       24.80750            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       36.78350            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       68.63700            
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: TRIMERIC                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, L, H                               
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     GLY H   131                                                      
REMARK 465     ASP H   132                                                      
REMARK 465     THR H   133                                                      
REMARK 465     THR H   134                                                      
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     SER L   22   OG                                                  
REMARK 480     SER L   67   OG                                                  
REMARK 480     THR L   69   OG1  CG2                                            
REMARK 480     SER L  122   OG                                                  
REMARK 480     LYS L  147   CG   CD   CE   NZ                                   
REMARK 480     ASN L  157   CG   OD1  ND2                                       
REMARK 480     ASP L  184   CG   OD1  OD2                                       
REMARK 480     SER L  208   OG                                                  
REMARK 480     ASN L  212   CG   OD1  ND2                                       
REMARK 480     GLU H    1   CG   CD   OE1  OE2                                  
REMARK 480     GLN H   43   CG   CD   OE1  NE2                                  
REMARK 480     SER H   55   OG                                                  
REMARK 480     ASN H   84   CG   OD1  ND2                                       
REMARK 480     LYS H   99   CG   CD   CE   NZ                                   
REMARK 480     LYS H  115   CG   CD   CE   NZ                                   
REMARK 480     CYS H  128   SG                                                  
REMARK 480     GLN H  179   CG   CD   OE1  NE2                                  
REMARK 480     SER H  180   OG                                                  
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500     DT A   3   N1  -  C2  -  N3  ANGL. DEV. =   3.9 DEGREES          
REMARK 500     DT A   3   C2  -  N3  -  C4  ANGL. DEV. =  -8.5 DEGREES          
REMARK 500     DT A   3   N3  -  C4  -  C5  ANGL. DEV. =   8.9 DEGREES          
REMARK 500     DT A   3   C4  -  C5  -  C7  ANGL. DEV. =   7.2 DEGREES          
REMARK 500     DT A   3   C6  -  C5  -  C7  ANGL. DEV. =  -4.6 DEGREES          
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    VAL L  51      -51.27     67.86                                   
REMARK 500    ASP L  60        2.48    -67.78                                   
REMARK 500    LEU L  93      -93.70     67.33                                   
REMARK 500    ALA L 130       88.08   -151.75                                   
REMARK 500    ASN L 138       61.11     39.50                                   
REMARK 500    LYS H  66      -50.74   -159.35                                   
REMARK 500    ALA H  88     -179.46    177.27                                   
REMARK 500    LYS H  99      -84.23     93.20                                   
REMARK 500    PRO H 126      155.86    -49.71                                   
REMARK 500    GLN H 179       78.89   -115.91                                   
REMARK 500    SER H 180       67.93     69.46                                   
REMARK 500    ASP H 183       -7.49     70.12                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600 THERE IS A C6-C4 BOND  BETWEEN 64T RESIDUE                           
REMARK 600 2 AND T RESIDUE 3 OF CHAIN A.                                        
REMARK 600 THE 64T LINKED TO T IS REFERRED TO AS DT(6-4)T.                      
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                              NI L 213  NI                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP L   1   OD1                                                    
REMARK 620 2 ASP L   1   O    80.8                                              
REMARK 620 3 ASP L   1   N    80.8  84.0                                        
REMARK 620 4 HIS L 189   NE2  83.9 161.8  83.9                                  
REMARK 620 N                    1     2     3                                   
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI L 213                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1EHL   RELATED DB: PDB                                   
REMARK 900 1EHL CONTAINS THE SAME PROTEIN.                                      
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE NUCLEOTIDE SEQUENCES WHICH ENCODE                                
REMARK 999 FOR CHAINS L AND H ARE LISTED IN GB                                  
REMARK 999 ENTRIES E08525 (22-330) AND E08524                                   
REMARK 999 (7-330) RESPECTIVELY.                                                
REMARK 999 THE RESIDUE NUMBERING OF CHAINS L AND                                
REMARK 999 H IS NON-SEQUENTIAL.                                                 
DBREF  1KEG A    1     4  PDB    1KEG     1KEG             1      4             
DBREF  1KEG L    1   212  PDB    1KEG     1KEG             1    212             
DBREF  1KEG H    1   228  PDB    1KEG     1KEG             1    228             
SEQRES   1 A    4   DT 64T  DT  DT                                              
SEQRES   1 L  216  ASP VAL LEU MET THR GLN THR PRO LEU SER LEU PRO VAL          
SEQRES   2 L  216  SER LEU GLY ASP GLN ALA SER ILE SER CYS ARG SER SER          
SEQRES   3 L  216  GLN SER ILE VAL HIS SER ASN GLY ASN THR TYR LEU GLU          
SEQRES   4 L  216  TRP TYR LEU GLN LYS PRO GLY GLN SER PRO LYS LEU LEU          
SEQRES   5 L  216  ILE TYR LYS VAL SER ASN ARG PHE SER GLY VAL PRO ASP          
SEQRES   6 L  216  ARG PHE SER GLY SER GLY SER GLY THR ASP PHE THR LEU          
SEQRES   7 L  216  LYS ILE SER ARG VAL GLU ALA GLU ASP LEU GLY VAL TYR          
SEQRES   8 L  216  TYR CYS PHE GLN GLY SER LEU VAL PRO THR PHE GLY GLY          
SEQRES   9 L  216  GLY THR LYS LEU GLU ILE LYS ARG ALA ASP ALA ALA PRO          
SEQRES  10 L  216  THR VAL SER ILE PHE PRO PRO SER SER GLU GLN LEU THR          
SEQRES  11 L  216  SER GLY GLY ALA SER VAL VAL CYS PHE LEU ASN ASN PHE          
SEQRES  12 L  216  TYR PRO LYS ASP ILE ASN VAL LYS TRP LYS ILE ASP GLY          
SEQRES  13 L  216  SER GLU ARG GLN ASN GLY VAL LEU ASN SER TRP THR ASP          
SEQRES  14 L  216  GLN ASP SER LYS ASP SER THR TYR SER MET SER SER THR          
SEQRES  15 L  216  LEU THR LEU THR LYS ASP GLU TYR GLU ARG HIS ASN SER          
SEQRES  16 L  216  TYR THR CYS GLU ALA THR HIS LYS THR SER THR SER PRO          
SEQRES  17 L  216  ILE VAL LYS SER PHE ASN ARG ASN                              
SEQRES   1 H  220  GLU VAL GLN LEU GLN GLN SER GLY THR VAL LEU ALA ARG          
SEQRES   2 H  220  PRO GLY ALA SER VAL LYS MET SER CYS LYS ALA SER GLY          
SEQRES   3 H  220  TYR SER PHE THR SER PHE TRP MET HIS TRP VAL LYS GLN          
SEQRES   4 H  220  ARG PRO GLY GLN GLY LEU GLU TRP ILE GLY THR ILE TYR          
SEQRES   5 H  220  PRO GLY ASN SER ASP THR SER TYR ASN GLN LYS PHE LYS          
SEQRES   6 H  220  GLY LYS ALA LYS LEU THR ALA VAL THR SER ALA SER THR          
SEQRES   7 H  220  ALA TYR MET GLU VAL SER SER LEU THR ASN GLU ASP SER          
SEQRES   8 H  220  ALA VAL TYR TYR CYS THR ARG ARG SER GLY TYR LYS TYR          
SEQRES   9 H  220  TYR ALA LEU ASP TYR TRP GLY GLN GLY THR SER VAL THR          
SEQRES  10 H  220  VAL SER SER ALA LYS THR THR ALA PRO SER VAL TYR PRO          
SEQRES  11 H  220  LEU ALA PRO VAL CYS GLY ASP THR THR GLY SER SER VAL          
SEQRES  12 H  220  THR LEU GLY CYS LEU VAL LYS GLY TYR PHE PRO GLU PRO          
SEQRES  13 H  220  VAL THR LEU THR TRP ASN SER GLY SER LEU SER SER GLY          
SEQRES  14 H  220  VAL HIS THR PHE PRO ALA VAL LEU GLN SER ASP LEU TYR          
SEQRES  15 H  220  THR LEU SER SER SER VAL THR VAL THR SER SER THR TRP          
SEQRES  16 H  220  PRO SER GLN SER ILE THR CYS ASN VAL ALA HIS PRO ALA          
SEQRES  17 H  220  SER SER THR LYS VAL ASP LYS LYS ILE GLU PRO ARG              
MODRES 1KEG 64T A    2   DT  5-HYDROXY-THYMIDINE-5'-MONOPHOSPHATE               
HET    64T  A   2      21                                                       
HET     NI  L 213       1                                                       
HETNAM     64T 5-HYDROXY-THYMIDINE-5'-MONOPHOSPHATE                             
HETNAM      NI NICKEL (II) ION                                                  
FORMUL   1  64T    C10 H17 N2 O9 P                                              
FORMUL   4   NI    NI 2+                                                        
FORMUL   5  HOH   *70(H2 O)                                                     
HELIX    1   1 GLU L   79  LEU L   83  5                                   5    
HELIX    2   2 SER L  121  THR L  126  1                                   6    
HELIX    3   3 LYS L  183  ARG L  188  1                                   6    
HELIX    4   4 SER H   28  PHE H   32  5                                   5    
HELIX    5   5 GLN H   61  LYS H   64  5                                   4    
HELIX    6   6 THR H   83  SER H   87  5                                   5    
HELIX    7   7 SER H  163  SER H  165  5                                   3    
HELIX    8   8 PRO H  213  SER H  216  5                                   4    
SHEET    1   A 4 MET L   4  THR L   7  0                                        
SHEET    2   A 4 ALA L  19  SER L  25 -1  O  ARG L  24   N  THR L   5           
SHEET    3   A 4 ASP L  70  ILE L  75 -1  O  ILE L  75   N  ALA L  19           
SHEET    4   A 4 PHE L  62  SER L  67 -1  N  SER L  63   O  LYS L  74           
SHEET    1   B 5 ASN L  53  ARG L  54  0                                        
SHEET    2   B 5 LYS L  45  TYR L  49 -1  N  TYR L  49   O  ASN L  53           
SHEET    3   B 5 LEU L  33  GLN L  38 -1  N  TRP L  35   O  LEU L  47           
SHEET    4   B 5 GLY L  84  GLN L  90 -1  O  PHE L  89   N  GLU L  34           
SHEET    5   B 5 THR L  97  PHE L  98 -1  O  THR L  97   N  GLN L  90           
SHEET    1   C 6 ASN L  53  ARG L  54  0                                        
SHEET    2   C 6 LYS L  45  TYR L  49 -1  N  TYR L  49   O  ASN L  53           
SHEET    3   C 6 LEU L  33  GLN L  38 -1  N  TRP L  35   O  LEU L  47           
SHEET    4   C 6 GLY L  84  GLN L  90 -1  O  PHE L  89   N  GLU L  34           
SHEET    5   C 6 THR L 102  ILE L 106 -1  O  LEU L 104   N  GLY L  84           
SHEET    6   C 6 SER L  10  VAL L  13  1  N  LEU L  11   O  LYS L 103           
SHEET    1   D 4 THR L 114  PHE L 118  0                                        
SHEET    2   D 4 GLY L 129  PHE L 139 -1  O  VAL L 133   N  PHE L 118           
SHEET    3   D 4 TYR L 173  THR L 182 -1  O  LEU L 179   N  VAL L 132           
SHEET    4   D 4 VAL L 159  TRP L 163 -1  N  LEU L 160   O  THR L 178           
SHEET    1   E 4 SER L 153  ARG L 155  0                                        
SHEET    2   E 4 ASN L 145  ILE L 150 -1  N  ILE L 150   O  SER L 153           
SHEET    3   E 4 SER L 191  THR L 197 -1  O  THR L 193   N  LYS L 149           
SHEET    4   E 4 ILE L 205  ASN L 210 -1  O  ILE L 205   N  ALA L 196           
SHEET    1   F 4 GLN H   3  GLN H   6  0                                        
SHEET    2   F 4 VAL H  18  SER H  25 -1  O  LYS H  23   N  GLN H   5           
SHEET    3   F 4 THR H  77  VAL H  82 -1  O  MET H  80   N  MET H  20           
SHEET    4   F 4 ALA H  67  VAL H  72 -1  N  VAL H  72   O  THR H  77           
SHEET    1   G 5 ASP H  56  TYR H  59  0                                        
SHEET    2   G 5 GLU H  46  TYR H  52 -1  N  THR H  50   O  SER H  58           
SHEET    3   G 5 MET H  34  GLN H  39 -1  N  LYS H  38   O  GLU H  46           
SHEET    4   G 5 ALA H  88  ARG H  94 -1  O  THR H  93   N  HIS H  35           
SHEET    5   G 5 TYR H 102  TRP H 103 -1  O  TYR H 102   N  ARG H  94           
SHEET    1   H 6 ASP H  56  TYR H  59  0                                        
SHEET    2   H 6 GLU H  46  TYR H  52 -1  N  THR H  50   O  SER H  58           
SHEET    3   H 6 MET H  34  GLN H  39 -1  N  LYS H  38   O  GLU H  46           
SHEET    4   H 6 ALA H  88  ARG H  94 -1  O  THR H  93   N  HIS H  35           
SHEET    5   H 6 THR H 107  VAL H 111 -1  O  VAL H 109   N  ALA H  88           
SHEET    6   H 6 VAL H  10  ALA H  12  1  N  ALA H  12   O  THR H 110           
SHEET    1   I 4 SER H 120  LEU H 124  0                                        
SHEET    2   I 4 SER H 137  TYR H 147 -1  O  LEU H 143   N  TYR H 122           
SHEET    3   I 4 TYR H 185  THR H 194 -1  O  VAL H 193   N  VAL H 138           
SHEET    4   I 4 VAL H 171  LEU H 178 -1  N  HIS H 172   O  SER H 190           
SHEET    1   J 3 THR H 153  TRP H 157  0                                        
SHEET    2   J 3 THR H 206  HIS H 212 -1  O  ASN H 209   N  THR H 156           
SHEET    3   J 3 THR H 217  LYS H 222 -1  O  LYS H 221   N  CYS H 208           
SSBOND   1 CYS L   23    CYS L   88                          1555   1555  2.02  
SSBOND   2 CYS L  134    CYS L  194                          1555   1555  2.03  
SSBOND   3 CYS H   22    CYS H   92                          1555   1555  2.03  
SSBOND   4 CYS H  142    CYS H  208                          1555   1555  2.02  
LINK         O3'  DT A   1                 P   64T A   2     1555   1555  1.61  
LINK         C6  64T A   2                 C4   DT A   3     1555   1555  1.54  
LINK         O3' 64T A   2                 P    DT A   3     1555   1555  1.61  
LINK         OD1 ASP L   1                NI    NI L 213     1555   1555  2.24  
LINK         O   ASP L   1                NI    NI L 213     1555   1555  2.19  
LINK         N   ASP L   1                NI    NI L 213     1555   1555  1.89  
LINK         NE2 HIS L 189                NI    NI L 213     2565   1555  2.24  
CISPEP   1 THR L    7    PRO L    8          0        -0.38                     
CISPEP   2 TYR L  140    PRO L  141          0         0.04                     
CISPEP   3 PHE H  148    PRO H  149          0        -0.39                     
CISPEP   4 GLU H  150    PRO H  151          0         0.10                     
CISPEP   5 TRP H  199    PRO H  200          0         0.42                     
SITE     1 AC1  2 ASP L   1  HIS L 189                                          
CRYST1   73.567  137.274   49.615  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      0.013593  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007285  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.020155        0.00000