HEADER    GENE REGULATION                         13-SEP-00   1FU1              
TITLE     CRYSTAL STRUCTURE OF HUMAN XRCC4                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA REPAIR PROTEIN XRCC4;                                  
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: N-TERMINAL DOMAIN, RESIDUES 1-203;                         
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 TISSUE: NON-TISSUE SPECIFIC;                                         
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PACYC154                                  
KEYWDS    HELIX-TURN-HELIX, HELIX BUNDLE, GENE REGULATION                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.JUNOP,M.MODESTI,A.GUARNE,M.GELLERT,W.YANG                           
REVDAT   6   06-NOV-24 1FU1    1       REMARK                                   
REVDAT   5   03-NOV-21 1FU1    1       REMARK SEQADV LINK                       
REVDAT   4   13-JUL-11 1FU1    1       VERSN                                    
REVDAT   3   24-FEB-09 1FU1    1       VERSN                                    
REVDAT   2   01-APR-03 1FU1    1       JRNL                                     
REVDAT   1   11-DEC-00 1FU1    0                                                
JRNL        AUTH   M.S.JUNOP,M.MODESTI,A.GUARNE,R.GHIRLANDO,M.GELLERT,W.YANG    
JRNL        TITL   CRYSTAL STRUCTURE OF THE XRCC4 DNA REPAIR PROTEIN AND        
JRNL        TITL 2 IMPLICATIONS FOR END JOINING.                                
JRNL        REF    EMBO J.                       V.  19  5962 2000              
JRNL        REFN                   ISSN 0261-4189                               
JRNL        PMID   11080143                                                     
JRNL        DOI    10.1093/EMBOJ/19.22.5962                                     
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 0.9                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 29.93                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1150054.700                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 28110                          
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) : 0.231                           
REMARK   3   FREE R VALUE                     : 0.263                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 9.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2791                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.005                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.70                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.87                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 96.50                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 4108                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3880                       
REMARK   3   BIN FREE R VALUE                    : 0.4110                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 10.20                        
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 468                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.019                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3100                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 16                                      
REMARK   3   SOLVENT ATOMS            : 61                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 71.20                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 73.10                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -4.24000                                             
REMARK   3    B22 (A**2) : 3.72000                                              
REMARK   3    B33 (A**2) : 0.52000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 21.61000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.37                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.52                            
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) : 0.43                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.56                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.200                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 22.70                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.700                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 3.730 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 5.800 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 5.830 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 8.430 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.33                                                 
REMARK   3   BSOL        : 65.00                                                
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  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARA                                 
REMARK   3  PARAMETER FILE  3  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  4  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER_REP.TOP                                  
REMARK   3  TOPOLOGY FILE  3   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  4   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: MAXIMUM LIKELIHOOD USING INTENSITIES      
REMARK   4                                                                      
REMARK   4 1FU1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-OCT-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000011899.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-FEB-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 95                                 
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                       : X9B                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.979                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
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   : 31338                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.190                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.1                               
REMARK 200  DATA REDUNDANCY                : 13.70                              
REMARK 200  R MERGE                    (I) : 0.05000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 21.0300                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.64                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 95.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.40                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.40800                            
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: NULL                         
REMARK 200 SOFTWARE USED: SOLVE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): NULL                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): NULL                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, MAGNESIUM ACETATE,    
REMARK 280  DTT, CACODYLATE, PH 6.5, VAPOR DIFFUSION, HANGING DROP,             
REMARK 280  TEMPERATURE 293.0K                                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
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       82.44600            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       37.39650            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       82.44600            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       37.39650            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A TETRAMER CONSTRUCTED FROM       
REMARK 300 CHAINS A AND B AND THEIR SYMMETRY PARTNERS GENERATED BY A            
REMARK 300 CRYSTALLOGRAPHIC TWO-FOLD                                            
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: 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 350   BIOMT1   2 -1.000000  0.000000  0.000000       61.36888            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000      -37.39650            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       84.72466            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 12080 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 41760 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -98.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000      164.89200            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  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     ARG A   179                                                      
REMARK 465     PHE A   180                                                      
REMARK 465     ILE A   181                                                      
REMARK 465     LEU A   182                                                      
REMARK 465     VAL A   183                                                      
REMARK 465     LEU A   184                                                      
REMARK 465     ASN A   185                                                      
REMARK 465     GLU A   186                                                      
REMARK 465     LYS A   187                                                      
REMARK 465     LYS A   188                                                      
REMARK 465     THR A   189                                                      
REMARK 465     LYS A   190                                                      
REMARK 465     ILE A   191                                                      
REMARK 465     ARG A   192                                                      
REMARK 465     SER A   193                                                      
REMARK 465     LEU A   194                                                      
REMARK 465     HIS A   195                                                      
REMARK 465     ASN A   196                                                      
REMARK 465     LYS A   197                                                      
REMARK 465     LEU A   198                                                      
REMARK 465     LEU A   199                                                      
REMARK 465     ASN A   200                                                      
REMARK 465     ALA A   201                                                      
REMARK 465     ALA A   202                                                      
REMARK 465     GLN A   203                                                      
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    GLU A  25      -83.81    -80.46                                   
REMARK 500    HIS A  40      -56.96   -131.00                                   
REMARK 500    LYS A  90       23.77    -79.87                                   
REMARK 500    GLU A  91      -48.99   -133.55                                   
REMARK 500    ASP A 103      -13.24     84.74                                   
REMARK 500    SER A 110      141.78    178.23                                   
REMARK 500    ALA A 171      -80.12    -98.82                                   
REMARK 500    LEU A 172      -45.76    -24.86                                   
REMARK 500    ASP A 175     -114.69   -102.35                                   
REMARK 500    LEU A 176      -52.82     -2.11                                   
REMARK 500    TYR A 177       70.37   -102.94                                   
REMARK 500    GLU B 425      -76.21    -86.17                                   
REMARK 500    LYS B 426      -66.98    -99.68                                   
REMARK 500    ASP B 503       -2.23     70.72                                   
REMARK 500    LEU B 594      -81.47    -85.82                                   
REMARK 500    HIS B 595      -35.03    -25.71                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 502                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 503                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 504                 
DBREF  1FU1 A    1   203  UNP    Q13426   XRCC4_HUMAN      1    203             
DBREF  1FU1 B  401   603  UNP    Q13426   XRCC4_HUMAN      1    203             
SEQADV 1FU1 CAS A   93  UNP  Q13426    CYS    93 MODIFIED RESIDUE               
SEQADV 1FU1 CAS A  128  UNP  Q13426    CYS   128 MODIFIED RESIDUE               
SEQADV 1FU1 CAS A  130  UNP  Q13426    CYS   130 MODIFIED RESIDUE               
SEQADV 1FU1 THR A  134  UNP  Q13426    ILE   134 ENGINEERED MUTATION            
SEQADV 1FU1 CAS A  165  UNP  Q13426    CYS   165 MODIFIED RESIDUE               
SEQADV 1FU1 CAS B  493  UNP  Q13426    CYS    93 MODIFIED RESIDUE               
SEQADV 1FU1 CAS B  528  UNP  Q13426    CYS   128 MODIFIED RESIDUE               
SEQADV 1FU1 CAS B  530  UNP  Q13426    CYS   130 MODIFIED RESIDUE               
SEQADV 1FU1 THR B  534  UNP  Q13426    ILE   134 ENGINEERED MUTATION            
SEQADV 1FU1 CAS B  565  UNP  Q13426    CYS   165 MODIFIED RESIDUE               
SEQRES   1 A  203  MET GLU ARG LYS ILE SER ARG ILE HIS LEU VAL SER GLU          
SEQRES   2 A  203  PRO SER ILE THR HIS PHE LEU GLN VAL SER TRP GLU LYS          
SEQRES   3 A  203  THR LEU GLU SER GLY PHE VAL ILE THR LEU THR ASP GLY          
SEQRES   4 A  203  HIS SER ALA TRP THR GLY THR VAL SER GLU SER GLU ILE          
SEQRES   5 A  203  SER GLN GLU ALA ASP ASP MET ALA MET GLU LYS GLY LYS          
SEQRES   6 A  203  TYR VAL GLY GLU LEU ARG LYS ALA LEU LEU SER GLY ALA          
SEQRES   7 A  203  GLY PRO ALA ASP VAL TYR THR PHE ASN PHE SER LYS GLU          
SEQRES   8 A  203  SER CAS TYR PHE PHE PHE GLU LYS ASN LEU LYS ASP VAL          
SEQRES   9 A  203  SER PHE ARG LEU GLY SER PHE ASN LEU GLU LYS VAL GLU          
SEQRES  10 A  203  ASN PRO ALA GLU VAL ILE ARG GLU LEU ILE CAS TYR CAS          
SEQRES  11 A  203  LEU ASP THR THR ALA GLU ASN GLN ALA LYS ASN GLU HIS          
SEQRES  12 A  203  LEU GLN LYS GLU ASN GLU ARG LEU LEU ARG ASP TRP ASN          
SEQRES  13 A  203  ASP VAL GLN GLY ARG PHE GLU LYS CAS VAL SER ALA LYS          
SEQRES  14 A  203  GLU ALA LEU GLU THR ASP LEU TYR LYS ARG PHE ILE LEU          
SEQRES  15 A  203  VAL LEU ASN GLU LYS LYS THR LYS ILE ARG SER LEU HIS          
SEQRES  16 A  203  ASN LYS LEU LEU ASN ALA ALA GLN                              
SEQRES   1 B  203  MET GLU ARG LYS ILE SER ARG ILE HIS LEU VAL SER GLU          
SEQRES   2 B  203  PRO SER ILE THR HIS PHE LEU GLN VAL SER TRP GLU LYS          
SEQRES   3 B  203  THR LEU GLU SER GLY PHE VAL ILE THR LEU THR ASP GLY          
SEQRES   4 B  203  HIS SER ALA TRP THR GLY THR VAL SER GLU SER GLU ILE          
SEQRES   5 B  203  SER GLN GLU ALA ASP ASP MET ALA MET GLU LYS GLY LYS          
SEQRES   6 B  203  TYR VAL GLY GLU LEU ARG LYS ALA LEU LEU SER GLY ALA          
SEQRES   7 B  203  GLY PRO ALA ASP VAL TYR THR PHE ASN PHE SER LYS GLU          
SEQRES   8 B  203  SER CAS TYR PHE PHE PHE GLU LYS ASN LEU LYS ASP VAL          
SEQRES   9 B  203  SER PHE ARG LEU GLY SER PHE ASN LEU GLU LYS VAL GLU          
SEQRES  10 B  203  ASN PRO ALA GLU VAL ILE ARG GLU LEU ILE CAS TYR CAS          
SEQRES  11 B  203  LEU ASP THR THR ALA GLU ASN GLN ALA LYS ASN GLU HIS          
SEQRES  12 B  203  LEU GLN LYS GLU ASN GLU ARG LEU LEU ARG ASP TRP ASN          
SEQRES  13 B  203  ASP VAL GLN GLY ARG PHE GLU LYS CAS VAL SER ALA LYS          
SEQRES  14 B  203  GLU ALA LEU GLU THR ASP LEU TYR LYS ARG PHE ILE LEU          
SEQRES  15 B  203  VAL LEU ASN GLU LYS LYS THR LYS ILE ARG SER LEU HIS          
SEQRES  16 B  203  ASN LYS LEU LEU ASN ALA ALA GLN                              
MODRES 1FU1 CAS A   93  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
MODRES 1FU1 CAS A  128  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
MODRES 1FU1 CAS A  130  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
MODRES 1FU1 CAS A  165  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
MODRES 1FU1 CAS B  493  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
MODRES 1FU1 CAS B  528  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
MODRES 1FU1 CAS B  530  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
MODRES 1FU1 CAS B  565  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
HET    CAS  A  93       9                                                       
HET    CAS  A 128       9                                                       
HET    CAS  A 130       9                                                       
HET    CAS  A 165       9                                                       
HET    CAS  B 493       9                                                       
HET    CAS  B 528       9                                                       
HET    CAS  B 530       9                                                       
HET    CAS  B 565       9                                                       
HET    ACY  A 501       4                                                       
HET    ACY  A 502       4                                                       
HET    ACY  A 503       4                                                       
HET    ACY  A 504       4                                                       
HETNAM     CAS S-(DIMETHYLARSENIC)CYSTEINE                                      
HETNAM     ACY ACETIC ACID                                                      
FORMUL   1  CAS    8(C5 H12 AS N O2 S)                                          
FORMUL   3  ACY    4(C2 H4 O2)                                                  
FORMUL   7  HOH   *61(H2 O)                                                     
HELIX    1   1 THR A   27  GLU A   29  5                                   3    
HELIX    2   2 GLU A   49  MET A   59  1                                  11    
HELIX    3   3 GLU A   62  LEU A   75  1                                  14    
HELIX    4   4 ASN A  118  ILE A  127  1                                  10    
HELIX    5   5 LEU A  131  LYS A  164  1                                  34    
HELIX    6   6 VAL A  166  GLU A  173  1                                   8    
HELIX    7   7 THR B  427  GLU B  429  5                                   3    
HELIX    8   8 GLU B  449  MET B  459  1                                  11    
HELIX    9   9 GLU B  462  LEU B  475  1                                  14    
HELIX   10  10 ASN B  518  ILE B  527  1                                  10    
HELIX   11  11 LEU B  531  ASP B  557  1                                  27    
HELIX   12  12 ASP B  557  LYS B  564  1                                   8    
HELIX   13  13 VAL B  566  ALA B  602  1                                  37    
SHEET    1   A 5 GLU A   2  ILE A   8  0                                        
SHEET    2   A 5 HIS A  18  TRP A  24 -1  O  HIS A  18   N  ILE A   8           
SHEET    3   A 5 GLY A  31  THR A  37 -1  N  VAL A  33   O  SER A  23           
SHEET    4   A 5 ALA A  42  SER A  48 -1  O  TRP A  43   N  LEU A  36           
SHEET    5   A 5 GLU A 114  LYS A 115 -1  N  GLU A 114   O  THR A  44           
SHEET    1   B 3 TYR A  84  PHE A  88  0                                        
SHEET    2   B 3 PHE A  95  LEU A 101 -1  O  PHE A  96   N  ASN A  87           
SHEET    3   B 3 VAL A 104  PHE A 111 -1  O  VAL A 104   N  LEU A 101           
SHEET    1   C 5 GLU B 402  LEU B 410  0                                        
SHEET    2   C 5 GLU B 413  TRP B 424 -1  O  GLU B 413   N  LEU B 410           
SHEET    3   C 5 GLY B 431  THR B 437 -1  N  VAL B 433   O  SER B 423           
SHEET    4   C 5 ALA B 442  SER B 448 -1  O  TRP B 443   N  LEU B 436           
SHEET    5   C 5 GLU B 514  LYS B 515 -1  O  GLU B 514   N  THR B 444           
SHEET    1   D 3 TYR B 484  PHE B 488  0                                        
SHEET    2   D 3 PHE B 495  LEU B 501 -1  O  PHE B 496   N  ASN B 487           
SHEET    3   D 3 VAL B 504  PHE B 511 -1  O  VAL B 504   N  LEU B 501           
LINK         C   SER A  92                 N   CAS A  93     1555   1555  1.34  
LINK         C   CAS A  93                 N   TYR A  94     1555   1555  1.33  
LINK         C   ILE A 127                 N   CAS A 128     1555   1555  1.34  
LINK         C   CAS A 128                 N   TYR A 129     1555   1555  1.33  
LINK         C   TYR A 129                 N   CAS A 130     1555   1555  1.34  
LINK         C   CAS A 130                 N   LEU A 131     1555   1555  1.34  
LINK         C   LYS A 164                 N   CAS A 165     1555   1555  1.33  
LINK         C   CAS A 165                 N   VAL A 166     1555   1555  1.33  
LINK         C   SER B 492                 N   CAS B 493     1555   1555  1.33  
LINK         C   CAS B 493                 N   TYR B 494     1555   1555  1.33  
LINK         C   ILE B 527                 N   CAS B 528     1555   1555  1.33  
LINK         C   CAS B 528                 N   TYR B 529     1555   1555  1.33  
LINK         C   TYR B 529                 N   CAS B 530     1555   1555  1.33  
LINK         C   CAS B 530                 N   LEU B 531     1555   1555  1.34  
LINK         C   LYS B 564                 N   CAS B 565     1555   1555  1.34  
LINK         C   CAS B 565                 N   VAL B 566     1555   1555  1.32  
SITE     1 AC1  1 LYS A  99                                                     
SITE     1 AC2  3 MET B 401  ARG B 403  SER B 423                               
SITE     1 AC3  4 GLU A  55  TYR A  66  GLY A 109  SER A 110                    
SITE     1 AC4  2 MET A   1  ARG A   3                                          
CRYST1  164.892   74.793   87.307  90.00 103.97  90.00 C 1 2 1       8          
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      0.006065  0.000000  0.001508        0.00000                         
SCALE2      0.000000  0.013370  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011803        0.00000