PDB Short entry for 1L8D
HEADER    REPLICATION                             20-MAR-02   1L8D              
TITLE     RAD50 COILED-COIL ZN HOOK                                             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA DOUBLE-STRAND BREAK REPAIR RAD50 ATPASE;               
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: RAD50 COILED-COIL FRAGMENT CONTAINING THE CXXC             
COMPND   5 MOTIF, RAD50 MOLECULAR HOOK;                                         
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PYROCOCCUS FURIOSUS;                            
SOURCE   3 ORGANISM_TAXID: 2261;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    ZINC FINGER, RAD50, DNA REPAIR, RECOMBINATION, HOOK MOTIF,            
KEYWDS   2 REPLICATION                                                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.P.HOPFNER,J.A.TAINER                                                
REVDAT   4   24-FEB-09 1L8D    1       VERSN                                    
REVDAT   3   08-FEB-05 1L8D    1       AUTHOR JRNL                              
REVDAT   2   01-APR-03 1L8D    1       JRNL                                     
REVDAT   1   28-AUG-02 1L8D    0                                                
JRNL        AUTH   K.P.HOPFNER,L.CRAIG,G.MONCALIAN,R.A.ZINKEL,T.USUI,           
JRNL        AUTH 2 B.A.OWEN,A.KARCHER,B.HENDERSON,J.L.BODMER,                   
JRNL        AUTH 3 C.T.MCMURRAY,J.P.CARNEY,J.H.PETRINI,J.A.TAINER               
JRNL        TITL   THE RAD50 ZINC-HOOK IS A STRUCTURE JOINING MRE11             
JRNL        TITL 2 COMPLEXES IN DNA RECOMBINATION AND REPAIR.                   
JRNL        REF    NATURE                        V. 418   562 2002              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   12152085                                                     
JRNL        DOI    10.1038/NATURE00922                                          
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
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) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 10580                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.225                           
REMARK   3   FREE R VALUE                     : 0.278                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 548                             
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) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
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            : 1689                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 44                                      
REMARK   3   SOLVENT ATOMS            : 124                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.010                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.79                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : 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 1L8D COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-MAR-02.                  
REMARK 100 THE RCSB ID CODE IS RCSB015733.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-FEB-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5                                  
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRL                               
REMARK 200  BEAMLINE                       : BL9-2                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.8321, 1.009                      
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (TRUNCATE)                    
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 13119                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 88.0                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.25                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 62.9                               
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: MAD                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: MLPHARE                                               
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.21                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.52                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM PHOSPHATE/CITRATE, 40%            
REMARK 280  ETHANOL, 50 MM ZN-ACETATE, 10% GLYCEROL, VAPOR DIFFUSION,           
REMARK 280  SITTING DROP, TEMPERATURE 300K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       38.93400            
REMARK 290   SMTRY3   2  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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2530 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 14540 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -53.0 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 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     MET A   395                                                      
REMARK 465     THR A   499                                                      
REMARK 465     PRO A   500                                                      
REMARK 465     LEU A   501                                                      
REMARK 465     LEU A   502                                                      
REMARK 465     THR A   503                                                      
REMARK 465     VAL A   504                                                      
REMARK 465     ALA A   505                                                      
REMARK 465     GLU A   506                                                      
REMARK 465     ARG B   497                                                      
REMARK 465     LEU B   498                                                      
REMARK 465     THR B   499                                                      
REMARK 465     PRO B   500                                                      
REMARK 465     LEU B   501                                                      
REMARK 465     LEU B   502                                                      
REMARK 465     THR B   503                                                      
REMARK 465     VAL B   504                                                      
REMARK 465     ALA B   505                                                      
REMARK 465     GLU B   506                                                      
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  396   CD    CE    NZ                                      
REMARK 480     LYS A  397   CG    CD    CE    NZ                                
REMARK 480     GLU A  454   OE1   OE2                                           
REMARK 480     GLU A  458   CD    OE1   OE2                                     
REMARK 480     LYS A  476   CG    CD    CE    NZ                                
REMARK 480     SER A  482   OG                                                  
REMARK 480     ARG A  497   NE    CZ    NH1   NH2                               
REMARK 480     MET B  395   CB    CG    SD    CE                                
REMARK 480     LYS B  396   CB    CG    CD    CE    NZ                          
REMARK 480     LYS B  397   CG    CD    CE    NZ                                
REMARK 480     GLU B  400   CG    CD    OE1   OE2                               
REMARK 480     GLU B  403   OE1   OE2                                           
REMARK 480     LYS B  405   CD    CE    NZ                                      
REMARK 480     GLU B  415   CD    OE1   OE2                                     
REMARK 480     GLN B  418   CG    CD    OE1   NE2                               
REMARK 480     ASN B  425   OD1   ND2                                           
REMARK 480     LYS B  441   NZ                                                  
REMARK 480     GLU B  450   CG    CD    OE1   OE2                               
REMARK 480     GLU B  458   CD    OE1   OE2                                     
REMARK 480     ASP B  479   OD1   OD2                                           
REMARK 480     SER B  482   OG                                                  
REMARK 480     GLU B  483   CD    OE1   OE2                                     
REMARK 480     ARG B  489   CD    NE    CZ    NH1   NH2                         
REMARK 480     LYS B  496   CD    CE    NZ                                      
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    ARG A 497   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.3 DEGREES          
REMARK 500    ARG B 489   NH1 -  CZ  -  NH2 ANGL. DEV. =  -7.8 DEGREES          
REMARK 500    ARG B 489   NE  -  CZ  -  NH1 ANGL. DEV. =   9.7 DEGREES          
REMARK 500    ARG B 489   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.5 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    LYS A 441       54.94   -147.60                                   
REMARK 500    ARG A 497      -71.45    -55.37                                   
REMARK 500    LYS B 441       70.46   -151.83                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    ARG B 489         0.14    SIDE_CHAIN                              
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 B  66        DISTANCE =  5.49 ANGSTROMS                       
REMARK 525    HOH A 140        DISTANCE =  5.68 ANGSTROMS                       
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                              HG A 201  HG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 444   SG                                                     
REMARK 620 2 CYS B 444   SG  116.5                                              
REMARK 620 3 CYS A 447   SG  101.7 116.0                                        
REMARK 620 4 CYS B 447   SG  112.1 109.0 100.1                                  
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 HG A 201                  
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 B 301                 
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 302                 
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 303                 
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 304                 
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 305                 
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 306                 
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CIT A 507                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1F2T   RELATED DB: PDB                                   
REMARK 900 RAD50 ATPASE DOMAIN                                                  
REMARK 900 RELATED ID: 1F2U   RELATED DB: PDB                                   
REMARK 900 RAD50 ATPASE DOMAIN+ATP                                              
REMARK 900 RELATED ID: 1II8   RELATED DB: PDB                                   
REMARK 900 RAD50 ATPASE DOMAIN+COILED-COIL                                      
REMARK 900 RELATED ID: 1II7   RELATED DB: PDB                                   
REMARK 900 MRE11                                                                
DBREF  1L8D A  396   506  UNP    P58301   RAD50_PYRFU    396    506             
DBREF  1L8D B  396   506  UNP    P58301   RAD50_PYRFU    396    506             
SEQADV 1L8D MET A  395  UNP  P58301              INITIATING MET                 
SEQADV 1L8D MET B  395  UNP  P58301              INITIATING MET                 
SEQRES   1 A  112  MET LYS LYS LEU LEU GLU GLU LEU GLU THR LYS LYS THR          
SEQRES   2 A  112  THR ILE GLU GLU GLU ARG ASN GLU ILE THR GLN ARG ILE          
SEQRES   3 A  112  GLY GLU LEU LYS ASN LYS ILE GLY ASP LEU LYS THR ALA          
SEQRES   4 A  112  ILE GLU GLU LEU LYS LYS ALA LYS GLY LYS CYS PRO VAL          
SEQRES   5 A  112  CYS GLY ARG GLU LEU THR ASP GLU HIS ARG GLU GLU LEU          
SEQRES   6 A  112  LEU SER LYS TYR HIS LEU ASP LEU ASN ASN SER LYS ASN          
SEQRES   7 A  112  THR LEU ALA LYS LEU ILE ASP ARG LYS SER GLU LEU GLU          
SEQRES   8 A  112  ARG GLU LEU ARG ARG ILE ASP MET GLU ILE LYS ARG LEU          
SEQRES   9 A  112  THR PRO LEU LEU THR VAL ALA GLU                              
SEQRES   1 B  112  MET LYS LYS LEU LEU GLU GLU LEU GLU THR LYS LYS THR          
SEQRES   2 B  112  THR ILE GLU GLU GLU ARG ASN GLU ILE THR GLN ARG ILE          
SEQRES   3 B  112  GLY GLU LEU LYS ASN LYS ILE GLY ASP LEU LYS THR ALA          
SEQRES   4 B  112  ILE GLU GLU LEU LYS LYS ALA LYS GLY LYS CYS PRO VAL          
SEQRES   5 B  112  CYS GLY ARG GLU LEU THR ASP GLU HIS ARG GLU GLU LEU          
SEQRES   6 B  112  LEU SER LYS TYR HIS LEU ASP LEU ASN ASN SER LYS ASN          
SEQRES   7 B  112  THR LEU ALA LYS LEU ILE ASP ARG LYS SER GLU LEU GLU          
SEQRES   8 B  112  ARG GLU LEU ARG ARG ILE ASP MET GLU ILE LYS ARG LEU          
SEQRES   9 B  112  THR PRO LEU LEU THR VAL ALA GLU                              
HET     HG  A 201       1                                                       
HET    PO4  B 301       5                                                       
HET    PO4  A 302       5                                                       
HET    PO4  A 303       5                                                       
HET    PO4  A 304       5                                                       
HET    PO4  A 305       5                                                       
HET    PO4  A 306       5                                                       
HET    CIT  A 507      13                                                       
HETNAM      HG MERCURY (II) ION                                                 
HETNAM     PO4 PHOSPHATE ION                                                    
HETNAM     CIT CITRIC ACID                                                      
FORMUL   3   HG    HG 2+                                                        
FORMUL   4  PO4    6(O4 P 3-)                                                   
FORMUL  10  CIT    C6 H8 O7                                                     
FORMUL  11  HOH   *124(H2 O)                                                    
HELIX    1   1 LYS A  396  LYS A  438  1                                  43    
HELIX    2   2 THR A  452  LEU A  498  1                                  47    
HELIX    3   3 MET B  395  LYS B  438  1                                  44    
HELIX    4   4 THR B  452  LYS B  496  1                                  45    
SHEET    1   A 2 GLY A 442  LYS A 443  0                                        
SHEET    2   A 2 GLU A 450  LEU A 451 -1  O  LEU A 451   N  GLY A 442           
SHEET    1   B 2 GLY B 442  LYS B 443  0                                        
SHEET    2   B 2 GLU B 450  LEU B 451 -1  O  LEU B 451   N  GLY B 442           
LINK        HG    HG A 201                 SG  CYS A 444     1555   1555  2.36  
LINK        HG    HG A 201                 SG  CYS B 444     1555   1555  2.30  
LINK        HG    HG A 201                 SG  CYS A 447     1555   1555  2.48  
LINK        HG    HG A 201                 SG  CYS B 447     1555   1555  2.54  
SITE     1 AC1  4 CYS A 444  CYS A 447  CYS B 444  CYS B 447                    
SITE     1 AC2  1 ARG B 449                                                     
SITE     1 AC3  1 CIT A 507                                                     
SITE     1 AC4  5 HOH A  82  HOH A 109  LYS A 441  ASP A 453                    
SITE     2 AC4  5 ARG A 456                                                     
SITE     1 AC5  3 ARG A 456  GLU A 457  LEU A 460                               
SITE     1 AC6  3 LYS A 431  THR A 432  GLU A 435                               
SITE     1 AC7  4 GLU A 403  ARG B 413  LYS B 481  GLU B 485                    
SITE     1 AC8  9 HOH A  69  PO4 A 302  LYS A 406  GLU A 410                    
SITE     2 AC8  9 ARG A 413  LEU A 488  GLU B 403  LYS B 406                    
SITE     3 AC8  9 ILE B 495                                                     
CRYST1   31.958   77.868   53.330  90.00  91.55  90.00 P 1 21 1      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      0.031291  0.000000  0.000847        0.00000                         
SCALE2      0.000000  0.012842  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.018758        0.00000