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Database: PDB
Entry: 1BIX
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Original site: 1BIX 
HEADER    DNA REPAIR                              19-JUN-98   1BIX              
TITLE     THE CRYSTAL STRUCTURE OF THE HUMAN DNA REPAIR ENDONUCLEASE HAP1       
TITLE    2 SUGGESTS THE RECOGNITION OF EXTRA-HELICAL DEOXYRIBOSE AT DNA ABASIC  
TITLE    3 SITES                                                                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: AP ENDONUCLEASE 1;                                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 4.2.99.18;                                                       
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3)                                 
KEYWDS    DNA REPAIR, ENDONUCLEASE, HAP1, REF-1, ABASIC SITE RECOGNITION        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.A.GORMAN,S.MORERA,D.G.ROTHWELL,E.DE LA FORTELLE,C.D.MOL,J.A.TAINER, 
AUTHOR   2 I.D.HICKSON,P.S.FREEMONT                                             
REVDAT   4   07-FEB-24 1BIX    1       REMARK LINK                              
REVDAT   3   24-FEB-09 1BIX    1       VERSN                                    
REVDAT   2   01-APR-03 1BIX    1       JRNL                                     
REVDAT   1   22-JUN-99 1BIX    0                                                
JRNL        AUTH   M.A.GORMAN,S.MORERA,D.G.ROTHWELL,E.DE LA FORTELLE,C.D.MOL,   
JRNL        AUTH 2 J.A.TAINER,I.D.HICKSON,P.S.FREEMONT                          
JRNL        TITL   THE CRYSTAL STRUCTURE OF THE HUMAN DNA REPAIR ENDONUCLEASE   
JRNL        TITL 2 HAP1 SUGGESTS THE RECOGNITION OF EXTRA-HELICAL DEOXYRIBOSE   
JRNL        TITL 3 AT DNA ABASIC SITES.                                         
JRNL        REF    EMBO J.                       V.  16  6548 1997              
JRNL        REFN                   ISSN 0261-4189                               
JRNL        PMID   9351835                                                      
JRNL        DOI    10.1093/EMBOJ/16.21.6548                                     
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   M.A.GORMAN                                                   
REMARK   1  TITL   CRYSTAL STRUCTURE OF THE HUMAN DNA REPAIR ENZYME AP          
REMARK   1  TITL 2 ENDONUCLEASE 1                                               
REMARK   1  REF    THESIS, THE OPEN UNIVERSITY                1998              
REMARK   1  PUBL   MILTON KEYES, ENG. : THE OPEN UNIVERSITY (THESIS)            
REMARK   1  REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.84                                          
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1000000.000                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.1000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 15001                          
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) : 0.184                           
REMARK   3   FREE R VALUE                     : 0.269                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 1454                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.007                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 8                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.30                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 92.40                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1539                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2500                       
REMARK   3   BIN FREE R VALUE                    : 0.3110                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 10.30                        
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 193                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.022                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2190                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 5                                       
REMARK   3   SOLVENT ATOMS            : 155                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 26.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.40                          
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) : 20.0                            
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) : 0.016                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.920                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 25.34                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.780                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : UNRESTRAINED                              
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  : PARAM19X.PRO                                   
REMARK   3  PARAMETER FILE  2  : PARAM19.SOL                                    
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : TOPH19X.PRO                                    
REMARK   3  TOPOLOGY FILE  2   : NULL                                           
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1BIX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000171811.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : DEC-96                             
REMARK 200  TEMPERATURE           (KELVIN) : 110                                
REMARK 200  PH                             : 7.4                                
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          : RIGAKU RUH2R                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NI FILTER                          
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU                             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO, MOSFLM                      
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 15089                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.200                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.1                               
REMARK 200  DATA REDUNDANCY                : 3.600                              
REMARK 200  R MERGE                    (I) : 0.04300                            
REMARK 200  R SYM                      (I) : 0.04300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.7000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.19                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.31                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 90.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.11400                            
REMARK 200  R SYM FOR SHELL            (I) : 0.11400                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.200                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MULTIPLE ISOMORPHOUS         
REMARK 200  REPLACEMENT AND ANOMALOUS SCATTERING                                
REMARK 200 SOFTWARE USED: SHARP, X-PLOR 3.84                                    
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.4                                   
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       43.63000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       22.35050            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       43.63000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       22.35050            
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 THE STRUCTURE IS A 35 AMINO ACID TRUNCATED FORM OF THE               
REMARK 400  'NATIVE' MOLECULE.                                                  
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     LYS A    32                                                      
REMARK 465     ASN A    33                                                      
REMARK 465     ASP A    34                                                      
REMARK 465     LYS A    35                                                      
REMARK 465     GLU A    36                                                      
REMARK 465     ALA A    37                                                      
REMARK 465     ALA A    38                                                      
REMARK 465     GLY A    39                                                      
REMARK 465     GLU A    40                                                      
REMARK 465     GLY A    41                                                      
REMARK 465     PRO A    42                                                      
REMARK 465     ALA A    43                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     LEU A  44    CG   CD1  CD2                                       
REMARK 475                                                                      
REMARK 475 ZERO OCCUPANCY RESIDUES                                              
REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY.             
REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT                
REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE)          
REMARK 475   M RES C  SSEQI                                                     
REMARK 475     SER A   100                                                      
REMARK 475     GLU A   101                                                      
REMARK 475     ASN A   102                                                      
REMARK 475     LYS A   103                                                      
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     GLN A  109   CG   CD   OE1  NE2                                  
REMARK 480     ASP A  124   CG   OD1  OD2                                       
REMARK 480     LYS A  125   CG   CD   CE   NZ                                   
REMARK 480     ARG A  202   CG   CD   NE   CZ   NH1  NH2                        
REMARK 480     LYS A  224   CG   CD   CE   NZ                                   
REMARK 480     LYS A  227   CG   CD   CE   NZ                                   
REMARK 480     LYS A  228   CG   CD   CE   NZ                                   
REMARK 480     ASN A  272   CG   OD1  ND2                                       
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    ASP A 308   CB  -  CG  -  OD1 ANGL. DEV. =   6.6 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    GLU A 101     -171.45    172.89                                   
REMARK 500    LYS A 125       91.12    -58.60                                   
REMARK 500    SER A 129     -145.21     53.03                                   
REMARK 500    VAL A 213      132.07   -170.79                                   
REMARK 500    PHE A 232       29.33   -145.71                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              SM A 402  SM                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A  46   OE1                                                    
REMARK 620 2 GLU A  46   OE2  50.0                                              
REMARK 620 3 ASP A 148   OD1 149.7 111.8                                        
REMARK 620 4 GLU A 150   OE2 133.4 105.9  70.4                                  
REMARK 620 5 GLU A 150   OE1 112.3  64.9  66.6  48.3                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              SM A 401  SM                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  70   OD1                                                    
REMARK 620 2 GLU A  96   OE2 102.6                                              
REMARK 620 3 GLU A  96   OE1  70.2  49.9                                        
REMARK 620 4 HOH A 563   O    83.2  92.2 123.6                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              SM A 403  SM                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 126   OE2                                                    
REMARK 620 2 LEU A 318   O    79.3                                              
REMARK 620 3 LEU A 318   OXT 118.4  50.4                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              SM A 400  SM                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 216   OE2                                                    
REMARK 620 2 GLU A 216   OE1  45.4                                              
REMARK 620 3 GLU A 217   OE1 107.6  66.8                                        
REMARK 620 4 GLU A 217   OE2 115.2  74.1  50.5                                  
REMARK 620 5 GLU A 242   OE1 128.9 137.5 116.5  78.2                            
REMARK 620 6 GLN A 245   OE1  73.0 118.3 156.6 151.5  76.2                      
REMARK 620 7 HOH A 566   O   128.9 123.5  67.5 100.1  92.4  93.5                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              PT A 404  PT                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 MET A 271   SD                                                     
REMARK 620 2 LYS A 276   NZ  130.4                                              
REMARK 620 N                    1                                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: ROX                                                 
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: CYS 65 HAS BEEN PROPOSED TO BE INVOLVED IN THE     
REMARK 800  REDUCTIVE ACTIVATION OF A NUMBER OF TRANSCRIPTION FACTORS           
REMARK 800  INCLUDING FOS/JUN AND P53.                                          
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SM A 400                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SM A 401                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SM A 402                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SM A 403                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PT A 404                  
DBREF  1BIX A   32   318  UNP    P27695   APEX1_HUMAN     31    317             
SEQRES   1 A  287  LYS ASN ASP LYS GLU ALA ALA GLY GLU GLY PRO ALA LEU          
SEQRES   2 A  287  TYR GLU ASP PRO PRO ASP GLN LYS THR SER PRO SER GLY          
SEQRES   3 A  287  LYS PRO ALA THR LEU LYS ILE CYS SER TRP ASN VAL ASP          
SEQRES   4 A  287  GLY LEU ARG ALA TRP ILE LYS LYS LYS GLY LEU ASP TRP          
SEQRES   5 A  287  VAL LYS GLU GLU ALA PRO ASP ILE LEU CYS LEU GLN GLU          
SEQRES   6 A  287  THR LYS CYS SER GLU ASN LYS LEU PRO ALA GLU LEU GLN          
SEQRES   7 A  287  GLU LEU PRO GLY LEU SER HIS GLN TYR TRP SER ALA PRO          
SEQRES   8 A  287  SER ASP LYS GLU GLY TYR SER GLY VAL GLY LEU LEU SER          
SEQRES   9 A  287  ARG GLN CYS PRO LEU LYS VAL SER TYR GLY ILE GLY ASP          
SEQRES  10 A  287  GLU GLU HIS ASP GLN GLU GLY ARG VAL ILE VAL ALA GLU          
SEQRES  11 A  287  PHE ASP SER PHE VAL LEU VAL THR ALA TYR VAL PRO ASN          
SEQRES  12 A  287  ALA GLY ARG GLY LEU VAL ARG LEU GLU TYR ARG GLN ARG          
SEQRES  13 A  287  TRP ASP GLU ALA PHE ARG LYS PHE LEU LYS GLY LEU ALA          
SEQRES  14 A  287  SER ARG LYS PRO LEU VAL LEU CYS GLY ASP LEU ASN VAL          
SEQRES  15 A  287  ALA HIS GLU GLU ILE ASP LEU ARG ASN PRO LYS GLY ASN          
SEQRES  16 A  287  LYS LYS ASN ALA GLY PHE THR PRO GLN GLU ARG GLN GLY          
SEQRES  17 A  287  PHE GLY GLU LEU LEU GLN ALA VAL PRO LEU ALA ASP SER          
SEQRES  18 A  287  PHE ARG HIS LEU TYR PRO ASN THR PRO TYR ALA TYR THR          
SEQRES  19 A  287  PHE TRP THR TYR MET MET ASN ALA ARG SER LYS ASN VAL          
SEQRES  20 A  287  GLY TRP ARG LEU ASP TYR PHE LEU LEU SER HIS SER LEU          
SEQRES  21 A  287  LEU PRO ALA LEU CYS ASP SER LYS ILE ARG SER LYS ALA          
SEQRES  22 A  287  LEU GLY SER ASP HIS CYS PRO ILE THR LEU TYR LEU ALA          
SEQRES  23 A  287  LEU                                                          
HET     SM  A 400       1                                                       
HET     SM  A 401       1                                                       
HET     SM  A 402       1                                                       
HET     SM  A 403       1                                                       
HET     PT  A 404       1                                                       
HETNAM      SM SAMARIUM (III) ION                                               
HETNAM      PT PLATINUM (II) ION                                                
FORMUL   2   SM    4(SM 3+)                                                     
FORMUL   6   PT    PT 2+                                                        
FORMUL   7  HOH   *155(H2 O)                                                    
HELIX    1   1 LEU A   72  LYS A   77  1                                   6    
HELIX    2   2 GLY A   80  GLU A   87  1                                   8    
HELIX    3   3 ALA A  106  GLN A  109  5                                   4    
HELIX    4   4 GLU A  149  HIS A  151  5                                   3    
HELIX    5   5 ARG A  177  LEU A  179  5                                   3    
HELIX    6   6 LEU A  182  ALA A  200  1                                  19    
HELIX    7   7 GLU A  217  ASP A  219  5                                   3    
HELIX    8   8 LYS A  224  ASN A  226  5                                   3    
HELIX    9   9 PRO A  234  ALA A  246  1                                  13    
HELIX   10  10 SER A  252  LEU A  256  1                                   5    
HELIX   11  11 MET A  270  ASN A  272  5                                   3    
HELIX   12  12 HIS A  289  ALA A  294  5                                   6    
SHEET    1   A 6 HIS A 116  SER A 120  0                                        
SHEET    2   A 6 VAL A 131  SER A 135 -1  N  SER A 135   O  HIS A 116           
SHEET    3   A 6 ILE A  91  GLN A  95 -1  N  LEU A  94   O  GLY A 132           
SHEET    4   A 6 LEU A  62  ASN A  68  1  N  CYS A  65   O  ILE A  91           
SHEET    5   A 6 ILE A 312  LEU A 316 -1  N  LEU A 316   O  LEU A  62           
SHEET    6   A 6 LEU A 295  ILE A 300 -1  N  LYS A 299   O  THR A 313           
SHEET    1   B 5 LYS A 141  TYR A 144  0                                        
SHEET    2   B 5 VAL A 157  GLU A 161 -1  N  GLU A 161   O  LYS A 141           
SHEET    3   B 5 VAL A 166  TYR A 171 -1  N  THR A 169   O  ILE A 158           
SHEET    4   B 5 LEU A 205  ASP A 210  1  N  VAL A 206   O  VAL A 166           
SHEET    5   B 5 ASP A 283  LEU A 287 -1  N  LEU A 286   O  LEU A 207           
LINK         OE1 GLU A  46                SM    SM A 402     3545   1555  2.29  
LINK         OE2 GLU A  46                SM    SM A 402     3545   1555  2.86  
LINK         OD1 ASP A  70                SM    SM A 401     1555   1555  2.52  
LINK         OE2 GLU A  96                SM    SM A 401     1555   1555  2.32  
LINK         OE1 GLU A  96                SM    SM A 401     1555   1555  2.75  
LINK         OE2 GLU A 126                SM    SM A 403     1565   1555  2.54  
LINK         OD1 ASP A 148                SM    SM A 402     1555   1555  2.39  
LINK         OE2 GLU A 150                SM    SM A 402     1555   1555  2.61  
LINK         OE1 GLU A 150                SM    SM A 402     1555   1555  2.71  
LINK         OE2 GLU A 216                SM    SM A 400     1555   1555  2.97  
LINK         OE1 GLU A 216                SM    SM A 400     1555   1555  2.71  
LINK         OE1 GLU A 217                SM    SM A 400     1555   1555  2.35  
LINK         OE2 GLU A 217                SM    SM A 400     1555   1555  2.68  
LINK         OE1 GLU A 242                SM    SM A 400     2656   1555  2.57  
LINK         OE1 GLN A 245                SM    SM A 400     2656   1555  2.18  
LINK         SD  MET A 271                PT    PT A 404     1555   1555  1.97  
LINK         NZ  LYS A 276                PT    PT A 404     1555   1555  2.92  
LINK         O   LEU A 318                SM    SM A 403     1555   1555  2.63  
LINK         OXT LEU A 318                SM    SM A 403     1555   1555  2.57  
LINK        SM    SM A 400                 O   HOH A 566     1555   2656  2.82  
LINK        SM    SM A 401                 O   HOH A 563     1555   1555  2.79  
CISPEP   1 VAL A  247    PRO A  248          0        -1.57                     
SITE     1 ROX  1 CYS A  65                                                     
SITE     1 AC1  5 GLU A 216  GLU A 217  GLU A 242  GLN A 245                    
SITE     2 AC1  5 HOH A 566                                                     
SITE     1 AC2  3 ASP A  70  GLU A  96  HOH A 563                               
SITE     1 AC3  3 GLU A  46  ASP A 148  GLU A 150                               
SITE     1 AC4  3 ASP A 124  GLU A 126  LEU A 318                               
SITE     1 AC5  2 MET A 271  LYS A 276                                          
CRYST1   87.260   44.701   78.778  90.00 103.45  90.00 C 1 2 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      0.011460  0.000000  0.002741        0.00000                         
SCALE2      0.000000  0.022371  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013052        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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