HEADER    OXIDOREDUCTASE                          30-MAY-03   1PIY               
TITLE     RIBONUCLEOTIDE REDUCTASE R2 SOAKED WITH FERROUS ION AT NEUTRAL PH      
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE 1 BETA CHAIN;          
COMPND   3 CHAIN: A, B;                                                          
COMPND   4 SYNONYM: RIBONUCLEOTIDE REDUCTASE 1, B2 PROTEIN, R2 PROTEIN;          
COMPND   5 EC: 1.17.4.1;                                                         
COMPND   6 ENGINEERED: YES                                                       
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                                
SOURCE   3 ORGANISM_TAXID: 562;                                                  
SOURCE   4 GENE: RIR2;                                                           
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562                                          
KEYWDS    FOUR-HELIX BUNDLE, DIFERROUS CLUSTER, OXIDOREDUCTASE                   
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    W.C.VOEGTLI,M.SOMMERHALTER,L.SALEH,J.BALDWIN,J.M.BOLLINGER JR.,        
AUTHOR   2 A.C.ROSENZWEIG                                                        
REVDAT   4   16-AUG-23 1PIY    1       REMARK LINK                               
REVDAT   3   13-JUL-11 1PIY    1       VERSN                                     
REVDAT   2   24-FEB-09 1PIY    1       VERSN                                     
REVDAT   1   13-JAN-04 1PIY    0                                                 
JRNL        AUTH   W.C.VOEGTLI,M.SOMMERHALTER,L.SALEH,J.BALDWIN,                 
JRNL        AUTH 2 J.M.BOLLINGER JR.,A.C.ROSENZWEIG                              
JRNL        TITL   VARIABLE COORDINATION GEOMETRIES AT THE DIIRON(II) ACTIVE     
JRNL        TITL 2 SITE OF RIBONUCLEOTIDE REDUCTASE R2.                          
JRNL        REF    J.AM.CHEM.SOC.                V. 125 15822 2003               
JRNL        REFN                   ISSN 0002-7863                                
JRNL        PMID   14677973                                                      
JRNL        DOI    10.1021/JA0370387                                             
REMARK   2                                                                       
REMARK   2 RESOLUTION.    1.68 ANGSTROMS.                                        
REMARK   3                                                                       
REMARK   3 REFINEMENT.                                                           
REMARK   3   PROGRAM     : CNS 1.0                                               
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) : 1.68                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 24.08                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1901059.320                     
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                          
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 95.2                            
REMARK   3   NUMBER OF REFLECTIONS             : 78137                           
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) : 0.225                            
REMARK   3   FREE R VALUE                     : 0.246                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 3938                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.004                            
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) : 1.68                          
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.79                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 89.10                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 11424                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2640                        
REMARK   3   BIN FREE R VALUE                    : 0.2770                        
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 4.80                          
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 576                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.012                         
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 5566                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 18                                       
REMARK   3   SOLVENT ATOMS            : 248                                      
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : 19.60                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 19.10                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                        
REMARK   3    B11 (A**2) : -3.16000                                              
REMARK   3    B22 (A**2) : 3.65000                                               
REMARK   3    B33 (A**2) : -0.48000                                              
REMARK   3    B12 (A**2) : 0.00000                                               
REMARK   3    B13 (A**2) : 0.00000                                               
REMARK   3    B23 (A**2) : 0.00000                                               
REMARK   3                                                                       
REMARK   3  ESTIMATED COORDINATE ERROR.                                          
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.22                             
REMARK   3   ESD FROM SIGMAA              (A) : 0.15                             
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) : 0.24                             
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.16                             
REMARK   3                                                                       
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                    
REMARK   3   BOND LENGTHS                 (A) : 0.006                            
REMARK   3   BOND ANGLES            (DEGREES) : 1.100                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 19.30                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.780                            
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) : 0.170 ; 1.500                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 0.320 ; 2.000                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : 0.170 ; 2.000                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 0.270 ; 2.500                 
REMARK   3                                                                       
REMARK   3  BULK SOLVENT MODELING.                                               
REMARK   3   METHOD USED : FLAT MODEL                                            
REMARK   3   KSOL        : 0.39                                                  
REMARK   3   BSOL        : 39.45                                                 
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.PARAM                                 
REMARK   3  PARAMETER FILE  3  : TOPPER_ION.PARAM                                
REMARK   3  PARAMETER FILE  4  : NULL                                            
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                     
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                       
REMARK   3  TOPOLOGY FILE  3   : TOPPER_ION.TOP                                  
REMARK   3  TOPOLOGY FILE  4   : NULL                                            
REMARK   3                                                                       
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                       
REMARK   4                                                                       
REMARK   4 1PIY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-JUN-03.                   
REMARK 100 THE DEPOSITION ID IS D_1000019345.                                    
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : 18-JUL-00                           
REMARK 200  TEMPERATURE           (KELVIN) : 100                                 
REMARK 200  PH                             : 6.0                                 
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                   
REMARK 200                                                                       
REMARK 200  SYNCHROTRON              (Y/N) : Y                                   
REMARK 200  RADIATION SOURCE               : SSRL                                
REMARK 200  BEAMLINE                       : BL9-1                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                                
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                   
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97                                
REMARK 200  MONOCHROMATOR                  : NULL                                
REMARK 200  OPTICS                         : NULL                                
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                         
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                         
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                              
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (SCALA)                        
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 78137                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.680                               
REMARK 200  RESOLUTION RANGE LOW       (A) : 25.000                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                               
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.2                                
REMARK 200  DATA REDUNDANCY                : NULL                                
REMARK 200  R MERGE                    (I) : NULL                                
REMARK 200  R SYM                      (I) : NULL                                
REMARK 200   FOR THE DATA SET  : NULL                                
REMARK 200                                                                       
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.68                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.79                      
REMARK 200  COMPLETENESS FOR SHELL     (%) : 89.1                                
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   FOR SHELL         : NULL                                
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                               
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT         
REMARK 200 SOFTWARE USED: CNS                                                    
REMARK 200 STARTING MODEL: PDB ENTRY 1PIM                                        
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 40.10                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.05                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 4000, 200MM NACL, 50MM MES,       
REMARK 280  0.3% DIOXANE, PH 6.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE     
REMARK 280  310K                                                                 
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                        
REMARK 290                                                                       
REMARK 290      SYMOP   SYMMETRY                                                 
REMARK 290     NNNMMM   OPERATOR                                                 
REMARK 290       1555   X,Y,Z                                                    
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                          
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                          
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                          
REMARK 290                                                                       
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                      
REMARK 290           MMM -> TRANSLATION VECTOR                                   
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                             
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM              
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                 
REMARK 290 RELATED MOLECULES.                                                    
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       36.95000             
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       57.05000             
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       42.30000             
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       57.05000             
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       36.95000             
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       42.30000             
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 300 REMARK: TETRAMER OF TWO ALPHA AND TWO BETA SUBUNITS                   
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,PQS                                               
REMARK 350 TOTAL BURIED SURFACE AREA: 7650 ANGSTROM**2                           
REMARK 350 SURFACE AREA OF THE COMPLEX: 23930 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -323.0 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     SER A   341                                                       
REMARK 465     ASP A   342                                                       
REMARK 465     ASN A   343                                                       
REMARK 465     VAL A   344                                                       
REMARK 465     GLN A   345                                                       
REMARK 465     VAL A   346                                                       
REMARK 465     ALA A   347                                                       
REMARK 465     PRO A   348                                                       
REMARK 465     GLN A   349                                                       
REMARK 465     GLU A   350                                                       
REMARK 465     VAL A   351                                                       
REMARK 465     GLU A   352                                                       
REMARK 465     VAL A   353                                                       
REMARK 465     SER A   354                                                       
REMARK 465     SER A   355                                                       
REMARK 465     TYR A   356                                                       
REMARK 465     LEU A   357                                                       
REMARK 465     VAL A   358                                                       
REMARK 465     GLY A   359                                                       
REMARK 465     GLN A   360                                                       
REMARK 465     ILE A   361                                                       
REMARK 465     ASP A   362                                                       
REMARK 465     SER A   363                                                       
REMARK 465     GLU A   364                                                       
REMARK 465     VAL A   365                                                       
REMARK 465     ASP A   366                                                       
REMARK 465     THR A   367                                                       
REMARK 465     ASP A   368                                                       
REMARK 465     ASP A   369                                                       
REMARK 465     LEU A   370                                                       
REMARK 465     SER A   371                                                       
REMARK 465     ASN A   372                                                       
REMARK 465     PHE A   373                                                       
REMARK 465     GLN A   374                                                       
REMARK 465     LEU A   375                                                       
REMARK 465     SER B   341                                                       
REMARK 465     ASP B   342                                                       
REMARK 465     ASN B   343                                                       
REMARK 465     VAL B   344                                                       
REMARK 465     GLN B   345                                                       
REMARK 465     VAL B   346                                                       
REMARK 465     ALA B   347                                                       
REMARK 465     PRO B   348                                                       
REMARK 465     GLN B   349                                                       
REMARK 465     GLU B   350                                                       
REMARK 465     VAL B   351                                                       
REMARK 465     GLU B   352                                                       
REMARK 465     VAL B   353                                                       
REMARK 465     SER B   354                                                       
REMARK 465     SER B   355                                                       
REMARK 465     TYR B   356                                                       
REMARK 465     LEU B   357                                                       
REMARK 465     VAL B   358                                                       
REMARK 465     GLY B   359                                                       
REMARK 465     GLN B   360                                                       
REMARK 465     ILE B   361                                                       
REMARK 465     ASP B   362                                                       
REMARK 465     SER B   363                                                       
REMARK 465     GLU B   364                                                       
REMARK 465     VAL B   365                                                       
REMARK 465     ASP B   366                                                       
REMARK 465     THR B   367                                                       
REMARK 465     ASP B   368                                                       
REMARK 465     ASP B   369                                                       
REMARK 465     LEU B   370                                                       
REMARK 465     SER B   371                                                       
REMARK 465     ASN B   372                                                       
REMARK 465     PHE B   373                                                       
REMARK 465     GLN B   374                                                       
REMARK 465     LEU B   375                                                       
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     GLN A   7    CG   CD   OE1  NE2                                   
REMARK 470     GLN B   7    CG   CD   OE1  NE2                                   
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                      
REMARK 500                                                                       
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                             
REMARK 500                                                                       
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE           
REMARK 500   OE1  GLU B   204     OE1  GLU B   238              2.06             
REMARK 500   OE1  GLU A   204     OE1  GLU A   238              2.19             
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                       
REMARK 500                                                                       
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES               
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE                
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN                
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                  
REMARK 500                                                                       
REMARK 500 STANDARD TABLE:                                                       
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)                
REMARK 500                                                                       
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                         
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                      
REMARK 500                                                                       
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                      
REMARK 500    CYS B 214   CB    CYS B 214   SG      0.154                        
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
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    CYS B 214   CA  -  CB  -  SG  ANGL. DEV. =   7.1 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    PHE A   5       89.21   -157.36                                    
REMARK 500    ASN A  24      -79.34   -101.94                                    
REMARK 500    ASP A 257     -137.56   -106.59                                    
REMARK 500    PHE B   5       91.05   -160.35                                    
REMARK 500    ASN B  24      -78.03    -98.48                                    
REMARK 500    ASN B 131      -44.75     76.05                                    
REMARK 500    ASP B 288      -71.05    -56.33                                    
REMARK 500    SER B 295     -168.93   -117.41                                    
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                              HG A 384  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASN A  76   OD1                                                     
REMARK 620 2 CYS A 214   SG   94.9                                               
REMARK 620 N                    1                                                
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              FE A 376  FE                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP A  84   OD1                                                     
REMARK 620 2 GLU A 115   OE1  94.0                                               
REMARK 620 3 HIS A 118   ND1 104.0  88.0                                         
REMARK 620 4 GLU A 238   OE2 155.8  78.1  98.6                                   
REMARK 620 N                    1     2     3                                    
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              FE A 377  FE                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 GLU A 115   OE2                                                     
REMARK 620 2 GLU A 204   OE2  96.2                                               
REMARK 620 3 GLU A 238   OE1 158.5  94.3                                         
REMARK 620 4 GLU A 238   OE2 101.4 151.5  62.3                                   
REMARK 620 5 HIS A 241   ND1 101.6 106.3  93.4  91.9                             
REMARK 620 N                    1     2     3     4                              
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG A 378  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 TYR A 194   OH                                                      
REMARK 620 2 ALA A 265   O    81.7                                               
REMARK 620 3 CYS A 272   SG   93.0 107.1                                         
REMARK 620 N                    1     2                                          
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG A 379  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 CYS A 196   O                                                       
REMARK 620 2 CYS A 196   SG   77.2                                               
REMARK 620 3  HG A 383  HG    67.2  40.3                                         
REMARK 620 N                    1     2                                          
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG A 383  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 CYS A 196   O                                                       
REMARK 620 2 CYS A 196   SG   73.5                                               
REMARK 620 N                    1                                                
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG A 380  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 VAL A 210   O                                                       
REMARK 620 2 CYS A 214   SG   94.7                                               
REMARK 620 3 CYS A 214   N    64.1  69.5                                         
REMARK 620 N                    1     2                                          
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG B 384  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASN B  76   OD1                                                     
REMARK 620 2 CYS B 214   SG  105.7                                               
REMARK 620 3 TRP B 286   NE1 100.2 143.9                                         
REMARK 620 N                    1     2                                          
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              FE B 376  FE                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP B  84   OD1                                                     
REMARK 620 2 ASP B  84   OD2  52.3                                               
REMARK 620 3 GLU B 115   OE2  82.2 131.4                                         
REMARK 620 4 HIS B 118   ND1 111.2  91.3  90.3                                   
REMARK 620 5 GLU B 238   OE2 148.9 147.3  80.8  94.7                             
REMARK 620 N                    1     2     3     4                              
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              FE B 377  FE                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 GLU B 115   OE1                                                     
REMARK 620 2 GLU B 204   OE1 135.3                                               
REMARK 620 3 GLU B 204   OE2  85.6  50.6                                         
REMARK 620 4 GLU B 238   OE1 163.6  52.2 102.6                                   
REMARK 620 5 GLU B 238   OE2 107.5 114.4 163.4  62.2                             
REMARK 620 6 HIS B 241   ND1  94.9 102.6 102.8  96.9  86.4                       
REMARK 620 N                    1     2     3     4     5                        
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG B 378  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 CYS B 196   SG                                                      
REMARK 620 2 CYS B 196   O    81.1                                               
REMARK 620 3  HG B 382  HG    42.7  69.0                                         
REMARK 620 N                    1     2                                          
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG B 382  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 CYS B 196   SG                                                      
REMARK 620 2 CYS B 196   O    74.8                                               
REMARK 620 N                    1                                                
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG B 380  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 VAL B 210   O                                                       
REMARK 620 2 CYS B 214   N    65.7                                               
REMARK 620 3 CYS B 214   SG   83.6  74.9                                         
REMARK 620 N                    1     2                                          
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG B 379  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 CYS B 268   SG                                                      
REMARK 620 2 CYS B 268   O    83.2                                               
REMARK 620 N                    1                                                
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG B 381  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 CYS B 272   O                                                       
REMARK 620 2 CYS B 272   SG   78.8                                               
REMARK 620 N                    1                                                
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              HG B 383  HG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 LYS B 284   NZ                                                      
REMARK 620 2 CYS B 305   SG   49.2                                               
REMARK 620 3 GLU B 309   OE2  72.5 117.6                                         
REMARK 620 4 GLU B 309   OE1  96.8 144.9  40.9                                   
REMARK 620 N                    1     2     3                                    
REMARK 800                                                                       
REMARK 800 SITE                                                                  
REMARK 800 SITE_IDENTIFIER: AC1                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE A 376                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC2                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE A 377                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC3                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE B 376                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC4                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE B 377                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC5                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 378                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC6                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 379                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC7                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 380                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC8                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 378                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC9                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 379                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC1                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 380                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC2                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 381                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC3                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 381                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC4                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 382                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC5                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 383                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC6                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 384                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC7                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 382                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC8                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 383                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: BC9                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 384                   
REMARK 900                                                                       
REMARK 900 RELATED ENTRIES                                                       
REMARK 900 RELATED ID: 1PIM   RELATED DB: PDB                                    
REMARK 900 RELATED ID: 1PIU   RELATED DB: PDB                                    
REMARK 900 RELATED ID: 1PIZ   RELATED DB: PDB                                    
REMARK 900 RELATED ID: 1PJ0   RELATED DB: PDB                                    
REMARK 900 RELATED ID: 1PJ1   RELATED DB: PDB                                    
REMARK 999                                                                       
REMARK 999 SEQUENCE                                                              
REMARK 999 THE CONFLICTS ARE DUE TO A MODELLING ERROR                            
REMARK 999 IN THE INITIAL MODEL.                                                 
DBREF  1PIY A    1   375  UNP    P69924   RIR2_ECOLI       1    375              
DBREF  1PIY B    1   375  UNP    P69924   RIR2_ECOLI       1    375              
SEQADV 1PIY ASN A  326  UNP  P69924    GLN   326 SEE REMARK 999                  
SEQADV 1PIY ASN B  326  UNP  P69924    GLN   326 SEE REMARK 999                  
SEQRES   1 A  375  ALA TYR THR THR PHE SER GLN THR LYS ASN ASP GLN LEU           
SEQRES   2 A  375  LYS GLU PRO MET PHE PHE GLY GLN PRO VAL ASN VAL ALA           
SEQRES   3 A  375  ARG TYR ASP GLN GLN LYS TYR ASP ILE PHE GLU LYS LEU           
SEQRES   4 A  375  ILE GLU LYS GLN LEU SER PHE PHE TRP ARG PRO GLU GLU           
SEQRES   5 A  375  VAL ASP VAL SER ARG ASP ARG ILE ASP TYR GLN ALA LEU           
SEQRES   6 A  375  PRO GLU HIS GLU LYS HIS ILE PHE ILE SER ASN LEU LYS           
SEQRES   7 A  375  TYR GLN THR LEU LEU ASP SER ILE GLN GLY ARG SER PRO           
SEQRES   8 A  375  ASN VAL ALA LEU LEU PRO LEU ILE SER ILE PRO GLU LEU           
SEQRES   9 A  375  GLU THR TRP VAL GLU THR TRP ALA PHE SER GLU THR ILE           
SEQRES  10 A  375  HIS SER ARG SER TYR THR HIS ILE ILE ARG ASN ILE VAL           
SEQRES  11 A  375  ASN ASP PRO SER VAL VAL PHE ASP ASP ILE VAL THR ASN           
SEQRES  12 A  375  GLU GLN ILE GLN LYS ARG ALA GLU GLY ILE SER SER TYR           
SEQRES  13 A  375  TYR ASP GLU LEU ILE GLU MET THR SER TYR TRP HIS LEU           
SEQRES  14 A  375  LEU GLY GLU GLY THR HIS THR VAL ASN GLY LYS THR VAL           
SEQRES  15 A  375  THR VAL SER LEU ARG GLU LEU LYS LYS LYS LEU TYR LEU           
SEQRES  16 A  375  CYS LEU MET SER VAL ASN ALA LEU GLU ALA ILE ARG PHE           
SEQRES  17 A  375  TYR VAL SER PHE ALA CYS SER PHE ALA PHE ALA GLU ARG           
SEQRES  18 A  375  GLU LEU MET GLU GLY ASN ALA LYS ILE ILE ARG LEU ILE           
SEQRES  19 A  375  ALA ARG ASP GLU ALA LEU HIS LEU THR GLY THR GLN HIS           
SEQRES  20 A  375  MET LEU ASN LEU LEU ARG SER GLY ALA ASP ASP PRO GLU           
SEQRES  21 A  375  MET ALA GLU ILE ALA GLU GLU CYS LYS GLN GLU CYS TYR           
SEQRES  22 A  375  ASP LEU PHE VAL GLN ALA ALA GLN GLN GLU LYS ASP TRP           
SEQRES  23 A  375  ALA ASP TYR LEU PHE ARG ASP GLY SER MET ILE GLY LEU           
SEQRES  24 A  375  ASN LYS ASP ILE LEU CYS GLN TYR VAL GLU TYR ILE THR           
SEQRES  25 A  375  ASN ILE ARG MET GLN ALA VAL GLY LEU ASP LEU PRO PHE           
SEQRES  26 A  375  ASN THR ARG SER ASN PRO ILE PRO TRP ILE ASN THR TRP           
SEQRES  27 A  375  LEU VAL SER ASP ASN VAL GLN VAL ALA PRO GLN GLU VAL           
SEQRES  28 A  375  GLU VAL SER SER TYR LEU VAL GLY GLN ILE ASP SER GLU           
SEQRES  29 A  375  VAL ASP THR ASP ASP LEU SER ASN PHE GLN LEU                   
SEQRES   1 B  375  ALA TYR THR THR PHE SER GLN THR LYS ASN ASP GLN LEU           
SEQRES   2 B  375  LYS GLU PRO MET PHE PHE GLY GLN PRO VAL ASN VAL ALA           
SEQRES   3 B  375  ARG TYR ASP GLN GLN LYS TYR ASP ILE PHE GLU LYS LEU           
SEQRES   4 B  375  ILE GLU LYS GLN LEU SER PHE PHE TRP ARG PRO GLU GLU           
SEQRES   5 B  375  VAL ASP VAL SER ARG ASP ARG ILE ASP TYR GLN ALA LEU           
SEQRES   6 B  375  PRO GLU HIS GLU LYS HIS ILE PHE ILE SER ASN LEU LYS           
SEQRES   7 B  375  TYR GLN THR LEU LEU ASP SER ILE GLN GLY ARG SER PRO           
SEQRES   8 B  375  ASN VAL ALA LEU LEU PRO LEU ILE SER ILE PRO GLU LEU           
SEQRES   9 B  375  GLU THR TRP VAL GLU THR TRP ALA PHE SER GLU THR ILE           
SEQRES  10 B  375  HIS SER ARG SER TYR THR HIS ILE ILE ARG ASN ILE VAL           
SEQRES  11 B  375  ASN ASP PRO SER VAL VAL PHE ASP ASP ILE VAL THR ASN           
SEQRES  12 B  375  GLU GLN ILE GLN LYS ARG ALA GLU GLY ILE SER SER TYR           
SEQRES  13 B  375  TYR ASP GLU LEU ILE GLU MET THR SER TYR TRP HIS LEU           
SEQRES  14 B  375  LEU GLY GLU GLY THR HIS THR VAL ASN GLY LYS THR VAL           
SEQRES  15 B  375  THR VAL SER LEU ARG GLU LEU LYS LYS LYS LEU TYR LEU           
SEQRES  16 B  375  CYS LEU MET SER VAL ASN ALA LEU GLU ALA ILE ARG PHE           
SEQRES  17 B  375  TYR VAL SER PHE ALA CYS SER PHE ALA PHE ALA GLU ARG           
SEQRES  18 B  375  GLU LEU MET GLU GLY ASN ALA LYS ILE ILE ARG LEU ILE           
SEQRES  19 B  375  ALA ARG ASP GLU ALA LEU HIS LEU THR GLY THR GLN HIS           
SEQRES  20 B  375  MET LEU ASN LEU LEU ARG SER GLY ALA ASP ASP PRO GLU           
SEQRES  21 B  375  MET ALA GLU ILE ALA GLU GLU CYS LYS GLN GLU CYS TYR           
SEQRES  22 B  375  ASP LEU PHE VAL GLN ALA ALA GLN GLN GLU LYS ASP TRP           
SEQRES  23 B  375  ALA ASP TYR LEU PHE ARG ASP GLY SER MET ILE GLY LEU           
SEQRES  24 B  375  ASN LYS ASP ILE LEU CYS GLN TYR VAL GLU TYR ILE THR           
SEQRES  25 B  375  ASN ILE ARG MET GLN ALA VAL GLY LEU ASP LEU PRO PHE           
SEQRES  26 B  375  ASN THR ARG SER ASN PRO ILE PRO TRP ILE ASN THR TRP           
SEQRES  27 B  375  LEU VAL SER ASP ASN VAL GLN VAL ALA PRO GLN GLU VAL           
SEQRES  28 B  375  GLU VAL SER SER TYR LEU VAL GLY GLN ILE ASP SER GLU           
SEQRES  29 B  375  VAL ASP THR ASP ASP LEU SER ASN PHE GLN LEU                   
HET     FE  A 376       1                                                        
HET     FE  A 377       1                                                        
HET     HG  A 378       1                                                        
HET     HG  A 379       1                                                        
HET     HG  A 380       1                                                        
HET     HG  A 381       1                                                        
HET     HG  A 382       1                                                        
HET     HG  A 383       1                                                        
HET     HG  A 384       1                                                        
HET     FE  B 376       1                                                        
HET     FE  B 377       1                                                        
HET     HG  B 378       1                                                        
HET     HG  B 379       1                                                        
HET     HG  B 380       1                                                        
HET     HG  B 381       1                                                        
HET     HG  B 382       1                                                        
HET     HG  B 383       1                                                        
HET     HG  B 384       1                                                        
HETNAM      FE FE (III) ION                                                      
HETNAM      HG MERCURY (II) ION                                                  
FORMUL   3   FE    4(FE 3+)                                                      
FORMUL   5   HG    14(HG 2+)                                                     
FORMUL  21  HOH   *248(H2 O)                                                     
HELIX    1   1 ASP A   11  GLU A   15  5                                   5     
HELIX    2   2 TYR A   33  PHE A   46  1                                  14     
HELIX    3   3 ARG A   49  VAL A   53  5                                   5     
HELIX    4   4 ARG A   57  LEU A   65  1                                   9     
HELIX    5   5 PRO A   66  LEU A   95  1                                  30     
HELIX    6   6 LEU A   96  ILE A   99  5                                   4     
HELIX    7   7 ILE A  101  ASN A  128  1                                  28     
HELIX    8   8 ASP A  132  ASN A  143  1                                  12     
HELIX    9   9 ASN A  143  GLU A  151  1                                   9     
HELIX   10  10 GLY A  152  GLY A  171  1                                  20     
HELIX   11  11 SER A  185  ILE A  206  1                                  22     
HELIX   12  12 ILE A  206  ARG A  221  1                                  16     
HELIX   13  13 MET A  224  GLY A  255  1                                  32     
HELIX   14  14 ASP A  258  CYS A  268  1                                  11     
HELIX   15  15 CYS A  268  TRP A  286  1                                  19     
HELIX   16  16 TRP A  286  PHE A  291  1                                   6     
HELIX   17  17 ASN A  300  VAL A  319  1                                  20     
HELIX   18  18 ILE A  332  LEU A  339  5                                   8     
HELIX   19  19 TYR B   33  PHE B   46  1                                  14     
HELIX   20  20 ARG B   49  VAL B   53  5                                   5     
HELIX   21  21 ARG B   57  LEU B   65  1                                   9     
HELIX   22  22 PRO B   66  LEU B   96  1                                  31     
HELIX   23  23 ILE B  101  ARG B  127  1                                  27     
HELIX   24  24 ASP B  132  ASN B  143  1                                  12     
HELIX   25  25 ASN B  143  GLY B  171  1                                  29     
HELIX   26  26 SER B  185  ILE B  206  1                                  22     
HELIX   27  27 ILE B  206  GLU B  220  1                                  15     
HELIX   28  28 MET B  224  GLY B  255  1                                  32     
HELIX   29  29 ASP B  258  CYS B  268  1                                  11     
HELIX   30  30 CYS B  268  PHE B  291  1                                  24     
HELIX   31  31 ASN B  300  VAL B  319  1                                  20     
HELIX   32  32 ILE B  332  TRP B  338  5                                   7     
SHEET    1   A 2 GLY A 173  VAL A 177  0                                         
SHEET    2   A 2 LYS A 180  VAL A 184 -1  O  VAL A 182   N  HIS A 175            
SHEET    1   B 2 GLY B 173  VAL B 177  0                                         
SHEET    2   B 2 LYS B 180  VAL B 184 -1  O  VAL B 182   N  HIS B 175            
LINK         OD1 ASN A  76                HG    HG A 384     1555   1555  3.09   
LINK         OD1 ASP A  84                FE    FE A 376     1555   1555  1.94   
LINK         OE1 GLU A 115                FE    FE A 376     1555   1555  2.14   
LINK         OE2 GLU A 115                FE    FE A 377     1555   1555  2.09   
LINK         ND1 HIS A 118                FE    FE A 376     1555   1555  2.10   
LINK         OH  TYR A 194                HG    HG A 378     1555   1555  2.83   
LINK         O   CYS A 196                HG    HG A 379     1555   1555  3.27   
LINK         SG  CYS A 196                HG    HG A 379     1555   1555  2.26   
LINK         O   CYS A 196                HG    HG A 383     1555   1555  3.53   
LINK         SG  CYS A 196                HG    HG A 383     1555   1555  2.01   
LINK         OE2 GLU A 204                FE    FE A 377     1555   1555  2.58   
LINK         O   VAL A 210                HG    HG A 380     1555   1555  2.93   
LINK         SG  CYS A 214                HG    HG A 380     1555   1555  2.25   
LINK         N   CYS A 214                HG    HG A 380     1555   1555  3.32   
LINK         SG  CYS A 214                HG    HG A 384     1555   1555  2.65   
LINK         OE2 GLU A 238                FE    FE A 376     1555   1555  2.17   
LINK         OE1 GLU A 238                FE    FE A 377     1555   1555  1.73   
LINK         OE2 GLU A 238                FE    FE A 377     1555   1555  2.36   
LINK         ND1 HIS A 241                FE    FE A 377     1555   1555  2.25   
LINK         O   ALA A 265                HG    HG A 378     1555   1555  3.49   
LINK         SG  CYS A 268                HG    HG A 382     1555   1555  3.03   
LINK         SG  CYS A 272                HG    HG A 378     1555   1555  2.33   
LINK         OE2 GLU A 309                HG    HG A 381     1555   1555  3.38   
LINK        HG    HG A 379                HG    HG A 383     1555   1555  3.11   
LINK         OD1 ASN B  76                HG    HG B 384     1555   1555  2.88   
LINK         OD1 ASP B  84                FE    FE B 376     1555   1555  1.93   
LINK         OD2 ASP B  84                FE    FE B 376     1555   1555  2.74   
LINK         OE2 GLU B 115                FE    FE B 376     1555   1555  2.16   
LINK         OE1 GLU B 115                FE    FE B 377     1555   1555  2.13   
LINK         ND1 HIS B 118                FE    FE B 376     1555   1555  2.09   
LINK         SG  CYS B 196                HG    HG B 378     1555   1555  2.21   
LINK         O   CYS B 196                HG    HG B 378     1555   1555  3.03   
LINK         SG  CYS B 196                HG    HG B 382     1555   1555  2.01   
LINK         O   CYS B 196                HG    HG B 382     1555   1555  3.39   
LINK         OE1 GLU B 204                FE    FE B 377     1555   1555  2.59   
LINK         OE2 GLU B 204                FE    FE B 377     1555   1555  2.55   
LINK         O   VAL B 210                HG    HG B 380     1555   1555  2.73   
LINK         N   CYS B 214                HG    HG B 380     1555   1555  3.19   
LINK         SG  CYS B 214                HG    HG B 380     1555   1555  2.51   
LINK         SG  CYS B 214                HG    HG B 384     1555   1555  1.63   
LINK         OE2 GLU B 238                FE    FE B 376     1555   1555  2.34   
LINK         OE1 GLU B 238                FE    FE B 377     1555   1555  1.79   
LINK         OE2 GLU B 238                FE    FE B 377     1555   1555  2.35   
LINK         ND1 HIS B 241                FE    FE B 377     1555   1555  2.20   
LINK         SG  CYS B 268                HG    HG B 379     1555   1555  2.50   
LINK         O   CYS B 268                HG    HG B 379     1555   1555  2.80   
LINK         O   CYS B 272                HG    HG B 381     1555   1555  2.64   
LINK         SG  CYS B 272                HG    HG B 381     1555   1555  2.66   
LINK         NZ  LYS B 284                HG    HG B 383     1555   1555  3.43   
LINK         NE1 TRP B 286                HG    HG B 384     1555   1555  3.49   
LINK         SG  CYS B 305                HG    HG B 383     1555   1555  2.39   
LINK         OE2 GLU B 309                HG    HG B 383     1555   1555  3.01   
LINK         OE1 GLU B 309                HG    HG B 383     1555   1555  3.25   
LINK        HG    HG B 378                HG    HG B 382     1555   1555  2.96   
SITE     1 AC1  6 ASP A  84  GLU A 115  HIS A 118  PHE A 208                     
SITE     2 AC1  6 GLU A 238   FE A 377                                           
SITE     1 AC2  5 GLU A 115  GLU A 204  GLU A 238  HIS A 241                     
SITE     2 AC2  5  FE A 376                                                      
SITE     1 AC3  6 ASP B  84  GLU B 115  HIS B 118  PHE B 208                     
SITE     2 AC3  6 GLU B 238   FE B 377                                           
SITE     1 AC4  5 GLU B 115  GLU B 204  GLU B 238  HIS B 241                     
SITE     2 AC4  5  FE B 376                                                      
SITE     1 AC5  3 TYR A 194  ALA A 265  CYS A 272                                
SITE     1 AC6  4 TYR A 157  CYS A 196  VAL A 200   HG A 383                     
SITE     1 AC7  3 VAL A 210  CYS A 214   HG A 384                                
SITE     1 AC8  5 TYR B 156  TYR B 157  CYS B 196  VAL B 200                     
SITE     2 AC8  5  HG B 382                                                      
SITE     1 AC9  3 TYR B 194  CYS B 268  CYS B 272                                
SITE     1 BC1  4 VAL B 210  ALA B 213  CYS B 214  LEU B 304                     
SITE     1 BC2  2 CYS A 305  GLU A 309                                           
SITE     1 BC3  4 MET B 198  CYS B 272  LEU B 275  PHE B 276                     
SITE     1 BC4  2 CYS A 268  GLU A 271                                           
SITE     1 BC5  4 TYR A 157  CYS A 196  VAL A 200   HG A 379                     
SITE     1 BC6  4 ASN A  76  ARG A 149  CYS A 214   HG A 380                     
SITE     1 BC7  4 TYR B 157  CYS B 196  VAL B 200   HG B 378                     
SITE     1 BC8  3 LYS B 284  CYS B 305  GLU B 309                                
SITE     1 BC9  4 ASN B  76  CYS B 214  TRP B 286  LEU B 290                     
CRYST1   73.900   84.600  114.100  90.00  90.00  90.00 P 21 21 21    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      0.013532  0.000000  0.000000        0.00000                          
SCALE2      0.000000  0.011820  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.008764        0.00000                          
END