HEADER    OXIDOREDUCTASE                          30-SEP-97   1AV8              
TITLE     RIBONUCLEOTIDE REDUCTASE R2 SUBUNIT FROM E. COLI                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RIBONUCLEOTIDE REDUCTASE R2;                               
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 EC: 1.17.4.1;                                                        
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    OXIDOREDUCTASE, DNA REPLICATION                                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.HAN,A.ARVAI,J.A.TAINER                                              
REVDAT   7   22-MAY-24 1AV8    1       REMARK                                   
REVDAT   6   02-AUG-23 1AV8    1       REMARK LINK                              
REVDAT   5   27-JUN-18 1AV8    1       REMARK LINK                              
REVDAT   4   24-FEB-09 1AV8    1       VERSN                                    
REVDAT   3   08-FEB-05 1AV8    1       JRNL                                     
REVDAT   2   18-NOV-98 1AV8    2       COMPND REMARK JRNL   KEYWDS              
REVDAT   2 2                   2       CONECT LINK                              
REVDAT   1   28-OCT-98 1AV8    0                                                
JRNL        AUTH   W.TONG,D.BURDI,P.RIGGS-GELASCO,S.CHEN,D.EDMONDSON,B.H.HUYNH, 
JRNL        AUTH 2 J.STUBBE,S.HAN,A.ARVAI,J.A.TAINER                            
JRNL        TITL   CHARACTERIZATION OF Y122F R2 OF ESCHERICHIA COLI             
JRNL        TITL 2 RIBONUCLEOTIDE REDUCTASE BY TIME-RESOLVED PHYSICAL           
JRNL        TITL 3 BIOCHEMICAL METHODS AND X-RAY CRYSTALLOGRAPHY.               
JRNL        REF    BIOCHEMISTRY                  V.  37  5840 1998              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   9558317                                                      
JRNL        DOI    10.1021/BI9728811                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   P.NORDLUND,H.EKLUND                                          
REMARK   1  TITL   STRUCTURE AND FUNCTION OF THE ESCHERICHIA COLI               
REMARK   1  TITL 2 RIBONUCLEOTIDE REDUCTASE PROTEIN R2                          
REMARK   1  REF    J.MOL.BIOL.                   V. 232   123 1993              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.851                                         
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 7.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 1.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 96.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 29263                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.139                           
REMARK   3   FREE R VALUE                     : 0.192                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 6.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 5578                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 6                                       
REMARK   3   SOLVENT ATOMS            : 137                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.019                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.345                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 20.88                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.356                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 2.650 ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : 3.930 ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1AV8 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_1000171299.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : AUG-96                             
REMARK 200  TEMPERATURE           (KELVIN) : 103                                
REMARK 200  PH                             : 7.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRL                               
REMARK 200  BEAMLINE                       : BL7-1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.08                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 299329                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 100.000                            
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.0                               
REMARK 200  DATA REDUNDANCY                : 5.500                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.08900                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.92                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 91.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.30                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.28400                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 10.00                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: X-PLOR 3.851                                          
REMARK 200 STARTING MODEL: 1RIB                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 65.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.50                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN WAS CRYSTALLIZED FROM 80%        
REMARK 280  SATURATED NACL, NEAR PHYSIOLOGICAL PH (PH 7.6)                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61                             
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+5/6                                            
REMARK 290       6555   X-Y,X,Z+1/6                                             
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       36.86667            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       73.73333            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       55.30000            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       92.16667            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       18.43333            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 6480 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 23050 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -63.0 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 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     ARG A   57   CZ   NH1  NH2                                       
REMARK 480     GLY A  179   O                                                   
REMARK 480     LYS A  180   CE   NZ                                             
REMARK 480     GLU B  151   OE1  OE2                                            
REMARK 480     GLY B  179   O                                                   
REMARK 480     THR B  181   O                                                   
REMARK 480     ARG B  253   NH1  NH2                                            
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    LEU A 242   CA  -  CB  -  CG  ANGL. DEV. =  17.2 DEGREES          
REMARK 500    LEU B 242   CA  -  CB  -  CG  ANGL. DEV. =  17.3 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       95.13   -161.47                                   
REMARK 500    ASN A  24      -71.85   -105.15                                   
REMARK 500    PHE A  47      124.36    -35.76                                   
REMARK 500    ASP A 257      -81.29    -97.93                                   
REMARK 500    SER A 295     -165.12   -108.13                                   
REMARK 500    ASP B  34        6.31    -68.67                                   
REMARK 500    ASN B 143      102.28    -28.19                                   
REMARK 500    ALA B 256        1.44    -69.61                                   
REMARK 500    ASP B 257      -66.95   -121.51                                   
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                             FEO A 401  FE1                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  84   OD1                                                    
REMARK 620 2 FEO A 401   O   136.3                                              
REMARK 620 3 ASP A  84   OD2  52.1 158.3                                        
REMARK 620 4 GLU A 115   OE1  77.0  92.3 109.4                                  
REMARK 620 5 HIS A 118   ND1 136.5  86.7  91.0  99.4                            
REMARK 620 6 HOH A1202   O   112.2  79.7  78.8 170.5  75.3                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FEO A 401  FE2                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 115   OE2                                                    
REMARK 620 2 FEO A 401   O   107.0                                              
REMARK 620 3 GLU A 204   OE2  84.6 166.7                                        
REMARK 620 4 GLU A 238   OE1 172.6  80.4  88.1                                  
REMARK 620 5 HIS A 241   ND1  84.9  87.3  87.2  95.0                            
REMARK 620 6 HOH A1201   O    81.7  98.5  89.5  98.1 166.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FEO B 402  FE1                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B  84   OD2                                                    
REMARK 620 2 FEO B 402   O   163.7                                              
REMARK 620 3 ASP B  84   OD1  51.9 131.4                                        
REMARK 620 4 GLU B 115   OE1 106.5  88.5  70.8                                  
REMARK 620 5 HIS B 118   ND1  90.2  91.1 136.6 108.0                            
REMARK 620 6 HOH B1204   O    81.2  82.5 100.5 158.1  92.1                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FEO B 402  FE2                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU B 115   OE2                                                    
REMARK 620 2 FEO B 402   O    95.1                                              
REMARK 620 3 GLU B 204   OE2  80.1 174.3                                        
REMARK 620 4 GLU B 238   OE1 177.5  83.3 101.6                                  
REMARK 620 5 HIS B 241   ND1  87.5  77.9  98.8  94.1                            
REMARK 620 6 HOH B1203   O    78.2  96.6  85.4  99.9 164.3                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FEO A 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FEO B 402                 
DBREF  1AV8 A    1   340  UNP    P69924   RIR2_ECOLI       1    340             
DBREF  1AV8 B    1   340  UNP    P69924   RIR2_ECOLI       1    340             
SEQRES   1 A  340  ALA TYR THR THR PHE SER GLN THR LYS ASN ASP GLN LEU          
SEQRES   2 A  340  LYS GLU PRO MET PHE PHE GLY GLN PRO VAL ASN VAL ALA          
SEQRES   3 A  340  ARG TYR ASP GLN GLN LYS TYR ASP ILE PHE GLU LYS LEU          
SEQRES   4 A  340  ILE GLU LYS GLN LEU SER PHE PHE TRP ARG PRO GLU GLU          
SEQRES   5 A  340  VAL ASP VAL SER ARG ASP ARG ILE ASP TYR GLN ALA LEU          
SEQRES   6 A  340  PRO GLU HIS GLU LYS HIS ILE PHE ILE SER ASN LEU LYS          
SEQRES   7 A  340  TYR GLN THR LEU LEU ASP SER ILE GLN GLY ARG SER PRO          
SEQRES   8 A  340  ASN VAL ALA LEU LEU PRO LEU ILE SER ILE PRO GLU LEU          
SEQRES   9 A  340  GLU THR TRP VAL GLU THR TRP ALA PHE SER GLU THR ILE          
SEQRES  10 A  340  HIS SER ARG SER TYR THR HIS ILE ILE ARG ASN ILE VAL          
SEQRES  11 A  340  ASN ASP PRO SER VAL VAL PHE ASP ASP ILE VAL THR ASN          
SEQRES  12 A  340  GLU GLN ILE GLN LYS ARG ALA GLU GLY ILE SER SER TYR          
SEQRES  13 A  340  TYR ASP GLU LEU ILE GLU MET THR SER TYR TRP HIS LEU          
SEQRES  14 A  340  LEU GLY GLU GLY THR HIS THR VAL ASN GLY LYS THR VAL          
SEQRES  15 A  340  THR VAL SER LEU ARG GLU LEU LYS LYS LYS LEU TYR LEU          
SEQRES  16 A  340  CYS LEU MET SER VAL ASN ALA LEU GLU ALA ILE ARG PHE          
SEQRES  17 A  340  TYR VAL SER PHE ALA CYS SER PHE ALA PHE ALA GLU ARG          
SEQRES  18 A  340  GLU LEU MET GLU GLY ASN ALA LYS ILE ILE ARG LEU ILE          
SEQRES  19 A  340  ALA ARG ASP GLU ALA LEU HIS LEU THR GLY THR GLN HIS          
SEQRES  20 A  340  MET LEU ASN LEU LEU ARG SER GLY ALA ASP ASP PRO GLU          
SEQRES  21 A  340  MET ALA GLU ILE ALA GLU GLU CYS LYS GLN GLU CYS TYR          
SEQRES  22 A  340  ASP LEU PHE VAL GLN ALA ALA GLN GLN GLU LYS ASP TRP          
SEQRES  23 A  340  ALA ASP TYR LEU PHE ARG ASP GLY SER MET ILE GLY LEU          
SEQRES  24 A  340  ASN LYS ASP ILE LEU CYS GLN TYR VAL GLU TYR ILE THR          
SEQRES  25 A  340  ASN ILE ARG MET GLN ALA VAL GLY LEU ASP LEU PRO PHE          
SEQRES  26 A  340  GLN THR ARG SER ASN PRO ILE PRO TRP ILE ASN THR TRP          
SEQRES  27 A  340  LEU VAL                                                      
SEQRES   1 B  340  ALA TYR THR THR PHE SER GLN THR LYS ASN ASP GLN LEU          
SEQRES   2 B  340  LYS GLU PRO MET PHE PHE GLY GLN PRO VAL ASN VAL ALA          
SEQRES   3 B  340  ARG TYR ASP GLN GLN LYS TYR ASP ILE PHE GLU LYS LEU          
SEQRES   4 B  340  ILE GLU LYS GLN LEU SER PHE PHE TRP ARG PRO GLU GLU          
SEQRES   5 B  340  VAL ASP VAL SER ARG ASP ARG ILE ASP TYR GLN ALA LEU          
SEQRES   6 B  340  PRO GLU HIS GLU LYS HIS ILE PHE ILE SER ASN LEU LYS          
SEQRES   7 B  340  TYR GLN THR LEU LEU ASP SER ILE GLN GLY ARG SER PRO          
SEQRES   8 B  340  ASN VAL ALA LEU LEU PRO LEU ILE SER ILE PRO GLU LEU          
SEQRES   9 B  340  GLU THR TRP VAL GLU THR TRP ALA PHE SER GLU THR ILE          
SEQRES  10 B  340  HIS SER ARG SER TYR THR HIS ILE ILE ARG ASN ILE VAL          
SEQRES  11 B  340  ASN ASP PRO SER VAL VAL PHE ASP ASP ILE VAL THR ASN          
SEQRES  12 B  340  GLU GLN ILE GLN LYS ARG ALA GLU GLY ILE SER SER TYR          
SEQRES  13 B  340  TYR ASP GLU LEU ILE GLU MET THR SER TYR TRP HIS LEU          
SEQRES  14 B  340  LEU GLY GLU GLY THR HIS THR VAL ASN GLY LYS THR VAL          
SEQRES  15 B  340  THR VAL SER LEU ARG GLU LEU LYS LYS LYS LEU TYR LEU          
SEQRES  16 B  340  CYS LEU MET SER VAL ASN ALA LEU GLU ALA ILE ARG PHE          
SEQRES  17 B  340  TYR VAL SER PHE ALA CYS SER PHE ALA PHE ALA GLU ARG          
SEQRES  18 B  340  GLU LEU MET GLU GLY ASN ALA LYS ILE ILE ARG LEU ILE          
SEQRES  19 B  340  ALA ARG ASP GLU ALA LEU HIS LEU THR GLY THR GLN HIS          
SEQRES  20 B  340  MET LEU ASN LEU LEU ARG SER GLY ALA ASP ASP PRO GLU          
SEQRES  21 B  340  MET ALA GLU ILE ALA GLU GLU CYS LYS GLN GLU CYS TYR          
SEQRES  22 B  340  ASP LEU PHE VAL GLN ALA ALA GLN GLN GLU LYS ASP TRP          
SEQRES  23 B  340  ALA ASP TYR LEU PHE ARG ASP GLY SER MET ILE GLY LEU          
SEQRES  24 B  340  ASN LYS ASP ILE LEU CYS GLN TYR VAL GLU TYR ILE THR          
SEQRES  25 B  340  ASN ILE ARG MET GLN ALA VAL GLY LEU ASP LEU PRO PHE          
SEQRES  26 B  340  GLN THR ARG SER ASN PRO ILE PRO TRP ILE ASN THR TRP          
SEQRES  27 B  340  LEU VAL                                                      
HET    FEO  A 401       3                                                       
HET    FEO  B 402       3                                                       
HETNAM     FEO MU-OXO-DIIRON                                                    
FORMUL   3  FEO    2(FE2 O)                                                     
FORMUL   5  HOH   *137(H2 O)                                                    
HELIX    1   1 ASP A   34  PHE A   46  1                                  13    
HELIX    2   2 PRO A   50  GLU A   52  5                                   3    
HELIX    3   3 SER A   56  ALA A   64  1                                   9    
HELIX    4   4 GLU A   67  ALA A   94  1                                  28    
HELIX    5   5 LEU A   96  LEU A   98  5                                   3    
HELIX    6   6 PRO A  102  ILE A  129  1                                  28    
HELIX    7   7 PRO A  133  THR A  142  1                                  10    
HELIX    8   8 GLU A  144  LEU A  170  1                                  27    
HELIX    9   9 LEU A  186  ALA A  205  1                                  20    
HELIX   10  10 ARG A  207  ARG A  221  1                                  15    
HELIX   11  11 GLU A  225  SER A  254  1                                  30    
HELIX   12  12 PRO A  259  GLU A  267  1                                   9    
HELIX   13  13 LYS A  269  PHE A  291  1                                  23    
HELIX   14  14 LYS A  301  VAL A  319  1                                  19    
HELIX   15  15 PRO A  333  THR A  337  5                                   5    
HELIX   16  16 GLN B   12  LYS B   14  5                                   3    
HELIX   17  17 ILE B   35  SER B   45  1                                  11    
HELIX   18  18 PRO B   50  GLU B   52  5                                   3    
HELIX   19  19 ARG B   57  ALA B   64  1                                   8    
HELIX   20  20 GLU B   67  LEU B   98  1                                  32    
HELIX   21  21 PRO B  102  ILE B  129  1                                  28    
HELIX   22  22 PRO B  133  THR B  142  1                                  10    
HELIX   23  23 GLU B  144  LEU B  170  1                                  27    
HELIX   24  24 LEU B  186  ALA B  205  1                                  20    
HELIX   25  25 ARG B  207  ARG B  221  1                                  15    
HELIX   26  26 GLU B  225  ARG B  253  1                                  29    
HELIX   27  27 PRO B  259  PHE B  291  1                                  33    
HELIX   28  28 LYS B  301  VAL B  319  1                                  19    
HELIX   29  29 PRO B  333  TRP B  338  5                                   6    
SHEET    1   A 2 GLY A 173  VAL A 177  0                                        
SHEET    2   A 2 LYS A 180  VAL A 184 -1  N  VAL A 184   O  GLY A 173           
SHEET    1   B 2 GLY B 173  THR B 176  0                                        
SHEET    2   B 2 THR B 181  VAL B 184 -1  N  VAL B 184   O  GLY B 173           
LINK         OD1 ASP A  84                FE1  FEO A 401     1555   1555  2.50  
LINK         OD2 ASP A  84                FE1  FEO A 401     1555   1555  2.48  
LINK         OE1 GLU A 115                FE1  FEO A 401     1555   1555  1.96  
LINK         OE2 GLU A 115                FE2  FEO A 401     1555   1555  2.00  
LINK         ND1 HIS A 118                FE1  FEO A 401     1555   1555  2.04  
LINK         OE2 GLU A 204                FE2  FEO A 401     1555   1555  1.95  
LINK         OE1 GLU A 238                FE2  FEO A 401     1555   1555  1.98  
LINK         ND1 HIS A 241                FE2  FEO A 401     1555   1555  2.07  
LINK        FE2  FEO A 401                 O   HOH A1201     1555   1555  2.20  
LINK        FE1  FEO A 401                 O   HOH A1202     1555   1555  2.11  
LINK         OD2 ASP B  84                FE1  FEO B 402     1555   1555  2.49  
LINK         OD1 ASP B  84                FE1  FEO B 402     1555   1555  2.49  
LINK         OE1 GLU B 115                FE1  FEO B 402     1555   1555  1.96  
LINK         OE2 GLU B 115                FE2  FEO B 402     1555   1555  2.10  
LINK         ND1 HIS B 118                FE1  FEO B 402     1555   1555  1.97  
LINK         OE2 GLU B 204                FE2  FEO B 402     1555   1555  1.91  
LINK         OE1 GLU B 238                FE2  FEO B 402     1555   1555  1.89  
LINK         ND1 HIS B 241                FE2  FEO B 402     1555   1555  2.11  
LINK        FE2  FEO B 402                 O   HOH B1203     1555   1555  2.07  
LINK        FE1  FEO B 402                 O   HOH B1204     1555   1555  2.26  
SITE     1 AC1  8 ASP A  84  GLU A 115  HIS A 118  GLU A 204                    
SITE     2 AC1  8 GLU A 238  HIS A 241  HOH A1201  HOH A1202                    
SITE     1 AC2  8 ASP B  84  GLU B 115  HIS B 118  GLU B 204                    
SITE     2 AC2  8 GLU B 238  HIS B 241  HOH B1203  HOH B1204                    
CRYST1  139.700  139.700  110.600  90.00  90.00 120.00 P 61         12          
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      0.007158  0.004133  0.000000        0.00000                         
SCALE2      0.000000  0.008266  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009042        0.00000                         
MTRIX1   1 -0.394139  0.916991  0.061508      -14.59223    1                    
MTRIX2   1  0.918337  0.395587 -0.012954        8.91088    1                    
MTRIX3   1 -0.036210  0.051380 -0.998023       18.33630    1