HEADER    ELECTRON TRANSPORT                      18-JAN-00   1DUR              
TITLE     REPLACEMENT FOR 1FDX 2(4FE4S) FERREDOXIN FROM (NOW) PEPTOSTREPTOCOCCUS
TITLE    2 ASACCHAROLYTICUS                                                     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 2[4FE-4S] FERREDOXIN;                                      
COMPND   3 CHAIN: A                                                             
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PEPTONIPHILUS ASACCHAROLYTICUS;                 
SOURCE   3 ORGANISM_TAXID: 1258;                                                
SOURCE   4 OTHER_DETAILS: FORMERLY CALLED PEPTOCOCCUS AEROGENES                 
KEYWDS    TWO 4FE-4S CLUSTERS, ELECTRON TRANSPORT                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    E.T.ADMAN,L.C.SIEKER                                                  
REVDAT   9   07-FEB-24 1DUR    1       REMARK LINK                              
REVDAT   8   04-APR-18 1DUR    1       REMARK                                   
REVDAT   7   04-OCT-17 1DUR    1       REMARK                                   
REVDAT   6   13-AUG-14 1DUR    1       REMARK VERSN                             
REVDAT   5   24-MAR-09 1DUR    1       ATOM   CONECT                            
REVDAT   4   24-FEB-09 1DUR    1       VERSN                                    
REVDAT   3   20-DEC-00 1DUR    1       REMARK                                   
REVDAT   2   28-JUN-00 1DUR    1       SOURCE                                   
REVDAT   1   29-MAR-00 1DUR    0                                                
SPRSDE     29-MAR-00 1DUR      1FDX                                             
JRNL        AUTH   E.T.ADMAN,L.C.SIEKER                                         
JRNL        TITL   THE 2[4FE-4S] FERREDOXINS                                    
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   G.BACKES,Y.MINO,T.M.LOEHR,T.E.MEYER,M.CUSANOVICH,            
REMARK   1  AUTH 2 W.V.SWEENEY,E.T.ADMAN,J.SANDERS-LOEHR                        
REMARK   1  TITL   THE ENVIRONMENT OF FE4S4 CLUSTERS IN FERREDOXINS AND         
REMARK   1  TITL 2 HIGH-POTENTIAL IRON PROTEINS. NEW INFORMATION FROM X-RAY     
REMARK   1  TITL 3 CRYSTALLOGRAPHY AND RESONANCE RAMAN SPECTROSCOPY             
REMARK   1  REF    J.AM.CHEM.SOC.                V. 113  2055 1991              
REMARK   1  REFN                   ISSN 0002-7863                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   E.T.ADMAN,L.C.SIEKER,L.H.JENSEN                              
REMARK   1  TITL   STRUCTURE OF PEPTOCOCCUS AEROGENES FERREDOXIN REFINEMENT AT  
REMARK   1  TITL 2 2 A RESOLUTION                                               
REMARK   1  REF    J.BIOL.CHEM.                  V. 251  3801 1976              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   E.T.ADMAN,L.C.SIEKER,L.H.JENSEN                              
REMARK   1  TITL   THE STRUCTURE OF A BACTERIAL FERREDOXIN                      
REMARK   1  REF    J.BIOL.CHEM.                  V. 248  3987 1973              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.843                                         
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 2963                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.155                           
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
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            : 379                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 16                                      
REMARK   3   SOLVENT ATOMS            : 93                                      
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) : NULL                            
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  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: USED XPLOR POSITIONAL AND INDIVIDUAL B    
REMARK   3  REFINEMENT.                                                         
REMARK   3  REFINEMENT WITH "MODERN" TOOLS (PROLSQ, THEN XPLOR)                 
REMARK   3  REVEALED A NEW CYSTEINE IN POSITION 22, SUBSEQUENTLY                
REMARK   3  VERIFIED BY PARTIAL SEQUENCING. SEE CITATION 1.                     
REMARK   3  THE CLOSE CONTACTS LISTED IN REMARK 500 ARE WATERS                  
REMARK   3  THAT ARE REGARDED AS ALTERNATIVE SITES, NOT ALL                     
REMARK   3  OCCUPIED SIMULTANEOUSLY.                                            
REMARK   4                                                                      
REMARK   4 1DUR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-JAN-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000010387.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-JAN-72                          
REMARK 200  TEMPERATURE           (KELVIN) : 298.0                              
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 2                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : SEALED TUBE                        
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : OTHER                              
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : DIFFRACTOMETER                     
REMARK 200  DETECTOR MANUFACTURER          : PICKER                             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : PICKER                             
REMARK 200  DATA SCALING SOFTWARE          : LAB                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 3220                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 10.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.05000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: LAB                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 39.67                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.04                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 3.3-3.5M AMMONIUM SULFATE, TRIS          
REMARK 280  -CHLORIDE BUFFER, PH 7.5, EVAPORATION, TEMPERATURE 277.0K           
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       15.26000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       19.68500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       18.87500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       19.68500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       15.26000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       18.87500            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 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     SER A  27    OG                                                  
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   O    HOH A  1005     O    HOH A  1055              2.19            
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                             SF4 A  56  FE1                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A   8   SG                                                     
REMARK 620 2 SF4 A  56   S2  118.3                                              
REMARK 620 3 SF4 A  56   S3  111.6 104.8                                        
REMARK 620 4 SF4 A  56   S4  115.9 103.1 101.2                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             SF4 A  56  FE2                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  11   SG                                                     
REMARK 620 2 SF4 A  56   S1  104.1                                              
REMARK 620 3 SF4 A  56   S3  120.2 100.4                                        
REMARK 620 4 SF4 A  56   S4  118.1 109.0 103.4                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             SF4 A  56  FE4                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  14   SG                                                     
REMARK 620 2 SF4 A  56   S1  111.0                                              
REMARK 620 3 SF4 A  56   S2  123.9 102.6                                        
REMARK 620 4 SF4 A  56   S3  108.4 102.3 106.5                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             SF4 A  57  FE3                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  18   SG                                                     
REMARK 620 2 SF4 A  57   S1  110.8                                              
REMARK 620 3 SF4 A  57   S2  125.3 101.4                                        
REMARK 620 4 SF4 A  57   S4  112.1 102.0 102.4                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             SF4 A  57  FE1                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  36   SG                                                     
REMARK 620 2 SF4 A  57   S2  119.0                                              
REMARK 620 3 SF4 A  57   S3  105.1 102.0                                        
REMARK 620 4 SF4 A  57   S4  120.4 105.4 101.8                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             SF4 A  57  FE2                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  39   SG                                                     
REMARK 620 2 SF4 A  57   S1  101.5                                              
REMARK 620 3 SF4 A  57   S3  120.2 100.6                                        
REMARK 620 4 SF4 A  57   S4  118.4 110.6 104.0                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             SF4 A  57  FE4                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  42   SG                                                     
REMARK 620 2 SF4 A  57   S1  111.6                                              
REMARK 620 3 SF4 A  57   S2  123.4 104.3                                        
REMARK 620 4 SF4 A  57   S3  106.4 102.7 106.4                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             SF4 A  56  FE3                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  46   SG                                                     
REMARK 620 2 SF4 A  56   S1  116.5                                              
REMARK 620 3 SF4 A  56   S2  118.6 101.5                                        
REMARK 620 4 SF4 A  56   S4  108.9 108.0 101.9                                  
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 SF4 A 56                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SF4 A 57                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1FDX   RELATED DB: PDB                                   
REMARK 900 CURRENT DEPOSITION IS REPLACEMENT FOR 1FDX                           
DBREF  1DUR A    1    55  UNP    P00193   FER_PEPAS        1     55             
SEQRES   1 A   55  ALA TYR VAL ILE ASN ASP SER CYS ILE ALA CYS GLY ALA          
SEQRES   2 A   55  CYS LYS PRO GLU CYS PRO VAL ASN CYS ILE GLN GLU GLY          
SEQRES   3 A   55  SER ILE TYR ALA ILE ASP ALA ASP SER CYS ILE ASP CYS          
SEQRES   4 A   55  GLY SER CYS ALA SER VAL CYS PRO VAL GLY ALA PRO ASN          
SEQRES   5 A   55  PRO GLU ASP                                                  
HET    SF4  A  56       8                                                       
HET    SF4  A  57       8                                                       
HETNAM     SF4 IRON/SULFUR CLUSTER                                              
FORMUL   2  SF4    2(FE4 S4)                                                    
FORMUL   4  HOH   *93(H2 O)                                                     
HELIX    1   1 CYS A   14  CYS A   18  5                                   5    
HELIX    2   2 GLY A   40  CYS A   46  1                                   7    
SHEET    1   A 2 TYR A   2  ILE A   4  0                                        
SHEET    2   A 2 PRO A  51  PRO A  53 -1  O  ASN A  52   N  VAL A   3           
SHEET    1   B 2 ILE A  23  GLN A  24  0                                        
SHEET    2   B 2 ALA A  30  ILE A  31 -1  O  ALA A  30   N  GLN A  24           
LINK         SG  CYS A   8                FE1  SF4 A  56     1555   1555  2.31  
LINK         SG  CYS A  11                FE2  SF4 A  56     1555   1555  2.17  
LINK         SG  CYS A  14                FE4  SF4 A  56     1555   1555  2.25  
LINK         SG  CYS A  18                FE3  SF4 A  57     1555   1555  2.21  
LINK         SG  CYS A  36                FE1  SF4 A  57     1555   1555  2.24  
LINK         SG  CYS A  39                FE2  SF4 A  57     1555   1555  2.34  
LINK         SG  CYS A  42                FE4  SF4 A  57     1555   1555  2.24  
LINK         SG  CYS A  46                FE3  SF4 A  56     1555   1555  2.20  
SITE     1 AC1  7 CYS A   8  ILE A   9  CYS A  11  GLY A  12                    
SITE     2 AC1  7 CYS A  14  CYS A  46  VAL A  48                               
SITE     1 AC2  8 CYS A  18  CYS A  22  ILE A  31  CYS A  36                    
SITE     2 AC2  8 ILE A  37  CYS A  39  GLY A  40  CYS A  42                    
CRYST1   30.520   37.750   39.370  90.00  90.00  90.00 P 21 21 21    4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.032765  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.026490  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.025400        0.00000