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Database: PDB
Entry: 1H9Y
LinkDB: 1H9Y
Original site: 1H9Y 
HEADER    OXIDOREDUCTASE                          23-MAR-01   1H9Y              
TITLE     CYTOCHROME CD1 NITRITE REDUCTASE, REDUCED FORM COMPLEXED TO CN        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CYTOCHROME CD1 NITRITE REDUCTASE;                          
COMPND   3 CHAIN: A, B                                                          
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PARACOCCUS PANTOTROPHUS;                        
SOURCE   3 ORGANISM_TAXID: 82367;                                               
SOURCE   4 CELLULAR_LOCATION: PERIPLASM;                                        
SOURCE   5 OTHER_DETAILS: ORGANISM FORMERLY KNOWN AS THIOSPHAERA PANTOTROPHA    
KEYWDS    ENZYME, NITRITE REDUCTASE, OXIDOREDUCTASE, CN                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.SJOGREN,J.HAJDU                                                     
REVDAT   6   13-DEC-23 1H9Y    1       REMARK LINK                              
REVDAT   5   08-MAY-19 1H9Y    1       REMARK LINK                              
REVDAT   4   17-JAN-18 1H9Y    1       REMARK                                   
REVDAT   3   24-FEB-09 1H9Y    1       VERSN                                    
REVDAT   2   12-JUN-06 1H9Y    1       SHEET  LINK                              
REVDAT   1   09-AUG-01 1H9Y    0                                                
JRNL        AUTH   T.SJOGREN,J.HAJDU                                            
JRNL        TITL   THE STRUCTURE OF AN ALTERNATIVE FORM OF PARACOCCUS           
JRNL        TITL 2 PANTOTROPHUS CYTOCHROME CD1 NITRITE REDUCTASE                
JRNL        REF    J.BIOL.CHEM.                  V. 276 29450 2001              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   11373294                                                     
JRNL        DOI    10.1074/JBC.M103657200                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   P.A.WILLIAMS,V.FULOP,E.F.GARMAN,N.F.W.SAUNDERS,S.J.FERGUSON, 
REMARK   1  AUTH 2 J.HAJDU                                                      
REMARK   1  TITL   HAEM LIGAND-SWITCHING DURING CATALYSIS IN CRYSTALS OF A      
REMARK   1  TITL 2 NITROGEN CYCLE ENZYME                                        
REMARK   1  REF    NATURE                        V. 389   406 1997              
REMARK   1  REFN                   ISSN 0028-0836                               
REMARK   1  PMID   9311786                                                      
REMARK   1  DOI    10.1038/38775                                                
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   V.FULOP,J.W.B.MOIR,N.F.W.SAUNDERS,S.J.FERGUSON,J.HAJDU       
REMARK   1  TITL   THE ANATOMY OF A BIFUNCTIONAL ENZYME: STRUCTURAL BASIS FOR   
REMARK   1  TITL 2 REDUCTION OF OXYGEN TO WATER AND SYNTHESIS OF NITRIC OXIDE   
REMARK   1  TITL 3 BY CYTOCHROME CD1                                            
REMARK   1  REF    CELL(CAMBRIDGE,MASS.)         V.  81   369 1995              
REMARK   1  REFN                   ISSN 0092-8674                               
REMARK   1  PMID   7736589                                                      
REMARK   1  DOI    10.1016/0092-8674(95)90390-9                                 
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 83427                          
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 + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.238                           
REMARK   3   FREE R VALUE                     : 0.269                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 8107                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 202                                     
REMARK   3   SOLVENT ATOMS            : 242                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 43.60                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 40.20                          
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.259         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.219         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.155         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 6.610         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.080 ; 0.020               
REMARK   3    ANGLE DISTANCE                  (A) : 0.026 ; 0.040               
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.024 ; 0.050               
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : 0.005 ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.980 ; 0.150               
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : 0.184 ; 0.300               
REMARK   3    MULTIPLE TORSION                (A) : 0.243 ; 0.300               
REMARK   3    H-BOND (X...Y)                  (A) : 0.160 ; 0.300               
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : 15.000; NULL                
REMARK   3    PLANAR                    (DEGREES) : 3.000 ; 7.000               
REMARK   3    STAGGERED                 (DEGREES) : 14.900; 15.000              
REMARK   3    TRANSVERSE                (DEGREES) : 31.600; 20.000              
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  OTHER REFINEMENT REMARKS: IN SUBUNIT A RESIDUES A 1 - A 47 ARE      
REMARK   3  DISORDERED STRUCTURE AND WERE NOT MODELLED. IN SUBUNIT B            
REMARK   3  RESIDUES B 1 - B 48 ARE DISORDERED STRUCTURE AND WERE NOT           
REMARK   3  MODELLED.                                                           
REMARK   4                                                                      
REMARK   4 1H9Y COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 23-MAR-01.                  
REMARK 100 THE DEPOSITION ID IS D_1290005958.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 05-OCT-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 9.00                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : MAX II                             
REMARK 200  BEAMLINE                       : I711                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0232                             
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 : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 83427                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.9                               
REMARK 200  DATA REDUNDANCY                : 3.200                              
REMARK 200  R MERGE                    (I) : 0.08600                            
REMARK 200  R SYM                      (I) : 0.08600                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 16.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.49                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 93.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.28700                            
REMARK 200  R SYM FOR SHELL            (I) : 0.28700                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.100                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: PDB ENTRY 1H9X                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 71.16                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.30                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: HANGING DROP USING 2.1 M AMMONIUM        
REMARK 280  SULPHATE AND 100 MM CHES PH 7.0 1 MM ASCORMBATE AND 2.5 UM PMS      
REMARK 280  FROM REDUCTION OF PROTEIN WAS ALSO PRESENT IN CRYSTALLISATION.,     
REMARK 280  PH 9.00, VAPOR DIFFUSION, HANGING DROP                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y+1/2,X+1/2,Z+3/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+3/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+1/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-Z+1/2                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000      131.60050            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       63.78650            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       63.78650            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000      197.40075            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       63.78650            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       63.78650            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       65.80025            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       63.78650            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       63.78650            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000      197.40075            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       63.78650            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       63.78650            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       65.80025            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000      131.60050            
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: PQS                                                   
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     GLN A     1                                                      
REMARK 465     GLU A     2                                                      
REMARK 465     GLN A     3                                                      
REMARK 465     VAL A     4                                                      
REMARK 465     ALA A     5                                                      
REMARK 465     PRO A     6                                                      
REMARK 465     PRO A     7                                                      
REMARK 465     LYS A     8                                                      
REMARK 465     ASP A     9                                                      
REMARK 465     PRO A    10                                                      
REMARK 465     ALA A    11                                                      
REMARK 465     ALA A    12                                                      
REMARK 465     ALA A    13                                                      
REMARK 465     LEU A    14                                                      
REMARK 465     GLU A    15                                                      
REMARK 465     ASP A    16                                                      
REMARK 465     HIS A    17                                                      
REMARK 465     LYS A    18                                                      
REMARK 465     THR A    19                                                      
REMARK 465     ARG A    20                                                      
REMARK 465     THR A    21                                                      
REMARK 465     ASP A    22                                                      
REMARK 465     ASN A    23                                                      
REMARK 465     ARG A    24                                                      
REMARK 465     TYR A    25                                                      
REMARK 465     GLU A    26                                                      
REMARK 465     PRO A    27                                                      
REMARK 465     SER A    28                                                      
REMARK 465     LEU A    29                                                      
REMARK 465     ASP A    30                                                      
REMARK 465     ASN A    31                                                      
REMARK 465     LEU A    32                                                      
REMARK 465     ALA A    33                                                      
REMARK 465     GLN A    34                                                      
REMARK 465     GLN A    35                                                      
REMARK 465     ASP A    36                                                      
REMARK 465     VAL A    37                                                      
REMARK 465     ALA A    38                                                      
REMARK 465     ALA A    39                                                      
REMARK 465     PRO A    40                                                      
REMARK 465     GLY A    41                                                      
REMARK 465     ALA A    42                                                      
REMARK 465     PRO A    43                                                      
REMARK 465     GLU A    44                                                      
REMARK 465     GLY A    45                                                      
REMARK 465     VAL A    46                                                      
REMARK 465     SER A    47                                                      
REMARK 465     GLN B     1                                                      
REMARK 465     GLU B     2                                                      
REMARK 465     GLN B     3                                                      
REMARK 465     VAL B     4                                                      
REMARK 465     ALA B     5                                                      
REMARK 465     PRO B     6                                                      
REMARK 465     PRO B     7                                                      
REMARK 465     LYS B     8                                                      
REMARK 465     ASP B     9                                                      
REMARK 465     PRO B    10                                                      
REMARK 465     ALA B    11                                                      
REMARK 465     ALA B    12                                                      
REMARK 465     ALA B    13                                                      
REMARK 465     LEU B    14                                                      
REMARK 465     GLU B    15                                                      
REMARK 465     ASP B    16                                                      
REMARK 465     HIS B    17                                                      
REMARK 465     LYS B    18                                                      
REMARK 465     THR B    19                                                      
REMARK 465     ARG B    20                                                      
REMARK 465     THR B    21                                                      
REMARK 465     ASP B    22                                                      
REMARK 465     ASN B    23                                                      
REMARK 465     ARG B    24                                                      
REMARK 465     TYR B    25                                                      
REMARK 465     GLU B    26                                                      
REMARK 465     PRO B    27                                                      
REMARK 465     SER B    28                                                      
REMARK 465     LEU B    29                                                      
REMARK 465     ASP B    30                                                      
REMARK 465     ASN B    31                                                      
REMARK 465     LEU B    32                                                      
REMARK 465     ALA B    33                                                      
REMARK 465     GLN B    34                                                      
REMARK 465     GLN B    35                                                      
REMARK 465     ASP B    36                                                      
REMARK 465     VAL B    37                                                      
REMARK 465     ALA B    38                                                      
REMARK 465     ALA B    39                                                      
REMARK 465     PRO B    40                                                      
REMARK 465     GLY B    41                                                      
REMARK 465     ALA B    42                                                      
REMARK 465     PRO B    43                                                      
REMARK 465     GLU B    44                                                      
REMARK 465     GLY B    45                                                      
REMARK 465     VAL B    46                                                      
REMARK 465     SER B    47                                                      
REMARK 465     ALA B    48                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG A  64   CD  -  NE  -  CZ  ANGL. DEV. =   9.3 DEGREES          
REMARK 500    ARG A  87   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500    ASP A 255   CB  -  CG  -  OD2 ANGL. DEV. =   6.1 DEGREES          
REMARK 500    ARG A 309   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500    ARG A 363   NE  -  CZ  -  NH1 ANGL. DEV. =   3.8 DEGREES          
REMARK 500    ARG A 363   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.1 DEGREES          
REMARK 500    ARG B 174   CD  -  NE  -  CZ  ANGL. DEV. =  17.4 DEGREES          
REMARK 500    ARG B 174   NE  -  CZ  -  NH1 ANGL. DEV. =   4.6 DEGREES          
REMARK 500    ARG B 174   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.8 DEGREES          
REMARK 500    VAL B 199   CB  -  CA  -  C   ANGL. DEV. = -14.0 DEGREES          
REMARK 500    ARG B 363   NE  -  CZ  -  NH1 ANGL. DEV. =   3.9 DEGREES          
REMARK 500    GLY B 390   N   -  CA  -  C   ANGL. DEV. = -15.5 DEGREES          
REMARK 500    ASP B 484   CA  -  CB  -  CG  ANGL. DEV. =  14.1 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    ALA A  76     -100.51   -144.30                                   
REMARK 500    ASP A 164       78.80   -106.76                                   
REMARK 500    GLU A 297       55.59   -143.38                                   
REMARK 500    ALA A 301     -129.30    -96.79                                   
REMARK 500    ASN A 332       67.02   -109.92                                   
REMARK 500    ALA A 340     -106.68   -125.26                                   
REMARK 500    HIS A 345      -93.77   -139.45                                   
REMARK 500    THR A 386       74.79     62.83                                   
REMARK 500    ALA A 437     -143.18   -113.96                                   
REMARK 500    ALA A 458       41.18   -157.56                                   
REMARK 500    THR A 499      -36.34   -133.27                                   
REMARK 500    GLN A 507      111.77     49.53                                   
REMARK 500    ASP A 547      148.06   -173.87                                   
REMARK 500    THR A 552       65.53     32.09                                   
REMARK 500    THR A 554     -102.38   -122.79                                   
REMARK 500    ALA B  76      -99.61   -142.76                                   
REMARK 500    LEU B 173       78.04   -100.34                                   
REMARK 500    ARG B 174      -72.28    -31.54                                   
REMARK 500    THR B 195      -50.90   -120.21                                   
REMARK 500    ARG B 243      -23.01   -143.35                                   
REMARK 500    GLU B 297       64.17   -150.64                                   
REMARK 500    ALA B 301     -130.55    -95.93                                   
REMARK 500    ASN B 332       69.28   -104.42                                   
REMARK 500    ALA B 340     -103.33   -129.87                                   
REMARK 500    PHE B 343       20.15     81.43                                   
REMARK 500    HIS B 345      -98.38   -131.54                                   
REMARK 500    THR B 386       74.31     56.61                                   
REMARK 500    ALA B 437     -135.36   -116.54                                   
REMARK 500    ALA B 458       36.84   -153.69                                   
REMARK 500    GLN B 507      108.53     51.10                                   
REMARK 500    THR B 552       63.74     37.31                                   
REMARK 500    THR B 554      -93.68   -125.98                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     SO4 B  621                                                       
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                             HEC A 601  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  69   NE2                                                    
REMARK 620 2 HEC A 601   NA   87.2                                              
REMARK 620 3 HEC A 601   NB   90.1  89.7                                        
REMARK 620 4 HEC A 601   NC   91.6 178.2  89.0                                  
REMARK 620 5 HEC A 601   ND   87.5  90.9 177.5  90.3                            
REMARK 620 6 MET A 106   SD  178.5  91.9  88.7  89.2  93.7                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             DHE A 602  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 200   NE2                                                    
REMARK 620 2 DHE A 602   NA   83.8                                              
REMARK 620 3 DHE A 602   NB   98.2  89.6                                        
REMARK 620 4 DHE A 602   NC   97.1 179.1  90.1                                  
REMARK 620 5 DHE A 602   ND   82.4  90.6 179.4  89.7                            
REMARK 620 6 CYN A 603   N   163.2  81.7  90.1  97.4  89.3                      
REMARK 620 7 CYN A 603   C   175.4  92.2  83.8  87.0  95.6  12.2                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEC B 601  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B  69   NE2                                                    
REMARK 620 2 HEC B 601   NA   89.3                                              
REMARK 620 3 HEC B 601   NB   89.0  90.3                                        
REMARK 620 4 HEC B 601   NC   91.3 179.1  89.0                                  
REMARK 620 5 HEC B 601   ND   90.5  91.0 178.6  89.7                            
REMARK 620 6 MET B 106   SD  172.4  94.4  84.3  85.0  96.1                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             DHE B 602  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B 200   NE2                                                    
REMARK 620 2 DHE B 602   NA   92.1                                              
REMARK 620 3 DHE B 602   NB  100.5  90.5                                        
REMARK 620 4 DHE B 602   NC   94.1 173.5  90.2                                  
REMARK 620 5 DHE B 602   ND   86.0  90.5 173.4  88.1                            
REMARK 620 6 CYN B 603   C   172.2  86.2  87.2  87.3  86.4                      
REMARK 620 7 CYN B 603   N   167.6  75.9  76.9  98.0  97.1  14.8                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 621                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 621                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 622                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYN A 603                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYN B 603                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC A 601                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DHE A 602                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC B 601                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DHE B 602                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1H9X   RELATED DB: PDB                                   
REMARK 900 CYTOCHROME CD1 NITRITE REDUCTASE, REDUCED FORM                       
REMARK 900 RELATED ID: 1HCM   RELATED DB: PDB                                   
REMARK 900 CYTOCHROME CD1 NITRITE REDUCTASE, OXIDISED FROM FROM TETRAGONAL      
REMARK 900 CRYSTALS                                                             
REMARK 900 RELATED ID: 1HJ3   RELATED DB: PDB                                   
REMARK 900 CYTOCHROME CD1 NITRITE REDUCTASE, DIOXYGEN COMPLEX                   
REMARK 900 RELATED ID: 1HJ4   RELATED DB: PDB                                   
REMARK 900 CYTOCHROME CD1 NITRITE REDUCTASE, X-RAY REDUCED DIOXYGEN COMPLEX     
REMARK 900 RELATED ID: 1HJ5   RELATED DB: PDB                                   
REMARK 900 CYTOCHROME CD1 NITRITE REDUCTASE, REOXIDISED ENZYME                  
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 RESIDUES 1-47 OF CHAIN A ARE DISORDERED AND                          
REMARK 999 COULD NOT BE MODELLED                                                
REMARK 999 RESIDUES 1-48 OF CHAIN B ARE DISORDERED.                             
DBREF  1H9Y A    1   567  UNP    Q9FCQ0   Q9FCQ0          30    596             
DBREF  1H9Y B    1   567  UNP    Q9FCQ0   Q9FCQ0          30    596             
SEQRES   1 A  567  GLN GLU GLN VAL ALA PRO PRO LYS ASP PRO ALA ALA ALA          
SEQRES   2 A  567  LEU GLU ASP HIS LYS THR ARG THR ASP ASN ARG TYR GLU          
SEQRES   3 A  567  PRO SER LEU ASP ASN LEU ALA GLN GLN ASP VAL ALA ALA          
SEQRES   4 A  567  PRO GLY ALA PRO GLU GLY VAL SER ALA LEU SER ASP ALA          
SEQRES   5 A  567  GLN TYR ASN GLU ALA ASN LYS ILE TYR PHE GLU ARG CYS          
SEQRES   6 A  567  ALA GLY CYS HIS GLY VAL LEU ARG LYS GLY ALA THR GLY          
SEQRES   7 A  567  LYS ALA LEU THR PRO ASP LEU THR ARG ASP LEU GLY PHE          
SEQRES   8 A  567  ASP TYR LEU GLN SER PHE ILE THR TYR GLY SER PRO ALA          
SEQRES   9 A  567  GLY MET PRO ASN TRP GLY THR SER GLY GLU LEU SER ALA          
SEQRES  10 A  567  GLU GLN VAL ASP LEU MET ALA ASN TYR LEU LEU LEU ASP          
SEQRES  11 A  567  PRO ALA ALA PRO PRO GLU PHE GLY MET LYS GLU MET ARG          
SEQRES  12 A  567  GLU SER TRP LYS VAL HIS VAL ALA PRO GLU ASP ARG PRO          
SEQRES  13 A  567  THR GLN GLN GLU ASN ASP TRP ASP LEU GLU ASN LEU PHE          
SEQRES  14 A  567  SER VAL THR LEU ARG ASP ALA GLY GLN ILE ALA LEU ILE          
SEQRES  15 A  567  ASP GLY ALA THR TYR GLU ILE LYS SER VAL LEU ASP THR          
SEQRES  16 A  567  GLY TYR ALA VAL HIS ILE SER ARG LEU SER ALA SER GLY          
SEQRES  17 A  567  ARG TYR LEU PHE VAL ILE GLY ARG ASP GLY LYS VAL ASN          
SEQRES  18 A  567  MET ILE ASP LEU TRP MET LYS GLU PRO THR THR VAL ALA          
SEQRES  19 A  567  GLU ILE LYS ILE GLY SER GLU ALA ARG SER ILE GLU THR          
SEQRES  20 A  567  SER LYS MET GLU GLY TRP GLU ASP LYS TYR ALA ILE ALA          
SEQRES  21 A  567  GLY ALA TYR TRP PRO PRO GLN TYR VAL ILE MET ASP GLY          
SEQRES  22 A  567  GLU THR LEU GLU PRO LYS LYS ILE GLN SER THR ARG GLY          
SEQRES  23 A  567  MET THR TYR ASP GLU GLN GLU TYR HIS PRO GLU PRO ARG          
SEQRES  24 A  567  VAL ALA ALA ILE LEU ALA SER HIS TYR ARG PRO GLU PHE          
SEQRES  25 A  567  ILE VAL ASN VAL LYS GLU THR GLY LYS ILE LEU LEU VAL          
SEQRES  26 A  567  ASP TYR THR ASP LEU ASP ASN LEU LYS THR THR GLU ILE          
SEQRES  27 A  567  SER ALA GLU ARG PHE LEU HIS ASP GLY GLY LEU ASP GLY          
SEQRES  28 A  567  SER HIS ARG TYR PHE ILE THR ALA ALA ASN ALA ARG ASN          
SEQRES  29 A  567  LYS LEU VAL VAL ILE ASP THR LYS GLU GLY LYS LEU VAL          
SEQRES  30 A  567  ALA ILE GLU ASP THR GLY GLY GLN THR PRO HIS PRO GLY          
SEQRES  31 A  567  ARG GLY ALA ASN PHE VAL HIS PRO THR PHE GLY PRO VAL          
SEQRES  32 A  567  TRP ALA THR SER HIS MET GLY ASP ASP SER VAL ALA LEU          
SEQRES  33 A  567  ILE GLY THR ASP PRO GLU GLY HIS PRO ASP ASN ALA TRP          
SEQRES  34 A  567  LYS ILE LEU ASP SER PHE PRO ALA LEU GLY GLY GLY SER          
SEQRES  35 A  567  LEU PHE ILE LYS THR HIS PRO ASN SER GLN TYR LEU TYR          
SEQRES  36 A  567  VAL ASP ALA THR LEU ASN PRO GLU ALA GLU ILE SER GLY          
SEQRES  37 A  567  SER VAL ALA VAL PHE ASP ILE LYS ALA MET THR GLY ASP          
SEQRES  38 A  567  GLY SER ASP PRO GLU PHE LYS THR LEU PRO ILE ALA GLU          
SEQRES  39 A  567  TRP ALA GLY ILE THR GLU GLY GLN PRO ARG VAL VAL GLN          
SEQRES  40 A  567  GLY GLU PHE ASN LYS ASP GLY THR GLU VAL TRP PHE SER          
SEQRES  41 A  567  VAL TRP ASN GLY LYS ASP GLN GLU SER ALA LEU VAL VAL          
SEQRES  42 A  567  VAL ASP ASP LYS THR LEU GLU LEU LYS HIS VAL ILE LYS          
SEQRES  43 A  567  ASP GLU ARG LEU VAL THR PRO THR GLY LYS PHE ASN VAL          
SEQRES  44 A  567  TYR ASN THR MET THR ASP THR TYR                              
SEQRES   1 B  567  GLN GLU GLN VAL ALA PRO PRO LYS ASP PRO ALA ALA ALA          
SEQRES   2 B  567  LEU GLU ASP HIS LYS THR ARG THR ASP ASN ARG TYR GLU          
SEQRES   3 B  567  PRO SER LEU ASP ASN LEU ALA GLN GLN ASP VAL ALA ALA          
SEQRES   4 B  567  PRO GLY ALA PRO GLU GLY VAL SER ALA LEU SER ASP ALA          
SEQRES   5 B  567  GLN TYR ASN GLU ALA ASN LYS ILE TYR PHE GLU ARG CYS          
SEQRES   6 B  567  ALA GLY CYS HIS GLY VAL LEU ARG LYS GLY ALA THR GLY          
SEQRES   7 B  567  LYS ALA LEU THR PRO ASP LEU THR ARG ASP LEU GLY PHE          
SEQRES   8 B  567  ASP TYR LEU GLN SER PHE ILE THR TYR GLY SER PRO ALA          
SEQRES   9 B  567  GLY MET PRO ASN TRP GLY THR SER GLY GLU LEU SER ALA          
SEQRES  10 B  567  GLU GLN VAL ASP LEU MET ALA ASN TYR LEU LEU LEU ASP          
SEQRES  11 B  567  PRO ALA ALA PRO PRO GLU PHE GLY MET LYS GLU MET ARG          
SEQRES  12 B  567  GLU SER TRP LYS VAL HIS VAL ALA PRO GLU ASP ARG PRO          
SEQRES  13 B  567  THR GLN GLN GLU ASN ASP TRP ASP LEU GLU ASN LEU PHE          
SEQRES  14 B  567  SER VAL THR LEU ARG ASP ALA GLY GLN ILE ALA LEU ILE          
SEQRES  15 B  567  ASP GLY ALA THR TYR GLU ILE LYS SER VAL LEU ASP THR          
SEQRES  16 B  567  GLY TYR ALA VAL HIS ILE SER ARG LEU SER ALA SER GLY          
SEQRES  17 B  567  ARG TYR LEU PHE VAL ILE GLY ARG ASP GLY LYS VAL ASN          
SEQRES  18 B  567  MET ILE ASP LEU TRP MET LYS GLU PRO THR THR VAL ALA          
SEQRES  19 B  567  GLU ILE LYS ILE GLY SER GLU ALA ARG SER ILE GLU THR          
SEQRES  20 B  567  SER LYS MET GLU GLY TRP GLU ASP LYS TYR ALA ILE ALA          
SEQRES  21 B  567  GLY ALA TYR TRP PRO PRO GLN TYR VAL ILE MET ASP GLY          
SEQRES  22 B  567  GLU THR LEU GLU PRO LYS LYS ILE GLN SER THR ARG GLY          
SEQRES  23 B  567  MET THR TYR ASP GLU GLN GLU TYR HIS PRO GLU PRO ARG          
SEQRES  24 B  567  VAL ALA ALA ILE LEU ALA SER HIS TYR ARG PRO GLU PHE          
SEQRES  25 B  567  ILE VAL ASN VAL LYS GLU THR GLY LYS ILE LEU LEU VAL          
SEQRES  26 B  567  ASP TYR THR ASP LEU ASP ASN LEU LYS THR THR GLU ILE          
SEQRES  27 B  567  SER ALA GLU ARG PHE LEU HIS ASP GLY GLY LEU ASP GLY          
SEQRES  28 B  567  SER HIS ARG TYR PHE ILE THR ALA ALA ASN ALA ARG ASN          
SEQRES  29 B  567  LYS LEU VAL VAL ILE ASP THR LYS GLU GLY LYS LEU VAL          
SEQRES  30 B  567  ALA ILE GLU ASP THR GLY GLY GLN THR PRO HIS PRO GLY          
SEQRES  31 B  567  ARG GLY ALA ASN PHE VAL HIS PRO THR PHE GLY PRO VAL          
SEQRES  32 B  567  TRP ALA THR SER HIS MET GLY ASP ASP SER VAL ALA LEU          
SEQRES  33 B  567  ILE GLY THR ASP PRO GLU GLY HIS PRO ASP ASN ALA TRP          
SEQRES  34 B  567  LYS ILE LEU ASP SER PHE PRO ALA LEU GLY GLY GLY SER          
SEQRES  35 B  567  LEU PHE ILE LYS THR HIS PRO ASN SER GLN TYR LEU TYR          
SEQRES  36 B  567  VAL ASP ALA THR LEU ASN PRO GLU ALA GLU ILE SER GLY          
SEQRES  37 B  567  SER VAL ALA VAL PHE ASP ILE LYS ALA MET THR GLY ASP          
SEQRES  38 B  567  GLY SER ASP PRO GLU PHE LYS THR LEU PRO ILE ALA GLU          
SEQRES  39 B  567  TRP ALA GLY ILE THR GLU GLY GLN PRO ARG VAL VAL GLN          
SEQRES  40 B  567  GLY GLU PHE ASN LYS ASP GLY THR GLU VAL TRP PHE SER          
SEQRES  41 B  567  VAL TRP ASN GLY LYS ASP GLN GLU SER ALA LEU VAL VAL          
SEQRES  42 B  567  VAL ASP ASP LYS THR LEU GLU LEU LYS HIS VAL ILE LYS          
SEQRES  43 B  567  ASP GLU ARG LEU VAL THR PRO THR GLY LYS PHE ASN VAL          
SEQRES  44 B  567  TYR ASN THR MET THR ASP THR TYR                              
HET    HEC  A 601      43                                                       
HET    DHE  A 602      49                                                       
HET    CYN  A 603       2                                                       
HET    SO4  A 621       5                                                       
HET    HEC  B 601      43                                                       
HET    DHE  B 602      49                                                       
HET    CYN  B 603       2                                                       
HET    SO4  B 621       4                                                       
HET    SO4  B 622       5                                                       
HETNAM     HEC HEME C                                                           
HETNAM     DHE HEME D                                                           
HETNAM     CYN CYANIDE ION                                                      
HETNAM     SO4 SULFATE ION                                                      
FORMUL   3  HEC    2(C34 H34 FE N4 O4)                                          
FORMUL   4  DHE    2(C34 H32 FE N4 O10)                                         
FORMUL   5  CYN    2(C N 1-)                                                    
FORMUL   6  SO4    3(O4 S 2-)                                                   
FORMUL  12  HOH   *242(H2 O)                                                    
HELIX    1   1 SER A   50  CYS A   65  1                                  16    
HELIX    2   2 CYS A   65  GLY A   70  1                                   6    
HELIX    3   3 THR A   82  GLY A   90  1                                   9    
HELIX    4   4 GLY A   90  GLY A  101  1                                  12    
HELIX    5   5 SER A  116  LEU A  127  1                                  12    
HELIX    6   6 GLY A  138  TRP A  146  1                                   9    
HELIX    7   7 ALA A  151  ARG A  155  5                                   5    
HELIX    8   8 ASP A  164  ASN A  167  5                                   4    
HELIX    9   9 GLU A  463  GLY A  468  1                                   6    
HELIX   10  10 LYS A  476  MET A  478  5                                   3    
HELIX   11  11 PRO A  491  GLY A  497  1                                   7    
HELIX   12  12 VAL A  559  THR A  564  1                                   6    
HELIX   13  13 SER B   50  CYS B   65  1                                  16    
HELIX   14  14 CYS B   65  GLY B   70  1                                   6    
HELIX   15  15 THR B   82  GLY B   90  1                                   9    
HELIX   16  16 LEU B   89  GLY B  101  1                                  13    
HELIX   17  17 ASN B  108  GLY B  113  1                                   6    
HELIX   18  18 SER B  116  LEU B  129  1                                  14    
HELIX   19  19 GLY B  138  TRP B  146  1                                   9    
HELIX   20  20 ALA B  151  ARG B  155  5                                   5    
HELIX   21  21 ASP B  164  GLU B  166  5                                   3    
HELIX   22  22 GLU B  463  GLY B  468  1                                   6    
HELIX   23  23 LYS B  476  MET B  478  5                                   3    
HELIX   24  24 PRO B  491  GLY B  497  1                                   7    
HELIX   25  25 VAL B  559  THR B  564  1                                   6    
SHEET    1  AA 5 LYS A 147  VAL A 148  0                                        
SHEET    2  AA 5 THR A 232  LYS A 237 -1  O  GLU A 235   N  LYS A 147           
SHEET    3  AA 5 LYS A 219  ASP A 224 -1  O  VAL A 220   N  ILE A 236           
SHEET    4  AA 5 TYR A 210  GLY A 215 -1  O  LEU A 211   N  ILE A 223           
SHEET    5  AA 5 VAL A 199  LEU A 204 -1  N  HIS A 200   O  ILE A 214           
SHEET    1  AB 4 ILE A 189  ASP A 194  0                                        
SHEET    2  AB 4 GLN A 178  ILE A 182 -1  O  ILE A 179   N  LEU A 193           
SHEET    3  AB 4 PHE A 169  LEU A 173 -1  O  PHE A 169   N  ILE A 182           
SHEET    4  AB 4 PRO A 553  ASN A 558 -1  N  THR A 554   O  THR A 172           
SHEET    1  AC 4 GLU A 241  THR A 247  0                                        
SHEET    2  AC 4 TYR A 257  TRP A 264 -1  O  ILE A 259   N  GLU A 246           
SHEET    3  AC 4 GLN A 267  ASP A 272 -1  O  GLN A 267   N  ALA A 262           
SHEET    4  AC 4 PRO A 278  SER A 283 -1  N  LYS A 279   O  ILE A 270           
SHEET    1  AD 2 GLY A 286  MET A 287  0                                        
SHEET    2  AD 2 TYR A 294  HIS A 295 -1  O  HIS A 295   N  GLY A 286           
SHEET    1  AE 8 VAL A 300  ALA A 305  0                                        
SHEET    2  AE 8 GLU A 311  VAL A 316 -1  O  ILE A 313   N  LEU A 304           
SHEET    3  AE 8 LYS A 321  ASP A 326 -1  O  LYS A 321   N  VAL A 316           
SHEET    4  AE 8 ASN A 332  SER A 339 -1  O  LYS A 334   N  ASP A 326           
SHEET    5  AE 8 ASN B 332  SER B 339 -1  O  LEU B 333   N  GLU A 337           
SHEET    6  AE 8 LYS B 321  ASP B 326 -1  O  ILE B 322   N  ILE B 338           
SHEET    7  AE 8 GLU B 311  VAL B 316 -1  O  PHE B 312   N  VAL B 325           
SHEET    8  AE 8 VAL B 300  ALA B 305 -1  N  ALA B 301   O  ASN B 315           
SHEET    1  AF 4 LEU A 344  LEU A 349  0                                        
SHEET    2  AF 4 TYR A 355  ALA A 360 -1  O  ILE A 357   N  GLY A 348           
SHEET    3  AF 4 LYS A 365  ASP A 370 -1  O  LYS A 365   N  ALA A 360           
SHEET    4  AF 4 LYS A 375  ASP A 381 -1  O  LYS A 375   N  ASP A 370           
SHEET    1  AG 4 ALA A 393  HIS A 397  0                                        
SHEET    2  AG 4 GLY A 401  THR A 406 -1  O  GLY A 401   N  HIS A 397           
SHEET    3  AG 4 SER A 413  GLY A 418 -1  O  ALA A 415   N  THR A 406           
SHEET    4  AG 4 ILE A 431  PRO A 436 -1  N  LEU A 432   O  LEU A 416           
SHEET    1  AH 4 ILE A 445  LYS A 446  0                                        
SHEET    2  AH 4 TYR A 453  VAL A 456 -1  O  TYR A 455   N  LYS A 446           
SHEET    3  AH 4 VAL A 470  ASP A 474 -1  O  ALA A 471   N  VAL A 456           
SHEET    4  AH 4 PHE A 487  LEU A 490 -1  O  LYS A 488   N  VAL A 472           
SHEET    1  AI 4 ARG A 504  PHE A 510  0                                        
SHEET    2  AI 4 GLU A 516  TRP A 522 -1  O  TRP A 518   N  GLU A 509           
SHEET    3  AI 4 ALA A 530  ASP A 535 -1  O  ALA A 530   N  VAL A 521           
SHEET    4  AI 4 GLU A 540  ILE A 545 -1  O  GLU A 540   N  ASP A 535           
SHEET    1  BA 5 LYS B 147  VAL B 148  0                                        
SHEET    2  BA 5 THR B 232  LYS B 237 -1  O  GLU B 235   N  LYS B 147           
SHEET    3  BA 5 LYS B 219  ASP B 224 -1  O  VAL B 220   N  ILE B 236           
SHEET    4  BA 5 TYR B 210  GLY B 215 -1  O  LEU B 211   N  ILE B 223           
SHEET    5  BA 5 VAL B 199  LEU B 204 -1  N  HIS B 200   O  ILE B 214           
SHEET    1  BB 4 ILE B 189  ASP B 194  0                                        
SHEET    2  BB 4 GLN B 178  ASP B 183 -1  O  ILE B 179   N  LEU B 193           
SHEET    3  BB 4 LEU B 168  LEU B 173 -1  O  PHE B 169   N  ILE B 182           
SHEET    4  BB 4 PRO B 553  ASN B 558 -1  N  THR B 554   O  THR B 172           
SHEET    1  BC 4 GLU B 241  THR B 247  0                                        
SHEET    2  BC 4 TYR B 257  TRP B 264 -1  O  ILE B 259   N  GLU B 246           
SHEET    3  BC 4 GLN B 267  ASP B 272 -1  O  GLN B 267   N  ALA B 262           
SHEET    4  BC 4 PRO B 278  SER B 283 -1  N  LYS B 279   O  ILE B 270           
SHEET    1  BD 2 GLY B 286  MET B 287  0                                        
SHEET    2  BD 2 TYR B 294  HIS B 295 -1  O  HIS B 295   N  GLY B 286           
SHEET    1  BE 4 LEU B 344  LEU B 349  0                                        
SHEET    2  BE 4 TYR B 355  ALA B 360 -1  O  ILE B 357   N  GLY B 348           
SHEET    3  BE 4 LYS B 365  ASP B 370 -1  O  LYS B 365   N  ALA B 360           
SHEET    4  BE 4 LYS B 375  ASP B 381 -1  O  LYS B 375   N  ASP B 370           
SHEET    1  BF 4 ALA B 393  HIS B 397  0                                        
SHEET    2  BF 4 GLY B 401  THR B 406 -1  O  GLY B 401   N  HIS B 397           
SHEET    3  BF 4 SER B 413  GLY B 418 -1  O  ALA B 415   N  THR B 406           
SHEET    4  BF 4 ILE B 431  PRO B 436 -1  N  LEU B 432   O  LEU B 416           
SHEET    1  BG 4 ILE B 445  LYS B 446  0                                        
SHEET    2  BG 4 TYR B 453  VAL B 456 -1  O  TYR B 455   N  LYS B 446           
SHEET    3  BG 4 VAL B 470  ASP B 474 -1  O  ALA B 471   N  VAL B 456           
SHEET    4  BG 4 LYS B 488  LEU B 490 -1  O  LYS B 488   N  VAL B 472           
SHEET    1  BH 4 ARG B 504  PHE B 510  0                                        
SHEET    2  BH 4 GLU B 516  TRP B 522 -1  O  TRP B 518   N  GLU B 509           
SHEET    3  BH 4 ALA B 530  ASP B 535 -1  O  ALA B 530   N  VAL B 521           
SHEET    4  BH 4 GLU B 540  ILE B 545 -1  O  GLU B 540   N  ASP B 535           
LINK         SG  CYS A  65                 CAB HEC A 601     1555   1555  1.88  
LINK         SG  CYS A  68                 CAC HEC A 601     1555   1555  1.92  
LINK         SG  CYS B  65                 CAB HEC B 601     1555   1555  1.87  
LINK         SG  CYS B  68                 CAC HEC B 601     1555   1555  1.90  
LINK         NE2 HIS A  69                FE   HEC A 601     1555   1555  2.02  
LINK         SD  MET A 106                FE   HEC A 601     1555   1555  2.12  
LINK         NE2 HIS A 200                FE   DHE A 602     1555   1555  2.05  
LINK        FE   DHE A 602                 N   CYN A 603     1555   1555  3.06  
LINK        FE   DHE A 602                 C   CYN A 603     1555   1555  2.04  
LINK         NE2 HIS B  69                FE   HEC B 601     1555   1555  1.98  
LINK         SD  MET B 106                FE   HEC B 601     1555   1555  2.06  
LINK         NE2 HIS B 200                FE   DHE B 602     1555   1555  2.04  
LINK        FE   DHE B 602                 C   CYN B 603     1555   1555  2.04  
LINK        FE   DHE B 602                 N   CYN B 603     1555   1555  2.99  
CISPEP   1 TRP A  264    PRO A  265          0        -3.20                     
CISPEP   2 TRP B  264    PRO B  265          0        -3.69                     
SITE     1 AC1  5 GLY A  70  VAL A  71  LEU A  72  ARG A  73                    
SITE     2 AC1  5 LYS A  74                                                     
SITE     1 AC2  5 ARG A 354  LYS A 372  GLU A 373  LYS B  79                    
SITE     2 AC2  5 HOH B2124                                                     
SITE     1 AC3  2 HIS A 307  HIS A 353                                          
SITE     1 AC4  3 HIS A 345  HIS A 388  DHE A 602                               
SITE     1 AC5  3 HIS B 345  HIS B 388  DHE B 602                               
SITE     1 AC6 17 ARG A  64  CYS A  65  CYS A  68  HIS A  69                    
SITE     2 AC6 17 THR A  77  GLY A  78  LYS A  79  TYR A  93                    
SITE     3 AC6 17 LEU A  94  PHE A  97  SER A 102  ALA A 104                    
SITE     4 AC6 17 GLY A 105  MET A 106  PRO A 107  TRP A 109                    
SITE     5 AC6 17 LEU A 127                                                     
SITE     1 AC7 25 ARG A 174  HIS A 200  ILE A 201  ARG A 203                    
SITE     2 AC7 25 ARG A 216  ARG A 243  SER A 244  ILE A 245                    
SITE     3 AC7 25 TYR A 263  ALA A 301  ALA A 302  ILE A 303                    
SITE     4 AC7 25 HIS A 345  ARG A 391  PHE A 444  GLN A 507                    
SITE     5 AC7 25 THR A 554  GLY A 555  PHE A 557  CYN A 603                    
SITE     6 AC7 25 HOH A2036  HOH A2115  HOH A2116  HOH A2117                    
SITE     7 AC7 25 HOH A2118                                                     
SITE     1 AC8 21 LYS A 372  ARG B  64  CYS B  65  CYS B  68                    
SITE     2 AC8 21 HIS B  69  THR B  77  GLY B  78  LYS B  79                    
SITE     3 AC8 21 LEU B  81  LEU B  89  TYR B  93  PHE B  97                    
SITE     4 AC8 21 ILE B  98  SER B 102  ALA B 104  GLY B 105                    
SITE     5 AC8 21 MET B 106  PRO B 107  TRP B 109  HOH B2006                    
SITE     6 AC8 21 HOH B2120                                                     
SITE     1 AC9 25 ARG B 174  HIS B 200  ILE B 201  ARG B 203                    
SITE     2 AC9 25 ARG B 216  ARG B 243  SER B 244  ILE B 245                    
SITE     3 AC9 25 TYR B 263  ALA B 301  ALA B 302  ILE B 303                    
SITE     4 AC9 25 HIS B 345  ARG B 391  PHE B 444  GLN B 507                    
SITE     5 AC9 25 THR B 554  GLY B 555  PHE B 557  CYN B 603                    
SITE     6 AC9 25 HOH B2031  HOH B2039  HOH B2121  HOH B2122                    
SITE     7 AC9 25 HOH B2123                                                     
CRYST1  127.573  127.573  263.201  90.00  90.00  90.00 P 43 21 2    16          
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      0.007839  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007839  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.003799        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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