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Database: PDB
Entry: 4KLR
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Original site: 4KLR 
HEADER    LYASE                                   07-MAY-13   4KLR              
TITLE     E343Q VARIANT OF HUMAN FERROCHELATASE                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: FERROCHELATASE, MITOCHONDRIAL;                             
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: HEME SYNTHASE, PROTOHEME FERRO-LYASE;                       
COMPND   5 EC: 4.99.1.1;                                                        
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: FECH;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    CHELATASE, MITOCHONDRIA, LYASE                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    W.N.LANZILOTTA,A.E.MEDLOCK                                            
REVDAT   2   28-FEB-24 4KLR    1       REMARK SEQADV LINK                       
REVDAT   1   18-JUN-14 4KLR    0                                                
JRNL        AUTH   W.N.LANZILOTTA,A.E.MEDLOCK                                   
JRNL        TITL   E343Q VARIANT OF HUMAN FERROCHELATASE                        
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.18 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0102                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.18                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 70.71                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 43881                          
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) : 0.203                           
REMARK   3   R VALUE            (WORKING SET) : 0.200                           
REMARK   3   FREE R VALUE                     : 0.258                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2339                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.18                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.24                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 3217                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.73                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2480                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 152                          
REMARK   3   BIN FREE R VALUE                    : 0.2890                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 5782                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 264                                     
REMARK   3   SOLVENT ATOMS            : 341                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 32.18                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.63000                                             
REMARK   3    B22 (A**2) : -1.68000                                             
REMARK   3    B33 (A**2) : 3.31000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.265         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.219         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.149         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.746         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.957                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.930                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  6308 ; 0.024 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  8591 ; 2.213 ; 2.051       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   736 ; 6.817 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   273 ;36.115 ;23.553       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1084 ;19.898 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    46 ;18.656 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   947 ; 0.156 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4672 ; 0.011 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  3643 ; 1.234 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  5934 ; 2.238 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2663 ; 3.502 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  2646 ; 5.364 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 4KLR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-MAY-13.                  
REMARK 100 THE DEPOSITION ID IS D_1000079497.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-SEP-10                          
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 22-BM                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0                                
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 225 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 49841                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 70.710                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.5                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
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: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 53.48                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.64                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: CRYSTALS WERE GROWN USING HANGING DROP   
REMARK 280  WITH A PRECIPITATING SOLUTION CONSISTING OF 0.1 BIS-TRIS PH 6.5,    
REMARK 280  0.075 M AMMONIUM SULFATE AND 30 % PENTAERYTHRITOL ETHOXYLATE (15/   
REMARK 280  4 EO/OH), VAPOR DIFFUSION, HANGING DROP                             
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       43.06350            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       54.63100            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       46.28050            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       54.63100            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       43.06350            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       46.28050            
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 11370 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 28260 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -89.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A    54                                                      
REMARK 465     GLY A    55                                                      
REMARK 465     GLY A    56                                                      
REMARK 465     SER A    57                                                      
REMARK 465     HIS A    58                                                      
REMARK 465     HIS A    59                                                      
REMARK 465     HIS A    60                                                      
REMARK 465     HIS A    61                                                      
REMARK 465     HIS A    62                                                      
REMARK 465     HIS A    63                                                      
REMARK 465     GLY A    64                                                      
REMARK 465     MET B    54                                                      
REMARK 465     GLY B    55                                                      
REMARK 465     GLY B    56                                                      
REMARK 465     SER B    57                                                      
REMARK 465     HIS B    58                                                      
REMARK 465     HIS B    59                                                      
REMARK 465     HIS B    60                                                      
REMARK 465     HIS B    61                                                      
REMARK 465     HIS B    62                                                      
REMARK 465     HIS B    63                                                      
REMARK 465     GLY B    64                                                      
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   CD   LYS A    68     CB   ALA A   155              1.55            
REMARK 500   SD   MET B   308     O12  CHD B   503              1.68            
REMARK 500   SD   MET B   308     O12  CHD B   503              1.69            
REMARK 500   CE   MET B   308     O12  CHD B   503              1.74            
REMARK 500   SD   MET B   308     C12  CHD B   503              1.85            
REMARK 500   SD   MET B   308     C12  CHD B   503              1.87            
REMARK 500   NH1  ARG A   125     O    HOH A   738              1.93            
REMARK 500   O    HOH A   660     O    HOH A   666              1.96            
REMARK 500   O    HOH A   711     O    HOH A   742              2.01            
REMARK 500   O    GLY A   181     O    HOH A   717              2.02            
REMARK 500   O    PRO B   375     N    PHE B   377              2.10            
REMARK 500   SD   MET B   308     C11  CHD B   503              2.12            
REMARK 500   OE2  GLU A   289     O    HOH A   731              2.14            
REMARK 500   CG2  THR A   170     O    HOH A   647              2.14            
REMARK 500   O    ASP A    95     O    ASP A    97              2.16            
REMARK 500   O    HOH B   608     O    HOH B   642              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   NH1  ARG B   125     O    HOH B   741     3655     2.02            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLU A 255   CB    GLU A 255   CG      0.118                       
REMARK 500    VAL A 269   CB    VAL A 269   CG2     0.142                       
REMARK 500    GLU A 317   CD    GLU A 317   OE1     0.070                       
REMARK 500    CYS B 360   CB    CYS B 360   SG     -0.104                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG A 125   NE  -  CZ  -  NH1 ANGL. DEV. =  -3.3 DEGREES          
REMARK 500    ARG A 226   NE  -  CZ  -  NH1 ANGL. DEV. =   5.8 DEGREES          
REMARK 500    ARG A 226   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.0 DEGREES          
REMARK 500    ARG A 327   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    PRO B 156   C   -  N   -  CA  ANGL. DEV. = -10.9 DEGREES          
REMARK 500    ARG B 226   NE  -  CZ  -  NH1 ANGL. DEV. =   5.6 DEGREES          
REMARK 500    ARG B 226   NE  -  CZ  -  NH2 ANGL. DEV. =  -7.1 DEGREES          
REMARK 500    PRO B 375   C   -  N   -  CA  ANGL. DEV. =  11.0 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    LYS A  66      117.80     92.85                                   
REMARK 500    LEU A  98      -66.87     78.04                                   
REMARK 500    ILE A 103       62.79     37.27                                   
REMARK 500    ASP A 148      -36.84    -38.64                                   
REMARK 500    ALA A 155     -136.80     84.63                                   
REMARK 500    THR A 198      -93.97   -119.47                                   
REMARK 500    TRP A 227       53.38   -156.62                                   
REMARK 500    LYS A 304      137.08    -38.31                                   
REMARK 500    ASN A 372      -93.80     50.62                                   
REMARK 500    ASN A 374      153.23    -21.45                                   
REMARK 500    LYS B  66      118.62     56.57                                   
REMARK 500    ALA B 155     -124.63     70.10                                   
REMARK 500    THR B 198      -91.97   -126.31                                   
REMARK 500    TRP B 227       55.04   -161.94                                   
REMARK 500    SER B 303     -118.38    -84.82                                   
REMARK 500    SER B 303     -116.26    -86.45                                   
REMARK 500    LYS B 304     -156.12    171.73                                   
REMARK 500    VAL B 305      -80.35    -67.42                                   
REMARK 500    ASN B 374     -166.30    -66.64                                   
REMARK 500    PRO B 375      -84.75   -108.20                                   
REMARK 500    LEU B 376       -2.63    -27.60                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 ARG A   65     LYS A   66                 -148.68                    
REMARK 500 THR A  154     ALA A  155                  142.06                    
REMARK 500 LEU A  371     ASN A  372                  149.29                    
REMARK 500 THR B  154     ALA B  155                  145.62                    
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                             FES A 508  FE2                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 196   SG                                                     
REMARK 620 2 FES A 508   S1  108.0                                              
REMARK 620 3 FES A 508   S2  107.7 100.5                                        
REMARK 620 4 CYS A 403   SG  100.2 122.3 117.6                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FES A 508  FE1                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 406   SG                                                     
REMARK 620 2 FES A 508   S1  109.5                                              
REMARK 620 3 FES A 508   S2  111.5 103.5                                        
REMARK 620 4 CYS A 411   SG  107.0 124.3 100.4                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM A 507  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 IMD A 501   N1                                                     
REMARK 620 2 HEM A 507   NA   83.6                                              
REMARK 620 3 HEM A 507   NB   84.0  87.5                                        
REMARK 620 4 HEM A 507   NC   94.9 178.5  92.4                                  
REMARK 620 5 HEM A 507   ND   94.5  90.9 177.9  89.2                            
REMARK 620 6 BCT A 502   O2  172.7  90.2  91.8  91.2  89.5                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FES B 507  FE2                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B 196   SG                                                     
REMARK 620 2 FES B 507   S1  112.7                                              
REMARK 620 3 FES B 507   S2  110.2 101.7                                        
REMARK 620 4 CYS B 403   SG   99.0 119.1 114.4                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FES B 507  FE1                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B 406   SG                                                     
REMARK 620 2 FES B 507   S1  109.4                                              
REMARK 620 3 FES B 507   S2  109.2 102.7                                        
REMARK 620 4 CYS B 411   SG  105.7 124.7 104.3                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM B 506  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 IMD B 501   N1                                                     
REMARK 620 2 HEM B 506   NA   81.7                                              
REMARK 620 3 HEM B 506   NB   83.7  88.6                                        
REMARK 620 4 HEM B 506   NC  100.4 177.8  91.1                                  
REMARK 620 5 HEM B 506   ND   98.8  91.1 177.5  89.2                            
REMARK 620 6 BCT B 502   O1  177.8  98.0  94.2  79.9  83.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IMD A 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BCT A 502                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 503                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CHD A 504                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CHD A 505                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 506                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 507                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FES A 508                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IMD B 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BCT B 502                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CHD B 503                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CHD B 504                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CHD B 505                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 506                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FES B 507                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4KLA   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4KLC   RELATED DB: PDB                                   
DBREF  4KLR A   65   423  UNP    P22830   HEMH_HUMAN      65    423             
DBREF  4KLR B   65   423  UNP    P22830   HEMH_HUMAN      65    423             
SEQADV 4KLR MET A   54  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR GLY A   55  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR GLY A   56  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR SER A   57  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS A   58  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS A   59  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS A   60  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS A   61  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS A   62  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS A   63  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR GLY A   64  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR GLN A  343  UNP  P22830    GLU   343 ENGINEERED MUTATION            
SEQADV 4KLR MET B   54  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR GLY B   55  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR GLY B   56  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR SER B   57  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS B   58  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS B   59  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS B   60  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS B   61  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS B   62  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR HIS B   63  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR GLY B   64  UNP  P22830              EXPRESSION TAG                 
SEQADV 4KLR GLN B  343  UNP  P22830    GLU   343 ENGINEERED MUTATION            
SEQRES   1 A  370  MET GLY GLY SER HIS HIS HIS HIS HIS HIS GLY ARG LYS          
SEQRES   2 A  370  PRO LYS THR GLY ILE LEU MET LEU ASN MET GLY GLY PRO          
SEQRES   3 A  370  GLU THR LEU GLY ASP VAL HIS ASP PHE LEU LEU ARG LEU          
SEQRES   4 A  370  PHE LEU ASP ARG ASP LEU MET THR LEU PRO ILE GLN ASN          
SEQRES   5 A  370  LYS LEU ALA PRO PHE ILE ALA LYS ARG ARG THR PRO LYS          
SEQRES   6 A  370  ILE GLN GLU GLN TYR ARG ARG ILE GLY GLY GLY SER PRO          
SEQRES   7 A  370  ILE LYS ILE TRP THR SER LYS GLN GLY GLU GLY MET VAL          
SEQRES   8 A  370  LYS LEU LEU ASP GLU LEU SER PRO ASN THR ALA PRO HIS          
SEQRES   9 A  370  LYS TYR TYR ILE GLY PHE ARG TYR VAL HIS PRO LEU THR          
SEQRES  10 A  370  GLU GLU ALA ILE GLU GLU MET GLU ARG ASP GLY LEU GLU          
SEQRES  11 A  370  ARG ALA ILE ALA PHE THR GLN TYR PRO GLN TYR SER CYS          
SEQRES  12 A  370  SER THR THR GLY SER SER LEU ASN ALA ILE TYR ARG TYR          
SEQRES  13 A  370  TYR ASN GLN VAL GLY ARG LYS PRO THR MET LYS TRP SER          
SEQRES  14 A  370  THR ILE ASP ARG TRP PRO THR HIS HIS LEU LEU ILE GLN          
SEQRES  15 A  370  CYS PHE ALA ASP HIS ILE LEU LYS GLU LEU ASP HIS PHE          
SEQRES  16 A  370  PRO LEU GLU LYS ARG SER GLU VAL VAL ILE LEU PHE SER          
SEQRES  17 A  370  ALA HIS SER LEU PRO MET SER VAL VAL ASN ARG GLY ASP          
SEQRES  18 A  370  PRO TYR PRO GLN GLU VAL SER ALA THR VAL GLN LYS VAL          
SEQRES  19 A  370  MET GLU ARG LEU GLU TYR CYS ASN PRO TYR ARG LEU VAL          
SEQRES  20 A  370  TRP GLN SER LYS VAL GLY PRO MET PRO TRP LEU GLY PRO          
SEQRES  21 A  370  GLN THR ASP GLU SER ILE LYS GLY LEU CYS GLU ARG GLY          
SEQRES  22 A  370  ARG LYS ASN ILE LEU LEU VAL PRO ILE ALA PHE THR SER          
SEQRES  23 A  370  ASP HIS ILE GLN THR LEU TYR GLU LEU ASP ILE GLU TYR          
SEQRES  24 A  370  SER GLN VAL LEU ALA LYS GLU CYS GLY VAL GLU ASN ILE          
SEQRES  25 A  370  ARG ARG ALA GLU SER LEU ASN GLY ASN PRO LEU PHE SER          
SEQRES  26 A  370  LYS ALA LEU ALA ASP LEU VAL HIS SER HIS ILE GLN SER          
SEQRES  27 A  370  ASN GLU LEU CYS SER LYS GLN LEU THR LEU SER CYS PRO          
SEQRES  28 A  370  LEU CYS VAL ASN PRO VAL CYS ARG GLU THR LYS SER PHE          
SEQRES  29 A  370  PHE THR SER GLN GLN LEU                                      
SEQRES   1 B  370  MET GLY GLY SER HIS HIS HIS HIS HIS HIS GLY ARG LYS          
SEQRES   2 B  370  PRO LYS THR GLY ILE LEU MET LEU ASN MET GLY GLY PRO          
SEQRES   3 B  370  GLU THR LEU GLY ASP VAL HIS ASP PHE LEU LEU ARG LEU          
SEQRES   4 B  370  PHE LEU ASP ARG ASP LEU MET THR LEU PRO ILE GLN ASN          
SEQRES   5 B  370  LYS LEU ALA PRO PHE ILE ALA LYS ARG ARG THR PRO LYS          
SEQRES   6 B  370  ILE GLN GLU GLN TYR ARG ARG ILE GLY GLY GLY SER PRO          
SEQRES   7 B  370  ILE LYS ILE TRP THR SER LYS GLN GLY GLU GLY MET VAL          
SEQRES   8 B  370  LYS LEU LEU ASP GLU LEU SER PRO ASN THR ALA PRO HIS          
SEQRES   9 B  370  LYS TYR TYR ILE GLY PHE ARG TYR VAL HIS PRO LEU THR          
SEQRES  10 B  370  GLU GLU ALA ILE GLU GLU MET GLU ARG ASP GLY LEU GLU          
SEQRES  11 B  370  ARG ALA ILE ALA PHE THR GLN TYR PRO GLN TYR SER CYS          
SEQRES  12 B  370  SER THR THR GLY SER SER LEU ASN ALA ILE TYR ARG TYR          
SEQRES  13 B  370  TYR ASN GLN VAL GLY ARG LYS PRO THR MET LYS TRP SER          
SEQRES  14 B  370  THR ILE ASP ARG TRP PRO THR HIS HIS LEU LEU ILE GLN          
SEQRES  15 B  370  CYS PHE ALA ASP HIS ILE LEU LYS GLU LEU ASP HIS PHE          
SEQRES  16 B  370  PRO LEU GLU LYS ARG SER GLU VAL VAL ILE LEU PHE SER          
SEQRES  17 B  370  ALA HIS SER LEU PRO MET SER VAL VAL ASN ARG GLY ASP          
SEQRES  18 B  370  PRO TYR PRO GLN GLU VAL SER ALA THR VAL GLN LYS VAL          
SEQRES  19 B  370  MET GLU ARG LEU GLU TYR CYS ASN PRO TYR ARG LEU VAL          
SEQRES  20 B  370  TRP GLN SER LYS VAL GLY PRO MET PRO TRP LEU GLY PRO          
SEQRES  21 B  370  GLN THR ASP GLU SER ILE LYS GLY LEU CYS GLU ARG GLY          
SEQRES  22 B  370  ARG LYS ASN ILE LEU LEU VAL PRO ILE ALA PHE THR SER          
SEQRES  23 B  370  ASP HIS ILE GLN THR LEU TYR GLU LEU ASP ILE GLU TYR          
SEQRES  24 B  370  SER GLN VAL LEU ALA LYS GLU CYS GLY VAL GLU ASN ILE          
SEQRES  25 B  370  ARG ARG ALA GLU SER LEU ASN GLY ASN PRO LEU PHE SER          
SEQRES  26 B  370  LYS ALA LEU ALA ASP LEU VAL HIS SER HIS ILE GLN SER          
SEQRES  27 B  370  ASN GLU LEU CYS SER LYS GLN LEU THR LEU SER CYS PRO          
SEQRES  28 B  370  LEU CYS VAL ASN PRO VAL CYS ARG GLU THR LYS SER PHE          
SEQRES  29 B  370  PHE THR SER GLN GLN LEU                                      
HET    IMD  A 501       5                                                       
HET    BCT  A 502       4                                                       
HET    GOL  A 503      12                                                       
HET    CHD  A 504      29                                                       
HET    CHD  A 505      29                                                       
HET     CL  A 506       1                                                       
HET    HEM  A 507      43                                                       
HET    FES  A 508       4                                                       
HET    IMD  B 501       5                                                       
HET    BCT  B 502       4                                                       
HET    CHD  B 503      29                                                       
HET    CHD  B 504      29                                                       
HET    CHD  B 505      29                                                       
HET    HEM  B 506      43                                                       
HET    FES  B 507       4                                                       
HETNAM     IMD IMIDAZOLE                                                        
HETNAM     BCT BICARBONATE ION                                                  
HETNAM     GOL GLYCEROL                                                         
HETNAM     CHD CHOLIC ACID                                                      
HETNAM      CL CHLORIDE ION                                                     
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETNAM     FES FE2/S2 (INORGANIC) CLUSTER                                       
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
HETSYN     HEM HEME                                                             
FORMUL   3  IMD    2(C3 H5 N2 1+)                                               
FORMUL   4  BCT    2(C H O3 1-)                                                 
FORMUL   5  GOL    C3 H8 O3                                                     
FORMUL   6  CHD    5(C24 H40 O5)                                                
FORMUL   8   CL    CL 1-                                                        
FORMUL   9  HEM    2(C34 H32 FE N4 O4)                                          
FORMUL  10  FES    2(FE2 S2)                                                    
FORMUL  18  HOH   *341(H2 O)                                                    
HELIX    1   1 THR A   81  GLY A   83  5                                   3    
HELIX    2   2 ASP A   84  LEU A   94  1                                  11    
HELIX    3   3 ILE A  103  ARG A  125  1                                  23    
HELIX    4   4 PRO A  131  SER A  151  1                                  21    
HELIX    5   5 PRO A  152  ALA A  155  5                                   4    
HELIX    6   6 LEU A  169  ASP A  180  1                                  12    
HELIX    7   7 THR A  198  VAL A  213  1                                  16    
HELIX    8   8 HIS A  230  ASP A  246  1                                  17    
HELIX    9   9 LYS A  252  VAL A  256  5                                   5    
HELIX   10  10 PRO A  266  ARG A  272  1                                   7    
HELIX   11  11 PRO A  275  LEU A  291  1                                  17    
HELIX   12  12 GLN A  314  ARG A  325  1                                  12    
HELIX   13  13 THR A  344  ASP A  349  1                                   6    
HELIX   14  14 ASP A  349  CYS A  360  1                                  12    
HELIX   15  15 PRO A  375  ASN A  392  1                                  18    
HELIX   16  16 SER A  396  LEU A  401  5                                   6    
HELIX   17  17 ASN A  408  SER A  420  1                                  13    
HELIX   18  18 THR B   81  GLY B   83  5                                   3    
HELIX   19  19 ASP B   84  LEU B   94  1                                  11    
HELIX   20  20 ILE B  103  ARG B  125  1                                  23    
HELIX   21  21 PRO B  131  SER B  151  1                                  21    
HELIX   22  22 PRO B  152  ALA B  155  5                                   4    
HELIX   23  23 LEU B  169  ASP B  180  1                                  12    
HELIX   24  24 THR B  198  GLY B  214  1                                  17    
HELIX   25  25 HIS B  230  ASP B  246  1                                  17    
HELIX   26  26 LYS B  252  VAL B  256  5                                   5    
HELIX   27  27 PRO B  266  ARG B  272  1                                   7    
HELIX   28  28 PRO B  275  LEU B  291  1                                  17    
HELIX   29  29 GLN B  314  ARG B  325  1                                  12    
HELIX   30  30 THR B  344  ASP B  349  1                                   6    
HELIX   31  31 ASP B  349  GLY B  361  1                                  13    
HELIX   32  32 LEU B  376  ASN B  392  1                                  17    
HELIX   33  33 SER B  396  LEU B  401  5                                   6    
HELIX   34  34 ASN B  408  SER B  420  1                                  13    
SHEET    1   A 4 HIS A 157  PHE A 163  0                                        
SHEET    2   A 4 THR A  69  ASN A  75  1  N  MET A  73   O  TYR A 160           
SHEET    3   A 4 ARG A 184  THR A 189  1  O  PHE A 188   N  LEU A  72           
SHEET    4   A 4 LYS A 220  ILE A 224  1  O  SER A 222   N  ALA A 187           
SHEET    1   B 4 TYR A 297  GLN A 302  0                                        
SHEET    2   B 4 VAL A 257  HIS A 263  1  N  PHE A 260   O  VAL A 300           
SHEET    3   B 4 ASN A 329  PRO A 334  1  O  LEU A 331   N  VAL A 257           
SHEET    4   B 4 ASN A 364  ARG A 367  1  O  ARG A 366   N  LEU A 332           
SHEET    1   C 4 HIS B 157  PHE B 163  0                                        
SHEET    2   C 4 THR B  69  ASN B  75  1  N  ILE B  71   O  LYS B 158           
SHEET    3   C 4 ARG B 184  THR B 189  1  O  PHE B 188   N  LEU B  72           
SHEET    4   C 4 LYS B 220  ILE B 224  1  O  SER B 222   N  ALA B 187           
SHEET    1   D 4 TYR B 297  GLN B 302  0                                        
SHEET    2   D 4 VAL B 257  HIS B 263  1  N  PHE B 260   O  VAL B 300           
SHEET    3   D 4 ASN B 329  PRO B 334  1  O  LEU B 331   N  VAL B 257           
SHEET    4   D 4 ASN B 364  ARG B 367  1  O  ARG B 366   N  LEU B 332           
LINK         SG  CYS A 196                FE2  FES A 508     1555   1555  2.33  
LINK         SG  CYS A 403                FE2  FES A 508     1555   1555  2.34  
LINK         SG  CYS A 406                FE1  FES A 508     1555   1555  2.38  
LINK         SG  CYS A 411                FE1  FES A 508     1555   1555  2.32  
LINK         N1  IMD A 501                FE   HEM A 507     1555   1555  1.93  
LINK         O2  BCT A 502                FE   HEM A 507     1555   1555  2.43  
LINK         SG  CYS B 196                FE2  FES B 507     1555   1555  2.32  
LINK         SG  CYS B 403                FE2  FES B 507     1555   1555  2.36  
LINK         SG  CYS B 406                FE1  FES B 507     1555   1555  2.41  
LINK         SG  CYS B 411                FE1  FES B 507     1555   1555  2.33  
LINK         N1  IMD B 501                FE   HEM B 506     1555   1555  2.00  
LINK         O1  BCT B 502                FE   HEM B 506     1555   1555  2.45  
CISPEP   1 HIS A  167    PRO A  168          0        -3.40                     
CISPEP   2 GLY A  312    PRO A  313          0         5.44                     
CISPEP   3 ASN A  372    GLY A  373          0        -5.25                     
CISPEP   4 HIS B  167    PRO B  168          0        -5.83                     
CISPEP   5 GLY B  312    PRO B  313          0         2.47                     
SITE     1 AC1  5 SER A 264  SER A 303  TRP A 310  HEM A 507                    
SITE     2 AC1  5 HOH A 618                                                     
SITE     1 AC2  4 MET A  76  LEU A  98  TYR A 165  HEM A 507                    
SITE     1 AC3 11 PRO A 277  GLN A 278  SER A 281  TRP A 301                    
SITE     2 AC3 11 HOH A 723  HOH A 724  PRO B 277  SER B 281                    
SITE     3 AC3 11 TRP B 301  HOH B 673  HOH B 733                               
SITE     1 AC4 11 THR A 100  LEU A 101  ARG A 114  ARG A 115                    
SITE     2 AC4 11 PRO A 266  SER A 268  VAL A 305  GLY A 306                    
SITE     3 AC4 11 MET A 308  CHD A 505  HOH A 758                               
SITE     1 AC5  2 ARG A 114  CHD A 504                                          
SITE     1 AC6  5 LYS A 220  TRP A 221  LEU A 394  GLN A 422                    
SITE     2 AC6  5 HOH A 756                                                     
SITE     1 AC7 19 MET A  76  LEU A  92  PHE A  93  ARG A 115                    
SITE     2 AC7 19 TYR A 123  SER A 197  THR A 198  HIS A 263                    
SITE     3 AC7 19 PRO A 266  VAL A 305  ALA A 336  PHE A 337                    
SITE     4 AC7 19 HIS A 341  ILE A 342  IMD A 501  BCT A 502                    
SITE     5 AC7 19 HOH A 618  HOH A 619  HOH A 675                               
SITE     1 AC8  6 CYS A 196  ARG A 272  CYS A 403  CYS A 406                    
SITE     2 AC8  6 CYS A 411  HOH A 707                                          
SITE     1 AC9  6 HIS B 263  GLN B 302  SER B 303  TRP B 310                    
SITE     2 AC9  6 HEM B 506  HOH B 665                                          
SITE     1 BC1  4 MET B  76  LEU B  98  TYR B 165  HEM B 506                    
SITE     1 BC2  9 THR B 100  ARG B 115  PRO B 266  SER B 268                    
SITE     2 BC2  9 LYS B 304  VAL B 305  GLY B 306  MET B 308                    
SITE     3 BC2  9 CHD B 504                                                     
SITE     1 BC3  4 LYS A 106  PHE A 110  LEU B 101  CHD B 503                    
SITE     1 BC4  5 GLU B 393  HOH B 620  HOH B 703  HOH B 718                    
SITE     2 BC4  5 HOH B 751                                                     
SITE     1 BC5 17 MET B  76  PHE B  93  LEU B  98  ARG B 115                    
SITE     2 BC5 17 TYR B 123  SER B 197  THR B 198  HIS B 263                    
SITE     3 BC5 17 PRO B 266  ALA B 336  HIS B 341  ILE B 342                    
SITE     4 BC5 17 IMD B 501  BCT B 502  HOH B 656  HOH B 665                    
SITE     5 BC5 17 HOH B 680                                                     
SITE     1 BC6  4 CYS B 196  CYS B 403  CYS B 406  CYS B 411                    
CRYST1   86.127   92.561  109.262  90.00  90.00  90.00 P 21 21 21    8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.011611  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010804  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009152        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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