PDB entry 2mhb

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HEADER    OXYGEN TRANSPORT                        14-FEB-77   2MHB              
TITLE     THE STRUCTURE OF HORSE METHAEMOGLOBIN AT 2.0 ANGSTROMS                
TITLE    2 RESOLUTION                                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HEMOGLOBIN (AQUO MET) (ALPHA CHAIN);                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: HEMOGLOBIN (AQUO MET) (BETA CHAIN);                        
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: EQUUS CABALLUS;                                 
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 ORGANISM_SCIENTIFIC: EQUUS CABALLUS                                  
KEYWDS    OXYGEN TRANSPORT                                                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.C.LADNER,E.G.HEIDNER,M.F.PERUTZ                                     
REVDAT   6   01-APR-03 2MHB    1       JRNL                                     
REVDAT   5   30-SEP-83 2MHB    1       REVDAT                                   
REVDAT   4   20-JUL-78 2MHB    2       CONECT                                   
REVDAT   3   01-NOV-77 2MHB    1       AUTHOR JRNL   REMARK FORMUL              
REVDAT   2   14-OCT-77 2MHB    1       REMARK                                   
REVDAT   1   18-APR-77 2MHB    0                                                
SPRSDE     18-APR-77 2MHB      1MHB                                             
JRNL        AUTH   R.C.LADNER,E.J.HEIDNER,M.F.PERUTZ                            
JRNL        TITL   THE STRUCTURE OF HORSE METHAEMOGLOBIN AT 2-0 A               
JRNL        TITL 2 RESOLUTION.                                                  
JRNL        REF    J.MOL.BIOL.                   V. 114   385 1977              
JRNL        REFN   ASTM JMOBAK  UK ISSN 0022-2836                               
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   M.F.PERUTZ,H.MUIRHEAD,J.M.COX,L.C.G.GOAMAN                   
REMARK   1  TITL   THREE-DIMENSIONAL FOURIER SYNTHESIS OF HORSE                 
REMARK   1  TITL 2 OXYHAEMOGLOBIN AT 2.8 ANGSTROMS RESOLUTION,THE               
REMARK   1  TITL 3 ATOMIC MODEL                                                 
REMARK   1  REF    NATURE                        V. 219   131 1968              
REMARK   1  REFN   ASTM NATUAS  UK ISSN 0028-0836                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   R.C.LADNER,G.M.AIR,J.H.FOGG                                  
REMARK   1  TITL   A CORRECTION TO THE SEQUENCE OF THE ALPHA CHAINS             
REMARK   1  TITL 2 OF HORSE HAEMOGLOBIN                                         
REMARK   1  REF    J.MOL.BIOL.                   V. 103   675 1976              
REMARK   1  REFN   ASTM JMOBAK  UK ISSN 0022-2836                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  EDIT   R.J.FELDMANN                                                 
REMARK   1  REF    ATLAS OF MACROMOLECULAR                 43 1976              
REMARK   1  REF  2 STRUCTURE ON MICROFICHE                                      
REMARK   1  PUBL   TRACOR JITCO INC.,ROCKVILLE,MD.                              
REMARK   1  REFN                   ISBN 0-917934-01-6                           
REMARK   1 REFERENCE 4                                                          
REMARK   1  EDIT   M.O.DAYHOFF                                                  
REMARK   1  REF    ATLAS OF PROTEIN SEQUENCE     V.   5    59 1972              
REMARK   1  REF  2 AND STRUCTURE (DATA SECTION)                                 
REMARK   1  PUBL   NATIONAL BIOMEDICAL RESEARCH FOUNDATION, SILVER              
REMARK   1  PUBL 2 SPRING,MD.                                                   
REMARK   1  REFN                   ISBN 0-912466-02-2                           
REMARK   2                                                                      
REMARK   2 RESOLUTION. 2.00 ANGSTROMS.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : NULL                                                 
REMARK   3   AUTHORS     : NULL                                                 
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : NULL                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : NULL                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2203                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 88                                      
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : NULL                            
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2MHB COMPLIES WITH FORMAT V. 3.0, 1-DEC-2006                         
REMARK   4                                                                      
REMARK   4 THIS IS THE REMEDIATED VERSION OF THIS PDB ENTRY.                    
REMARK   4 REMEDIATED DATA FILE REVISION 3.100 (2007-03-23)                     
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200   FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 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   FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
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   (%): 55.95                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.79                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   1/2+X,1/2+Y,Z                                           
REMARK 290       4555   1/2-X,1/2+Y,-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        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       54.12000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       31.56500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       54.12000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       31.56500            
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 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT             
REMARK 300 WHICH CONSISTS OF 2 CHAIN(S). SEE REMARK 350 FOR                     
REMARK 300 INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S).                
REMARK 350                                                                      
REMARK 350 GENERATING THE BIOMOLECULE                                           
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 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 350   BIOMT1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
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                             
REMARK 500   O    HIS B   143     N    TYR B   145              1.30            
REMARK 500   NZ   LYS A    61     O1A  HEM A     1              1.95            
REMARK 500  FE    HEM A     1     O    HOH A     1              1.99            
REMARK 500  FE    HEM B     1     O    HOH B     1              1.99            
REMARK 500   NZ   LYS A     7     OD2  ASP A    74              2.06            
REMARK 500   NE2  HIS A    87    FE    HEM A     1              2.13            
REMARK 500   NE2  HIS B    92    FE    HEM B     1              2.18            
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   CE   LYS A   127     O    TYR A   140     2555     1.90            
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: ENGH AND HUBER, 1991                                
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    HIS A  50   CA  -  CB  -  CG  ANGL. DEV. =-19.5 DEGREES           
REMARK 500    HIS A  50   N   -  CA  -  C   ANGL. DEV. = 16.5 DEGREES           
REMARK 500    HIS A  89   CA  -  CB  -  CG  ANGL. DEV. = 16.3 DEGREES           
DBREF  2MHB A    1   141  UNP    P01958   HBA_HORSE        1    141             
DBREF  2MHB B    1   146  UNP    P02062   HBB_HORSE        1    146             
SEQADV 2MHB ASP A   82  UNP  P01958    ASN    82 CONFLICT                       
SEQADV 2MHB ASN A   85  UNP  P01958    ASP    85 CONFLICT                       
SEQRES   1 A  141  VAL LEU SER ALA ALA ASP LYS THR ASN VAL LYS ALA ALA          
SEQRES   2 A  141  TRP SER LYS VAL GLY GLY HIS ALA GLY GLU TYR GLY ALA          
SEQRES   3 A  141  GLU ALA LEU GLU ARG MET PHE LEU GLY PHE PRO THR THR          
SEQRES   4 A  141  LYS THR TYR PHE PRO HIS PHE ASP LEU SER HIS GLY SER          
SEQRES   5 A  141  ALA GLN VAL LYS ALA HIS GLY LYS LYS VAL GLY ASP ALA          
SEQRES   6 A  141  LEU THR LEU ALA VAL GLY HIS LEU ASP ASP LEU PRO GLY          
SEQRES   7 A  141  ALA LEU SER ASP LEU SER ASN LEU HIS ALA HIS LYS LEU          
SEQRES   8 A  141  ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS CYS          
SEQRES   9 A  141  LEU LEU SER THR LEU ALA VAL HIS LEU PRO ASN ASP PHE          
SEQRES  10 A  141  THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU SER          
SEQRES  11 A  141  SER VAL SER THR VAL LEU THR SER LYS TYR ARG                  
SEQRES   1 B  146  VAL GLN LEU SER GLY GLU GLU LYS ALA ALA VAL LEU ALA          
SEQRES   2 B  146  LEU TRP ASP LYS VAL ASN GLU GLU GLU VAL GLY GLY GLU          
SEQRES   3 B  146  ALA LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN          
SEQRES   4 B  146  ARG PHE PHE ASP SER PHE GLY ASP LEU SER ASN PRO GLY          
SEQRES   5 B  146  ALA VAL MET GLY ASN PRO LYS VAL LYS ALA HIS GLY LYS          
SEQRES   6 B  146  LYS VAL LEU HIS SER PHE GLY GLU GLY VAL HIS HIS LEU          
SEQRES   7 B  146  ASP ASN LEU LYS GLY THR PHE ALA ALA LEU SER GLU LEU          
SEQRES   8 B  146  HIS CYS ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE ARG          
SEQRES   9 B  146  LEU LEU GLY ASN VAL LEU VAL VAL VAL LEU ALA ARG HIS          
SEQRES  10 B  146  PHE GLY LYS ASP PHE THR PRO GLU LEU GLN ALA SER TYR          
SEQRES  11 B  146  GLN LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS          
SEQRES  12 B  146  LYS TYR HIS                                                  
HET    HEM  A   1      43                                                       
HET    HEM  B   1      43                                                       
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETSYN     HEM HEME                                                             
FORMUL   3  HEM    2(C34 H32 FE N4 O4)                                          
FORMUL   5  HOH   *2(H2 O)                                                      
HELIX    1  AA SER A    3  GLY A   18  1                                  16    
HELIX    2  BA HIS A   20  GLY A   35  1                                  16    
HELIX    3  CA PHE A   36  TYR A   42  5                                   7    
HELIX    4  EA SER A   52  GLY A   71  1SLIGHTLY IRREGULAR                20    
HELIX    5  FA LEU A   80  ALA A   88  1                                   9    
HELIX    6 FGA HIS A   87  ARG A   92  3                                   6    
HELIX    7  GA ASP A   94  HIS A  112  1                                  19    
HELIX    8  HA THR A  118  SER A  138  1                                  21    
HELIX    9  AB SER B    4  VAL B   18  1                                  15    
HELIX   10  BB ASN B   19  VAL B   34  1                                  16    
HELIX   11  CB TYR B   35  PHE B   41  5                                   7    
HELIX   12  DB ASN B   50  GLY B   56  1                                   7    
HELIX   13  EB ASN B   57  HIS B   76  1RATHER IRREGULAR                  20    
HELIX   14  FB PHE B   85  CYS B   93  1                                   9    
HELIX   15 FGB HIS B   92  HIS B   97  3                                   6    
HELIX   16  GB ASP B   99  HIS B  117  1                                  19    
HELIX   17  HB THR B  123  HIS B  143  1                                  21    
SITE     1 AHM 17 TYR A  42  PHE A  43  HIS A  45  PHE A  46                    
SITE     2 AHM 17 HIS A  58  LYS A  61  VAL A  62  ALA A  65                    
SITE     3 AHM 17 LEU A  83  LEU A  86  HIS A  87  LYS A  90                    
SITE     4 AHM 17 VAL A  93  ASN A  97  PHE A  98  LEU A 101                    
SITE     5 AHM 17 LEU A 136                                                     
SITE     1 BHM 17 PHE B  41  PHE B  42  PHE B  45  HIS B  63                    
SITE     2 BHM 17 LYS B  66  VAL B  67  SER B  70  PHE B  71                    
SITE     3 BHM 17 LEU B  88  LEU B  91  HIS B  92  LEU B  96                    
SITE     4 BHM 17 VAL B  98  ASN B 102  PHE B 103  LEU B 106                    
SITE     5 BHM 17 LEU B 141                                                     
CRYST1  108.240   63.130   54.540  90.00 110.85  90.00 C 1 2 1       4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.009239  0.000000  0.003519        0.00000                         
SCALE2      0.000000  0.015840  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.019620        0.00000