HEADER    OXYGEN TRANSPORT                        06-MAY-93   1HDA              
TITLE     A NOVEL ALLOSTERIC MECHANISM IN HAEMOGLOBIN. STRUCTURE OF BOVINE      
TITLE    2 DEOXYHAEMOGLOBIN, ABSENCE OF SPECIFIC CHLORIDE-BINDING SITES AND     
TITLE    3 ORIGIN OF THE CHLORIDE-LINKED BOHR EFFECT IN BOVINE AND HUMAN        
TITLE    4 HAEMOGLOBIN                                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HEMOGLOBIN (DEOXY) (ALPHA CHAIN);                          
COMPND   3 CHAIN: A, C;                                                         
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: HEMOGLOBIN (DEOXY) (BETA CHAIN);                           
COMPND   7 CHAIN: B, D;                                                         
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   3 ORGANISM_COMMON: CATTLE;                                             
SOURCE   4 ORGANISM_TAXID: 9913;                                                
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   7 ORGANISM_COMMON: CATTLE;                                             
SOURCE   8 ORGANISM_TAXID: 9913                                                 
KEYWDS    OXYGEN TRANSPORT                                                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    G.FERMI                                                               
REVDAT   6   07-FEB-24 1HDA    1       REMARK LINK                              
REVDAT   5   14-AUG-19 1HDA    1       REMARK                                   
REVDAT   4   17-JUL-19 1HDA    1       REMARK                                   
REVDAT   3   24-FEB-09 1HDA    1       VERSN                                    
REVDAT   2   08-MAR-95 1HDA    1       HELIX                                    
REVDAT   1   31-MAY-94 1HDA    0                                                
JRNL        AUTH   M.F.PERUTZ,G.FERMI,C.POYART,J.PAGNIER,J.KISTER               
JRNL        TITL   A NOVEL ALLOSTERIC MECHANISM IN HAEMOGLOBIN. STRUCTURE OF    
JRNL        TITL 2 BOVINE DEOXYHAEMOGLOBIN, ABSENCE OF SPECIFIC                 
JRNL        TITL 3 CHLORIDE-BINDING SITES AND ORIGIN OF THE CHLORIDE-LINKED     
JRNL        TITL 4 BOHR EFFECT IN BOVINE AND HUMAN HAEMOGLOBIN.                 
JRNL        REF    J.MOL.BIOL.                   V. 233   536 1993              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   8411160                                                      
JRNL        DOI    10.1006/JMBI.1993.1530                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : NULL                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 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 + TEST SET) : 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                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4386                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 172                                     
REMARK   3   SOLVENT ATOMS            : 42                                      
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  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : NULL  ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; 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  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1HDA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000173790.                                   
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  <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: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 52.38                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.58                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
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       31.91000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       52.66000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       47.75500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       52.66000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       31.91000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       47.75500            
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 300 REMARK: THE TRANSFORMATION PRESENTED ON *MTRIX* RECORDS BELOW WILL   
REMARK 300 YIELD APPROXIMATE COORDINATES FOR CHAINS C AND D WHEN                
REMARK 300 APPLIED TO CHAINS A AND B, RESPECTIVELY.                             
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 11250 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 23480 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -101.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                            
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 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   OD1  ASP A   116     O    HOH A   776              2.10            
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   NZ   LYS B   120     OD1  ASP D    21     1655     2.13            
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  31   NE  -  CZ  -  NH1 ANGL. DEV. =   7.7 DEGREES          
REMARK 500    ARG A  31   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.9 DEGREES          
REMARK 500    HIS A  45   CA  -  CB  -  CG  ANGL. DEV. = -12.8 DEGREES          
REMARK 500    ARG A 141   NE  -  CZ  -  NH1 ANGL. DEV. =   4.0 DEGREES          
REMARK 500    ASP B  21   CB  -  CG  -  OD1 ANGL. DEV. =   8.7 DEGREES          
REMARK 500    ASP B  21   CB  -  CG  -  OD2 ANGL. DEV. =  -6.7 DEGREES          
REMARK 500    ARG B  30   NE  -  CZ  -  NH1 ANGL. DEV. =   6.6 DEGREES          
REMARK 500    ARG B  30   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.1 DEGREES          
REMARK 500    ARG B  40   CD  -  NE  -  CZ  ANGL. DEV. =   8.5 DEGREES          
REMARK 500    ARG B  40   NE  -  CZ  -  NH1 ANGL. DEV. =   5.0 DEGREES          
REMARK 500    ASP B  79   CB  -  CG  -  OD1 ANGL. DEV. =   7.7 DEGREES          
REMARK 500    ARG B 116   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500    ASP C   6   CB  -  CG  -  OD2 ANGL. DEV. =  -5.4 DEGREES          
REMARK 500    ARG C  31   NE  -  CZ  -  NH1 ANGL. DEV. =   4.2 DEGREES          
REMARK 500    HIS C  45   CA  -  CB  -  CG  ANGL. DEV. = -12.4 DEGREES          
REMARK 500    ASP C  47   CB  -  CG  -  OD2 ANGL. DEV. =   6.8 DEGREES          
REMARK 500    ASP C  75   CB  -  CG  -  OD1 ANGL. DEV. =   6.7 DEGREES          
REMARK 500    ARG C  92   NE  -  CZ  -  NH1 ANGL. DEV. =   5.4 DEGREES          
REMARK 500    ARG C  92   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.9 DEGREES          
REMARK 500    ASP C 126   CB  -  CG  -  OD1 ANGL. DEV. =   6.8 DEGREES          
REMARK 500    ARG C 141   NE  -  CZ  -  NH1 ANGL. DEV. =   4.9 DEGREES          
REMARK 500    GLU D   6   OE1 -  CD  -  OE2 ANGL. DEV. =   8.6 DEGREES          
REMARK 500    ARG D  30   NE  -  CZ  -  NH1 ANGL. DEV. =   4.3 DEGREES          
REMARK 500    ARG D  30   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.8 DEGREES          
REMARK 500    ARG D  40   CD  -  NE  -  CZ  ANGL. DEV. =   8.7 DEGREES          
REMARK 500    ARG D  40   NE  -  CZ  -  NH1 ANGL. DEV. =   4.6 DEGREES          
REMARK 500    ARG D  40   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.8 DEGREES          
REMARK 500    LEU D  48   CA  -  CB  -  CG  ANGL. DEV. =  14.0 DEGREES          
REMARK 500    ARG D 116   CD  -  NE  -  CZ  ANGL. DEV. =  21.8 DEGREES          
REMARK 500    ARG D 116   NE  -  CZ  -  NH1 ANGL. DEV. =   7.3 DEGREES          
REMARK 500    ARG D 116   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.2 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    ASP A  75       56.00   -152.16                                   
REMARK 500    LEU B  78      -18.70    -48.20                                   
REMARK 500    HIS C  72       52.69   -119.66                                   
REMARK 500    ASP C  75       60.23   -167.03                                   
REMARK 500    ASP D  80       71.26   -151.65                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    ARG D 116         0.11    SIDE CHAIN                              
REMARK 500    ARG D 144         0.07    SIDE CHAIN                              
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                             HEM A 143  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  87   NE2                                                    
REMARK 620 2 HEM A 143   NA   96.2                                              
REMARK 620 3 HEM A 143   NB   97.4  87.5                                        
REMARK 620 4 HEM A 143   NC  105.8 157.9  87.3                                  
REMARK 620 5 HEM A 143   ND  108.1  87.7 154.4  87.8                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM B 148  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B  92   NE2                                                    
REMARK 620 2 HEM B 148   NA   95.2                                              
REMARK 620 3 HEM B 148   NB  101.1  87.1                                        
REMARK 620 4 HEM B 148   NC  103.2 161.6  88.4                                  
REMARK 620 5 HEM B 148   ND   98.1  89.3 160.7  89.0                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM C 143  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS C  87   NE2                                                    
REMARK 620 2 HEM C 143   NA   96.4                                              
REMARK 620 3 HEM C 143   NB   98.3  88.0                                        
REMARK 620 4 HEM C 143   NC  105.4 158.1  86.8                                  
REMARK 620 5 HEM C 143   ND  105.4  88.2 156.3  88.1                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM D 148  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS D  92   NE2                                                    
REMARK 620 2 HEM D 148   NA   86.8                                              
REMARK 620 3 HEM D 148   NB  103.4  88.0                                        
REMARK 620 4 HEM D 148   NC  109.9 163.3  88.6                                  
REMARK 620 5 HEM D 148   ND   94.5  89.6 161.8  88.5                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: A1                                                  
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: NULL                                               
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: B1                                                  
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: NULL                                               
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: C1                                                  
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: NULL                                               
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: D1                                                  
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: NULL                                               
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 143                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 148                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM C 143                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM D 148                 
DBREF  1HDA A    1   141  UNP    P01966   HBA_BOVIN        1    141             
DBREF  1HDA B    2   146  UNP    P02070   HBB_BOVIN        1    145             
DBREF  1HDA C    1   141  UNP    P01966   HBA_BOVIN        1    141             
DBREF  1HDA D    2   146  UNP    P02070   HBB_BOVIN        1    145             
SEQRES   1 A  141  VAL LEU SER ALA ALA ASP LYS GLY ASN VAL LYS ALA ALA          
SEQRES   2 A  141  TRP GLY LYS VAL GLY GLY HIS ALA ALA GLU TYR GLY ALA          
SEQRES   3 A  141  GLU ALA LEU GLU ARG MET PHE LEU SER 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 GLY HIS GLY ALA LYS VAL ALA ALA ALA          
SEQRES   6 A  141  LEU THR LYS ALA VAL GLU HIS LEU ASP ASP LEU PRO GLY          
SEQRES   7 A  141  ALA LEU SER GLU LEU SER ASP LEU HIS ALA HIS LYS LEU          
SEQRES   8 A  141  ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS SER          
SEQRES   9 A  141  LEU LEU VAL THR LEU ALA SER HIS LEU PRO SER ASP PHE          
SEQRES  10 A  141  THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA          
SEQRES  11 A  141  ASN VAL SER THR VAL LEU THR SER LYS TYR ARG                  
SEQRES   1 B  145  MET LEU THR ALA GLU GLU LYS ALA ALA VAL THR ALA PHE          
SEQRES   2 B  145  TRP GLY LYS VAL LYS VAL ASP GLU VAL GLY GLY GLU ALA          
SEQRES   3 B  145  LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN ARG          
SEQRES   4 B  145  PHE PHE GLU SER PHE GLY ASP LEU SER THR ALA ASP ALA          
SEQRES   5 B  145  VAL MET ASN ASN PRO LYS VAL LYS ALA HIS GLY LYS LYS          
SEQRES   6 B  145  VAL LEU ASP SER PHE SER ASN GLY MET LYS HIS LEU ASP          
SEQRES   7 B  145  ASP LEU LYS GLY THR PHE ALA ALA LEU SER GLU LEU HIS          
SEQRES   8 B  145  CYS ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE LYS LEU          
SEQRES   9 B  145  LEU GLY ASN VAL LEU VAL VAL VAL LEU ALA ARG ASN PHE          
SEQRES  10 B  145  GLY LYS GLU PHE THR PRO VAL LEU GLN ALA ASP PHE GLN          
SEQRES  11 B  145  LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS ARG          
SEQRES  12 B  145  TYR HIS                                                      
SEQRES   1 C  141  VAL LEU SER ALA ALA ASP LYS GLY ASN VAL LYS ALA ALA          
SEQRES   2 C  141  TRP GLY LYS VAL GLY GLY HIS ALA ALA GLU TYR GLY ALA          
SEQRES   3 C  141  GLU ALA LEU GLU ARG MET PHE LEU SER PHE PRO THR THR          
SEQRES   4 C  141  LYS THR TYR PHE PRO HIS PHE ASP LEU SER HIS GLY SER          
SEQRES   5 C  141  ALA GLN VAL LYS GLY HIS GLY ALA LYS VAL ALA ALA ALA          
SEQRES   6 C  141  LEU THR LYS ALA VAL GLU HIS LEU ASP ASP LEU PRO GLY          
SEQRES   7 C  141  ALA LEU SER GLU LEU SER ASP LEU HIS ALA HIS LYS LEU          
SEQRES   8 C  141  ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS SER          
SEQRES   9 C  141  LEU LEU VAL THR LEU ALA SER HIS LEU PRO SER ASP PHE          
SEQRES  10 C  141  THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA          
SEQRES  11 C  141  ASN VAL SER THR VAL LEU THR SER LYS TYR ARG                  
SEQRES   1 D  145  MET LEU THR ALA GLU GLU LYS ALA ALA VAL THR ALA PHE          
SEQRES   2 D  145  TRP GLY LYS VAL LYS VAL ASP GLU VAL GLY GLY GLU ALA          
SEQRES   3 D  145  LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN ARG          
SEQRES   4 D  145  PHE PHE GLU SER PHE GLY ASP LEU SER THR ALA ASP ALA          
SEQRES   5 D  145  VAL MET ASN ASN PRO LYS VAL LYS ALA HIS GLY LYS LYS          
SEQRES   6 D  145  VAL LEU ASP SER PHE SER ASN GLY MET LYS HIS LEU ASP          
SEQRES   7 D  145  ASP LEU LYS GLY THR PHE ALA ALA LEU SER GLU LEU HIS          
SEQRES   8 D  145  CYS ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE LYS LEU          
SEQRES   9 D  145  LEU GLY ASN VAL LEU VAL VAL VAL LEU ALA ARG ASN PHE          
SEQRES  10 D  145  GLY LYS GLU PHE THR PRO VAL LEU GLN ALA ASP PHE GLN          
SEQRES  11 D  145  LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS ARG          
SEQRES  12 D  145  TYR HIS                                                      
HET    HEM  A 143      43                                                       
HET    HEM  B 148      43                                                       
HET    HEM  C 143      43                                                       
HET    HEM  D 148      43                                                       
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETSYN     HEM HEME                                                             
FORMUL   5  HEM    4(C34 H32 FE N4 O4)                                          
FORMUL   9  HOH   *42(H2 O)                                                     
HELIX    1 AA1 SER A    3  GLY A   18  1                                  16    
HELIX    2 AB1 HIS A   20  SER A   35  1                                  16    
HELIX    3 AC1 PHE A   36  TYR A   42  1                                   7    
HELIX    4 AE1 SER A   52  GLU A   71  1                                  20    
HELIX    5 AF1 LEU A   80  ALA A   88  1                                   9    
HELIX    6 AG1 ASP A   94  HIS A  112  1                                  19    
HELIX    7 AH1 THR A  118  SER A  138  1                                  21    
HELIX    8 BA1 THR B    4  VAL B   18  1                                  15    
HELIX    9 BB1 LYS B   19  VAL B   34  1                                  16    
HELIX   10 BC1 TYR B   35  PHE B   41  1                                   7    
HELIX   11 BD1 THR B   50  ASN B   56  1                                   7    
HELIX   12 BE1 ASN B   57  LYS B   76  1                                  20    
HELIX   13 BF1 PHE B   85  CYS B   93  1                                   9    
HELIX   14 BG1 ASP B   99  ASN B  117  1                                  19    
HELIX   15 BH1 THR B  123  HIS B  143  1                                  21    
HELIX   16 CA2 SER C    3  GLY C   18  1                                  16    
HELIX   17 CB2 HIS C   20  SER C   35  1                                  16    
HELIX   18 CC2 PHE C   36  TYR C   42  1                                   7    
HELIX   19 CE2 SER C   52  GLU C   71  1                                  20    
HELIX   20 CF2 LEU C   80  ALA C   88  1                                   9    
HELIX   21 CG2 ASP C   94  HIS C  112  1                                  19    
HELIX   22 CH2 THR C  118  SER C  138  1                                  21    
HELIX   23 DA2 THR D    4  VAL D   18  1                                  15    
HELIX   24 DB2 LYS D   19  VAL D   34  1                                  16    
HELIX   25 DC2 TYR D   35  PHE D   41  1                                   7    
HELIX   26 DD2 THR D   50  ASN D   56  1                                   7    
HELIX   27 DE2 ASN D   57  LYS D   76  1                                  20    
HELIX   28 DF2 PHE D   85  CYS D   93  1                                   9    
HELIX   29 DG2 ASP D   99  ASN D  117  1                                  19    
HELIX   30 DH2 THR D  123  HIS D  143  1                                  21    
LINK         NE2 HIS A  87                FE   HEM A 143     1555   1555  2.33  
LINK         NE2 HIS B  92                FE   HEM B 148     1555   1555  2.27  
LINK         NE2 HIS C  87                FE   HEM C 143     1555   1555  2.20  
LINK         NE2 HIS D  92                FE   HEM D 148     1555   1555  2.25  
SITE     1  A1  1 HIS A  87                                                     
SITE     1  B1  1 HIS B  92                                                     
SITE     1  C1  1 HIS C  87                                                     
SITE     1  D1  1 HIS D  92                                                     
SITE     1 AC1 15 TYR A  42  PHE A  43  HIS A  58  LYS A  61                    
SITE     2 AC1 15 LEU A  86  HIS A  87  LEU A  91  VAL A  93                    
SITE     3 AC1 15 ASN A  97  PHE A  98  LEU A 101  LEU A 136                    
SITE     4 AC1 15 HOH A 762  HOH A 765  LYS C  61                               
SITE     1 AC2 14 HIS A  72  ASP A  75  HOH A 772  PHE B  42                    
SITE     2 AC2 14 HIS B  63  LYS B  66  VAL B  67  SER B  70                    
SITE     3 AC2 14 HIS B  92  LEU B  96  ASN B 102  PHE B 103                    
SITE     4 AC2 14 LEU B 106  LEU B 141                                          
SITE     1 AC3 16 HIS A  45  TYR C  42  PHE C  43  HIS C  45                    
SITE     2 AC3 16 HIS C  58  LYS C  61  LEU C  83  HIS C  87                    
SITE     3 AC3 16 LEU C  91  VAL C  93  ASN C  97  PHE C  98                    
SITE     4 AC3 16 LEU C 101  LEU C 136  HOH C 761  HOH C 774                    
SITE     1 AC4 10 LYS B   8  PHE D  42  HIS D  63  VAL D  67                    
SITE     2 AC4 10 SER D  70  HIS D  92  LEU D  96  ASN D 102                    
SITE     3 AC4 10 PHE D 103  LEU D 141                                          
CRYST1   63.820   95.510  105.320  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      0.015669  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010470  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009495        0.00000                         
MTRIX1   1 -0.955772  0.281501  0.085119       23.80100    1                    
MTRIX2   1  0.281501  0.791944  0.541849       -7.12200    1                    
MTRIX3   1  0.085119  0.541849 -0.836165       11.18600    1