HEADER    OXYGEN STORAGE/TRANSPORT                29-AUG-02   1MKO              
TITLE     A FOURTH QUATERNARY STRUCTURE OF HUMAN HEMOGLOBIN A AT 2.18 A         
TITLE    2 RESOLUTION                                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HEMOGLOBIN ALPHA CHAIN;                                    
COMPND   3 CHAIN: A, C;                                                         
COMPND   4 MOL_ID: 2;                                                           
COMPND   5 MOLECULE: HEMOGLOBIN BETA CHAIN;                                     
COMPND   6 CHAIN: B, D                                                          
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 ORGAN: BLOOD;                                                        
SOURCE   6 MOL_ID: 2;                                                           
SOURCE   7 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   8 ORGANISM_COMMON: HUMAN;                                              
SOURCE   9 ORGANISM_TAXID: 9606                                                 
KEYWDS    HEMOGLOBIN, RELAXED STATE, ALLOSTERIC, RR2 STATE, CARBONMONOXY-       
KEYWDS   2 INTERMEDIATE, OXYGEN STORAGE-TRANSPORT COMPLEX                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.K.SAFO,D.J.ABRAHAM                                                  
REVDAT   5   14-FEB-24 1MKO    1       REMARK LINK                              
REVDAT   4   11-OCT-17 1MKO    1       REMARK                                   
REVDAT   3   24-FEB-09 1MKO    1       VERSN                                    
REVDAT   2   14-JUN-05 1MKO    1       JRNL   REMARK                            
REVDAT   1   06-SEP-02 1MKO    0                                                
JRNL        AUTH   M.K.SAFO,D.J.ABRAHAM                                         
JRNL        TITL   THE ENIGMA OF THE LIGANDED HEMOGLOBIN END STATE: A NOVEL     
JRNL        TITL 2 QUATERNARY STRUCTURE OF HUMAN CARBONMONOXY HEMOGLOBIN.       
JRNL        REF    BIOCHEMISTRY                  V.  44  8347 2005              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   15938624                                                     
JRNL        DOI    10.1021/BI050412Q                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.18 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 0.5                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.18                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 1.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 88.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 26700                          
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 SET) : 0.200                           
REMARK   3   FREE R VALUE                     : 0.284                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.200                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1377                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.008                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.18                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.32                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 60.80                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 2842                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2180                       
REMARK   3   BIN FREE R VALUE                    : 0.3040                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.00                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 151                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.025                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4384                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 195                                     
REMARK   3   SOLVENT ATOMS            : 325                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 24.40                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 33.20                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 10.50000                                             
REMARK   3    B22 (A**2) : -4.78000                                             
REMARK   3    B33 (A**2) : -5.71000                                             
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.24                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.16                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.36                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.29                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.017                           
REMARK   3   BOND ANGLES            (DEGREES) : 2.200                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 19.70                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.710                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
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  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.35                                                 
REMARK   3   BSOL        : 50.96                                                
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  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  4  : PHOSPHATE.PAR                                  
REMARK   3  PARAMETER FILE  5  : 1_PARAMETER_INFILE_6                           
REMARK   3  PARAMETER FILE  6  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  4   : PHOSPHATE.TOP                                  
REMARK   3  TOPOLOGY FILE  5   : 1_TOPOLOGY_INFILE_6                            
REMARK   3  TOPOLOGY FILE  6   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1MKO COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-SEP-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000016988.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 21-FEB-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.4                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : OSMIC MIRRORS                      
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IIC                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : BIOTEX                             
REMARK 200  DATA SCALING SOFTWARE          : BIOTEX                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 27473                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.180                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 91.0                               
REMARK 200  DATA REDUNDANCY                : 4.500                              
REMARK 200  R MERGE                    (I) : 0.06500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.18                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.28                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.22800                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.300                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 2HHB                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.44                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.25                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: POTASSIUM AND SODIUM PHOSPHATE,          
REMARK 280  TOLUENE, HEMOGLOBIN, PH 6.4, LIQUID DIFFUSION AT 298K               
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       32.76500            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       27.63500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       77.28500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       27.63500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       32.76500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       77.28500            
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: ASYMMETRIC UNIT CONTAINS THE FUNCTIONAL HB TETRAMER          
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: 12590 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 23570 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -132.0 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: 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    ASP C  47   N   -  CA  -  C   ANGL. DEV. = -17.6 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    PRO A  37      -28.33    -39.46                                   
REMARK 500    HIS A  72       40.58   -145.81                                   
REMARK 500    ASP A  75       53.39   -154.93                                   
REMARK 500    LEU A 113       65.82   -113.90                                   
REMARK 500    LYS A 139       80.14   -157.39                                   
REMARK 500    HIS B   2      103.77    153.31                                   
REMARK 500    ASN B  80       59.45   -150.73                                   
REMARK 500    LYS B 144        1.95    -61.20                                   
REMARK 500    HIS C  50      -94.69    -23.06                                   
REMARK 500    HIS C  72        8.87    171.77                                   
REMARK 500    ASP C  75       36.25   -147.79                                   
REMARK 500    ALA C  79       16.78    -67.28                                   
REMARK 500    LEU C  80       12.40   -151.94                                   
REMARK 500    TYR C 140      -28.13   -174.79                                   
REMARK 500    HIS D  77       66.00   -154.76                                   
REMARK 500    LYS D 144        0.04    -63.42                                   
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   88.8                                              
REMARK 620 3 HEM A 143   NB   93.5  86.0                                        
REMARK 620 4 HEM A 143   NC   94.9 175.8  92.0                                  
REMARK 620 5 HEM A 143   ND   89.4  91.9 176.4  90.0                            
REMARK 620 6 CMO A 142   C   176.0  93.3  90.1  83.1  87.1                      
REMARK 620 7 CMO A 142   O   176.5  92.6  89.8  83.7  87.4   0.7                
REMARK 620 N                    1     2     3     4     5     6                 
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   89.8                                              
REMARK 620 3 HEM B 148   NB   85.7  88.1                                        
REMARK 620 4 HEM B 148   NC   89.6 178.2  90.1                                  
REMARK 620 5 HEM B 148   ND   88.9  91.7 174.5  90.0                            
REMARK 620 6 CMO B 147   C   175.5  94.5  95.6  86.1  89.8                      
REMARK 620 7 CMO B 147   O   171.6  98.4  96.5  82.3  88.9   3.9                
REMARK 620 N                    1     2     3     4     5     6                 
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   86.5                                              
REMARK 620 3 HEM C 143   NB   88.9  89.1                                        
REMARK 620 4 HEM C 143   NC   94.4 176.7  94.0                                  
REMARK 620 5 HEM C 143   ND   90.0  87.7 176.7  89.2                            
REMARK 620 6 CMO C 142   C   174.6  98.6  92.9  80.4  88.4                      
REMARK 620 7 CMO C 142   O   171.9 101.5  92.5  77.5  89.0   3.0                
REMARK 620 N                    1     2     3     4     5     6                 
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   85.2                                              
REMARK 620 3 HEM D 148   NB   91.6  87.8                                        
REMARK 620 4 HEM D 148   NC   94.2 179.3  92.6                                  
REMARK 620 5 HEM D 148   ND   88.7  90.6 178.3  89.0                            
REMARK 620 6 CMO D 147   C   173.4  88.5  86.2  92.2  93.2                      
REMARK 620 7 CMO D 147   O   177.9  96.9  88.1  83.7  91.6   8.6                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 D 901                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 902                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 C 903                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO A 142                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 143                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO B 147                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 148                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO C 142                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM C 143                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO D 147                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM D 148                 
DBREF  1MKO A    1   141  UNP    P69905   HBA_HUMAN        1    141             
DBREF  1MKO C    1   141  UNP    P69905   HBA_HUMAN        1    141             
DBREF  1MKO B    1   146  UNP    P68871   HBB_HUMAN        1    146             
DBREF  1MKO D    1   146  UNP    P68871   HBB_HUMAN        1    146             
SEQRES   1 A  141  VAL LEU SER PRO ALA ASP LYS THR ASN VAL LYS ALA ALA          
SEQRES   2 A  141  TRP GLY LYS VAL GLY ALA HIS ALA GLY 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 LYS LYS VAL ALA ASP ALA          
SEQRES   6 A  141  LEU THR ASN ALA VAL ALA HIS VAL ASP ASP MET PRO ASN          
SEQRES   7 A  141  ALA LEU SER ALA 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 CYS          
SEQRES   9 A  141  LEU LEU VAL THR LEU ALA ALA HIS LEU PRO ALA GLU PHE          
SEQRES  10 A  141  THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA          
SEQRES  11 A  141  SER VAL SER THR VAL LEU THR SER LYS TYR ARG                  
SEQRES   1 B  146  VAL HIS LEU THR PRO GLU GLU LYS SER ALA VAL THR ALA          
SEQRES   2 B  146  LEU TRP GLY LYS VAL ASN VAL ASP 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 GLU SER PHE GLY ASP LEU SER THR PRO ASP          
SEQRES   5 B  146  ALA VAL MET GLY ASN PRO LYS VAL LYS ALA HIS GLY LYS          
SEQRES   6 B  146  LYS VAL LEU GLY ALA PHE SER ASP GLY LEU ALA HIS LEU          
SEQRES   7 B  146  ASP ASN LEU LYS GLY THR PHE ALA THR 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 CYS VAL LEU ALA HIS HIS          
SEQRES  10 B  146  PHE GLY LYS GLU PHE THR PRO PRO VAL GLN ALA ALA 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                                                  
SEQRES   1 C  141  VAL LEU SER PRO ALA ASP LYS THR ASN VAL LYS ALA ALA          
SEQRES   2 C  141  TRP GLY LYS VAL GLY ALA HIS ALA GLY 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 LYS LYS VAL ALA ASP ALA          
SEQRES   6 C  141  LEU THR ASN ALA VAL ALA HIS VAL ASP ASP MET PRO ASN          
SEQRES   7 C  141  ALA LEU SER ALA 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 CYS          
SEQRES   9 C  141  LEU LEU VAL THR LEU ALA ALA HIS LEU PRO ALA GLU PHE          
SEQRES  10 C  141  THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA          
SEQRES  11 C  141  SER VAL SER THR VAL LEU THR SER LYS TYR ARG                  
SEQRES   1 D  146  VAL HIS LEU THR PRO GLU GLU LYS SER ALA VAL THR ALA          
SEQRES   2 D  146  LEU TRP GLY LYS VAL ASN VAL ASP GLU VAL GLY GLY GLU          
SEQRES   3 D  146  ALA LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN          
SEQRES   4 D  146  ARG PHE PHE GLU SER PHE GLY ASP LEU SER THR PRO ASP          
SEQRES   5 D  146  ALA VAL MET GLY ASN PRO LYS VAL LYS ALA HIS GLY LYS          
SEQRES   6 D  146  LYS VAL LEU GLY ALA PHE SER ASP GLY LEU ALA HIS LEU          
SEQRES   7 D  146  ASP ASN LEU LYS GLY THR PHE ALA THR LEU SER GLU LEU          
SEQRES   8 D  146  HIS CYS ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE ARG          
SEQRES   9 D  146  LEU LEU GLY ASN VAL LEU VAL CYS VAL LEU ALA HIS HIS          
SEQRES  10 D  146  PHE GLY LYS GLU PHE THR PRO PRO VAL GLN ALA ALA TYR          
SEQRES  11 D  146  GLN LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS          
SEQRES  12 D  146  LYS TYR HIS                                                  
HET    PO4  A 902       5                                                       
HET    CMO  A 142       2                                                       
HET    HEM  A 143      43                                                       
HET    CMO  B 147       2                                                       
HET    HEM  B 148      43                                                       
HET    PO4  C 903       5                                                       
HET    CMO  C 142       2                                                       
HET    HEM  C 143      43                                                       
HET    PO4  D 901       5                                                       
HET    CMO  D 147       2                                                       
HET    HEM  D 148      43                                                       
HETNAM     PO4 PHOSPHATE ION                                                    
HETNAM     CMO CARBON MONOXIDE                                                  
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETSYN     HEM HEME                                                             
FORMUL   5  PO4    3(O4 P 3-)                                                   
FORMUL   6  CMO    4(C O)                                                       
FORMUL   7  HEM    4(C34 H32 FE N4 O4)                                          
FORMUL  16  HOH   *325(H2 O)                                                    
HELIX    1   1 SER A    3  GLY A   18  1                                  16    
HELIX    2   2 HIS A   20  PHE A   36  1                                  17    
HELIX    3   3 PRO A   37  PHE A   43  5                                   7    
HELIX    4   4 SER A   52  ALA A   71  1                                  20    
HELIX    5   5 ASP A   75  LEU A   80  1                                   6    
HELIX    6   6 LEU A   80  HIS A   89  1                                  10    
HELIX    7   7 PRO A   95  LEU A  113  1                                  19    
HELIX    8   8 THR A  118  THR A  137  1                                  20    
HELIX    9   9 THR B    4  GLY B   16  1                                  13    
HELIX   10  10 GLU B   22  TYR B   35  1                                  14    
HELIX   11  11 PRO B   36  GLY B   46  5                                  11    
HELIX   12  12 THR B   50  ASN B   57  1                                   8    
HELIX   13  13 ASN B   57  HIS B   77  1                                  21    
HELIX   14  14 ASN B   80  PHE B   85  1                                   6    
HELIX   15  15 PHE B   85  LYS B   95  1                                  11    
HELIX   16  16 PRO B  100  GLY B  119  1                                  20    
HELIX   17  17 LYS B  120  PHE B  122  5                                   3    
HELIX   18  18 THR B  123  HIS B  143  1                                  21    
HELIX   19  19 LYS B  144  HIS B  146  5                                   3    
HELIX   20  20 SER C    3  GLY C   15  1                                  13    
HELIX   21  21 LYS C   16  ALA C   19  5                                   4    
HELIX   22  22 HIS C   20  PHE C   36  1                                  17    
HELIX   23  23 PRO C   37  PHE C   43  5                                   7    
HELIX   24  24 SER C   52  ALA C   71  1                                  20    
HELIX   25  25 HIS C   72  MET C   76  5                                   5    
HELIX   26  26 LEU C   80  ALA C   88  1                                   9    
HELIX   27  27 PRO C   95  LEU C  113  1                                  19    
HELIX   28  28 THR C  118  THR C  137  1                                  20    
HELIX   29  29 THR D    4  GLY D   16  1                                  13    
HELIX   30  30 GLU D   22  TYR D   35  1                                  14    
HELIX   31  31 PRO D   36  GLY D   46  5                                  11    
HELIX   32  32 THR D   50  ASN D   57  1                                   8    
HELIX   33  33 ASN D   57  HIS D   77  1                                  21    
HELIX   34  34 ASN D   80  ASP D   94  1                                  15    
HELIX   35  35 PRO D  100  GLY D  119  1                                  20    
HELIX   36  36 LYS D  120  PHE D  122  5                                   3    
HELIX   37  37 THR D  123  HIS D  143  1                                  21    
HELIX   38  38 LYS D  144  HIS D  146  5                                   3    
LINK         NE2 HIS A  87                FE   HEM A 143     1555   1555  2.03  
LINK         C   CMO A 142                FE   HEM A 143     1555   1555  1.91  
LINK         O   CMO A 142                FE   HEM A 143     1555   1555  3.14  
LINK         NE2 HIS B  92                FE   HEM B 148     1555   1555  2.08  
LINK         C   CMO B 147                FE   HEM B 148     1555   1555  1.80  
LINK         O   CMO B 147                FE   HEM B 148     1555   1555  3.02  
LINK         NE2 HIS C  87                FE   HEM C 143     1555   1555  2.01  
LINK         C   CMO C 142                FE   HEM C 143     1555   1555  1.83  
LINK         O   CMO C 142                FE   HEM C 143     1555   1555  3.05  
LINK         NE2 HIS D  92                FE   HEM D 148     1555   1555  2.07  
LINK         C   CMO D 147                FE   HEM D 148     1555   1555  1.76  
LINK         O   CMO D 147                FE   HEM D 148     1555   1555  2.91  
SITE     1 AC1  5 LYS B  82  HIS B 143  HIS B 146  HIS D 143                    
SITE     2 AC1  5 HIS D 146                                                     
SITE     1 AC2  8 HIS A  89  ARG A  92  LYS A 139  HOH A 999                    
SITE     2 AC2  8 HOH A1004  HIS C  72  SER D  49  HOH D 902                    
SITE     1 AC3  5 PRO B  36  GLN B  39  HIS C  89  ARG C  92                    
SITE     2 AC3  5 LYS C 139                                                     
SITE     1 AC4  4 LEU A  29  HIS A  58  VAL A  62  HEM A 143                    
SITE     1 AC5 20 TYR A  42  PHE A  43  PHE A  46  HIS A  58                    
SITE     2 AC5 20 LYS A  61  VAL A  62  LEU A  83  HIS A  87                    
SITE     3 AC5 20 LEU A  91  VAL A  93  ASN A  97  PHE A  98                    
SITE     4 AC5 20 LEU A 101  LEU A 136  CMO A 142  HOH A 917                    
SITE     5 AC5 20 HOH A 947  HOH A 985  HOH A 991  HOH A 992                    
SITE     1 AC6  3 HIS B  63  VAL B  67  HEM B 148                               
SITE     1 AC7 17 THR B  38  PHE B  41  PHE B  42  HIS B  63                    
SITE     2 AC7 17 LYS B  66  ALA B  70  PHE B  71  HIS B  92                    
SITE     3 AC7 17 LEU B  96  VAL B  98  ASN B 102  PHE B 103                    
SITE     4 AC7 17 LEU B 106  LEU B 141  CMO B 147  HOH B 174                    
SITE     5 AC7 17 PRO D   5                                                     
SITE     1 AC8  4 LEU C  29  HIS C  58  VAL C  62  HEM C 143                    
SITE     1 AC9 20 LYS C   7  MET C  32  TYR C  42  PHE C  43                    
SITE     2 AC9 20 PHE C  46  HIS C  58  LYS C  61  ALA C  65                    
SITE     3 AC9 20 LEU C  83  LEU C  86  HIS C  87  LEU C  91                    
SITE     4 AC9 20 VAL C  93  ASN C  97  PHE C  98  LEU C 101                    
SITE     5 AC9 20 LEU C 136  CMO C 142  HOH C 931  HOH C 946                    
SITE     1 BC1  3 HIS D  63  VAL D  67  HEM D 148                               
SITE     1 BC2 16 LYS B   8  THR D  38  PHE D  41  PHE D  42                    
SITE     2 BC2 16 HIS D  63  LYS D  66  VAL D  67  PHE D  71                    
SITE     3 BC2 16 HIS D  92  LEU D  96  ASN D 102  PHE D 103                    
SITE     4 BC2 16 LEU D 106  LEU D 141  CMO D 147  HOH D 922                    
CRYST1   65.530  154.570   55.270  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      0.015260  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.006470  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.018093        0.00000