PDB Short entry for 1IBE
HEADER    OXYGEN TRANSPORT                        25-SEP-96   1IBE              
TITLE     DEOXY-HAEMOGLOBIN TRAPPED IN THE HIGH-AFFINITY (R) STATE              
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HEMOGLOBIN (DEOXY);                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 MOL_ID: 2;                                                           
COMPND   5 MOLECULE: HEMOGLOBIN (DEOXY);                                        
COMPND   6 CHAIN: B                                                             
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: EQUUS CABALLUS;                                 
SOURCE   3 ORGANISM_COMMON: HORSE;                                              
SOURCE   4 ORGANISM_TAXID: 9796;                                                
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: EQUUS CABALLUS;                                 
SOURCE   7 ORGANISM_COMMON: HORSE;                                              
SOURCE   8 ORGANISM_TAXID: 9796                                                 
KEYWDS    HEME, OXYGEN TRANSPORT, RESPIRATORY PROTEIN, ERYTHROCYTE              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.WILSON,K.PHILLIPS,B.LUISI                                           
REVDAT   3   21-MAR-18 1IBE    1       REMARK                                   
REVDAT   2   24-FEB-09 1IBE    1       VERSN                                    
REVDAT   1   23-DEC-96 1IBE    0                                                
JRNL        AUTH   J.WILSON,K.PHILLIPS,B.LUISI                                  
JRNL        TITL   THE CRYSTAL STRUCTURE OF HORSE DEOXYHAEMOGLOBIN TRAPPED IN   
JRNL        TITL 2 THE HIGH-AFFINITY (R) STATE.                                 
JRNL        REF    J.MOL.BIOL.                   V. 264   743 1996              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   8980683                                                      
JRNL        DOI    10.1006/JMBI.1996.0674                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 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) : 1.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : NULL                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 1.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 144335                         
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) : 0.179                           
REMARK   3   FREE R VALUE                     : 0.230                           
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            : 2202                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 86                                      
REMARK   3   SOLVENT ATOMS            : 187                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 29.96                          
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) : 0.20                            
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) : 0.024 ; 0.025               
REMARK   3    ANGLE DISTANCE                  (A) : 0.044 ; 0.035               
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.051 ; 0.050               
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : 0.018 ; 0.025               
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.130 ; 0.120               
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : 0.190 ; 0.300               
REMARK   3    MULTIPLE TORSION                (A) : 0.290 ; 0.300               
REMARK   3    H-BOND (X...Y)                  (A) : 0.190 ; 0.300               
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) : 3.060 ; 3.000               
REMARK   3    STAGGERED                 (DEGREES) : 20.440; 20.000              
REMARK   3    TRANSVERSE                (DEGREES) : 30.640; 30.000              
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND               (A**2) : 3.337 ; 4.000               
REMARK   3   MAIN-CHAIN ANGLE              (A**2) : 4.532 ; 6.000               
REMARK   3   SIDE-CHAIN BOND               (A**2) : 6.745 ; 8.000               
REMARK   3   SIDE-CHAIN ANGLE              (A**2) : 9.006 ; 10.000              
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1IBE 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_1000174096.                                   
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) : N                                  
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : XUONG-HAMLIN MULTIWIRE             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : UCSD                               
REMARK 200  DATA SCALING SOFTWARE          : UCSD                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 32227                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.1                               
REMARK 200  DATA REDUNDANCY                : 5.000                              
REMARK 200  R MERGE                    (I) : 0.05900                            
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: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 58.00                                     
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   X+1/2,Y+1/2,Z                                           
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        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       54.09000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       31.59000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       54.09000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       31.59000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC                        
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       88.53137            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       50.92060            
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   O    ALA B   140     ND1  HIS B   143              2.07            
REMARK 500   O    LEU A    73     O    HOH A   244              2.17            
REMARK 500   O    ALA B   142     ND1  HIS B   146              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    SER A 133   CB    SER A 133   OG      0.079                       
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    LEU A   2   CA  -  C   -  O   ANGL. DEV. =  13.3 DEGREES          
REMARK 500    ASP A   6   CB  -  CG  -  OD2 ANGL. DEV. =  -6.5 DEGREES          
REMARK 500    GLU A  30   OE1 -  CD  -  OE2 ANGL. DEV. =   9.5 DEGREES          
REMARK 500    GLU A  30   CG  -  CD  -  OE2 ANGL. DEV. = -12.6 DEGREES          
REMARK 500    ARG A  31   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.1 DEGREES          
REMARK 500    THR A  39   CA  -  CB  -  CG2 ANGL. DEV. =  -8.8 DEGREES          
REMARK 500    THR A  41   CA  -  CB  -  CG2 ANGL. DEV. =   8.4 DEGREES          
REMARK 500    ASP A  64   CB  -  CG  -  OD1 ANGL. DEV. =   6.7 DEGREES          
REMARK 500    ASP A  75   CB  -  CG  -  OD2 ANGL. DEV. =  -8.3 DEGREES          
REMARK 500    ASP A  82   CB  -  CG  -  OD1 ANGL. DEV. =   7.2 DEGREES          
REMARK 500    ARG A  92   CD  -  NE  -  CZ  ANGL. DEV. =   9.3 DEGREES          
REMARK 500    ARG A  92   NE  -  CZ  -  NH1 ANGL. DEV. =   8.0 DEGREES          
REMARK 500    ARG A  92   NE  -  CZ  -  NH2 ANGL. DEV. =  -7.6 DEGREES          
REMARK 500    ASP A 126   CB  -  CG  -  OD1 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500    GLN B   2   C   -  N   -  CA  ANGL. DEV. =  15.1 DEGREES          
REMARK 500    GLU B   7   CB  -  CG  -  CD  ANGL. DEV. = -17.2 DEGREES          
REMARK 500    ASP B  16   CB  -  CG  -  OD2 ANGL. DEV. =  -5.6 DEGREES          
REMARK 500    GLU B  22   CA  -  CB  -  CG  ANGL. DEV. =  20.8 DEGREES          
REMARK 500    TYR B  35   CZ  -  CE2 -  CD2 ANGL. DEV. =  -5.6 DEGREES          
REMARK 500    PHE B  41   CB  -  CG  -  CD2 ANGL. DEV. =   4.8 DEGREES          
REMARK 500    PHE B  41   CB  -  CG  -  CD1 ANGL. DEV. =  -4.9 DEGREES          
REMARK 500    PHE B  45   CB  -  CG  -  CD1 ANGL. DEV. =   5.6 DEGREES          
REMARK 500    LYS B  66   CA  -  CB  -  CG  ANGL. DEV. =  16.5 DEGREES          
REMARK 500    ASN B  80   N   -  CA  -  CB  ANGL. DEV. = -11.0 DEGREES          
REMARK 500    ASP B  94   CB  -  CG  -  OD1 ANGL. DEV. =   6.8 DEGREES          
REMARK 500    ARG B 104   NE  -  CZ  -  NH1 ANGL. DEV. =   4.7 DEGREES          
REMARK 500    TYR B 130   CB  -  CG  -  CD1 ANGL. DEV. =  -4.5 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    TYR A 140     -100.06    -79.13                                   
REMARK 500    GLN B   2       75.75    148.73                                   
REMARK 500    ASN B  80       56.70   -164.13                                   
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   95.5                                              
REMARK 620 3 HEM A 143   NB  100.9  85.9                                        
REMARK 620 4 HEM A 143   NC  105.5 158.9  88.9                                  
REMARK 620 5 HEM A 143   ND  103.4  88.7 155.6  87.7                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM B 147  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B  92   NE2                                                    
REMARK 620 2 HEM B 147   NA   89.1                                              
REMARK 620 3 HEM B 147   NB   97.2  87.3                                        
REMARK 620 4 HEM B 147   NC  109.1 161.6  88.0                                  
REMARK 620 5 HEM B 147   ND  102.8  90.3 159.7  88.0                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
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 147                 
DBREF  1IBE A    1   141  UNP    P01958   HBA_HORSE        1    141             
DBREF  1IBE B    1   146  UNP    P02062   HBB_HORSE        1    146             
SEQADV 1IBE PHE A   24  UNP  P01958    TYR    24 VARIANT                        
SEQADV 1IBE ASP A   82  UNP  P01958    ASN    82 CONFLICT                       
SEQADV 1IBE 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 PHE 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 143      43                                                       
HET    HEM  B 147      43                                                       
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETSYN     HEM HEME                                                             
FORMUL   3  HEM    2(C34 H32 FE N4 O4)                                          
FORMUL   5  HOH   *187(H2 O)                                                    
HELIX    1   1 ALA A    4  VAL A   17  1                                  14    
HELIX    2   2 ALA A   21  GLY A   35  1                                  15    
HELIX    3   3 PRO A   37  TYR A   42  5                                   6    
HELIX    4   4 ALA A   53  GLY A   71  1                                  19    
HELIX    5   5 LEU A   80  ALA A   88  1                                   9    
HELIX    6   6 PRO A   95  HIS A  112  5                                  18    
HELIX    7   7 PRO A  119  THR A  137  1                                  19    
HELIX    8   8 GLY B    5  LYS B   17  1                                  13    
HELIX    9   9 GLU B   20  VAL B   34  1                                  15    
HELIX   10  10 PRO B   36  PHE B   41  5                                   6    
HELIX   11  11 PRO B   51  GLY B   56  1                                   6    
HELIX   12  12 PRO B   58  HIS B   77  1                                  20    
HELIX   13  13 PHE B   85  CYS B   93  1                                   9    
HELIX   14  14 ASP B   99  HIS B  117  5                                  19    
HELIX   15  15 PRO B  124  ALA B  142  1                                  19    
LINK        FE   HEM A 143                 NE2 HIS A  87     1555   1555  2.19  
LINK        FE   HEM B 147                 NE2 HIS B  92     1555   1555  2.28  
SITE     1 AC1 17 TYR A  42  PHE A  43  HIS A  45  HIS A  58                    
SITE     2 AC1 17 LYS A  61  HIS A  87  LEU A  91  VAL A  93                    
SITE     3 AC1 17 ASN A  97  PHE A  98  LEU A 101  LEU A 136                    
SITE     4 AC1 17 HOH A 145  HOH A 171  HOH A 181  HOH A 225                    
SITE     5 AC1 17 HOH A 229                                                     
SITE     1 AC2 14 PHE B  41  PHE B  42  PHE B  45  HIS B  63                    
SITE     2 AC2 14 LYS B  66  SER B  70  LEU B  91  HIS B  92                    
SITE     3 AC2 14 LEU B  96  VAL B  98  ASN B 102  PHE B 103                    
SITE     4 AC2 14 LEU B 106  LEU B 141                                          
CRYST1  108.180   63.180   54.580  90.00 111.10  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      0.009244  0.000000  0.003567        0.00000                         
SCALE2      0.000000  0.015828  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.019638        0.00000