HEADER    OXYGEN STORAGE, OXYGEN TRANSPORT        09-JAN-09   3FS4              
TITLE     CRYSTAL STRUCTURE DETERMINATION OF OSTRICH HEMOGLOBIN AT 2.2 ANGSTROM 
TITLE    2 RESOLUTION                                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HEMOGLOBIN SUBUNIT ALPHA-A;                                
COMPND   3 CHAIN: A, C;                                                         
COMPND   4 SYNONYM: HEMOGLOBIN ALPHA-A CHAIN, ALPHA-A-GLOBIN;                   
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: HEMOGLOBIN SUBUNIT BETA;                                   
COMPND   7 CHAIN: B, D;                                                         
COMPND   8 SYNONYM: HEMOGLOBIN BETA CHAIN, BETA-GLOBIN                          
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STRUTHIO CAMELUS;                               
SOURCE   3 ORGANISM_COMMON: OSTRICH;                                            
SOURCE   4 ORGANISM_TAXID: 8801;                                                
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: STRUTHIO CAMELUS;                               
SOURCE   7 ORGANISM_COMMON: OSTRICH;                                            
SOURCE   8 ORGANISM_TAXID: 8801                                                 
KEYWDS    HEMOGLOBIN, AVIAN SPECIES, OSTRICH, QUATERNARY STRUCTURE, HEME, IRON, 
KEYWDS   2 METAL-BINDING, OXYGEN TRANSPORT, POLYMORPHISM, TRANSPORT, OXYGEN     
KEYWDS   3 STORAGE                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.S.SUNDARESAN,P.RAMESH,K.SIVAKUMAR,M.N.PONNUSWAMY                    
REVDAT   4   01-NOV-23 3FS4    1       REMARK                                   
REVDAT   3   19-MAY-21 3FS4    1       JRNL                                     
REVDAT   2   12-MAY-21 3FS4    1       JRNL   REMARK LINK                       
REVDAT   1   31-MAR-09 3FS4    0                                                
JRNL        AUTH   P.RAMESH,S.S.SUNDARESAN,N.SHOBANA,T.VINUCHAKKARAVARTHY,      
JRNL        AUTH 2 K.SIVAKUMAR,S.YASIEN,M.N.G.PONNUSWAMY                        
JRNL        TITL   STRUCTURAL STUDIES OF HEMOGLOBIN FROM TWO FLIGHTLESS BIRDS,  
JRNL        TITL 2 OSTRICH AND TURKEY: INSIGHTS INTO THEIR DIFFERING            
JRNL        TITL 3 OXYGEN-BINDING PROPERTIES.                                   
JRNL        REF    ACTA CRYSTALLOGR D STRUCT     V.  77   690 2021              
JRNL        REF  2 BIOL                                                         
JRNL        REFN                   ISSN 2059-7983                               
JRNL        PMID   33950023                                                     
JRNL        DOI    10.1107/S2059798321003417                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.22 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0019                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.22                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 27.62                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 31682                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.218                           
REMARK   3   R VALUE            (WORKING SET) : 0.216                           
REMARK   3   FREE R VALUE                     : 0.256                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1668                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.22                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.28                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2146                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 92.21                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2640                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 116                          
REMARK   3   BIN FREE R VALUE                    : 0.3220                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4485                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 180                                     
REMARK   3   SOLVENT ATOMS            : 270                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 44.54                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.01000                                              
REMARK   3    B22 (A**2) : 0.00000                                              
REMARK   3    B33 (A**2) : -0.01000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.316         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.230         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.149         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.774         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.948                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.924                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  4797 ; 0.016 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  6558 ; 1.575 ; 2.055       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   570 ; 5.423 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   194 ;37.378 ;23.918       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   776 ;18.652 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    18 ;18.945 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   715 ; 0.113 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3596 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  2596 ; 0.224 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  3306 ; 0.300 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   285 ; 0.172 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     4 ; 0.200 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    27 ; 0.142 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    12 ; 0.737 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  2932 ; 1.057 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  4595 ; 1.456 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2127 ; 2.680 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1955 ; 3.627 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 3FS4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 13-JAN-09.                  
REMARK 100 THE DEPOSITION ID IS D_1000050973.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-DEC-08                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.20                               
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          : BRUKER AXS MICROSTAR               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.54159                            
REMARK 200  MONOCHROMATOR                  : NIL                                
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : BRUKER SMART 6000                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : AUTOMAR                            
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 33356                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.220                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 29.600                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : 3.910                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.06300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 6.5000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.22                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.30                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.67                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.23100                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.700                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASES                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1FAW                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 53.22                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.63                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 3350, 50MM NA PHOSPHATE          
REMARK 280  BUFFER, PH 7.20, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K    
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       40.39700            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       50.72500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       40.78650            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       50.72500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       40.39700            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       40.78650            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 11930 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 23270 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -103.0 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: 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    THR B 119     -136.72     51.54                                   
REMARK 500    ASP C  75       67.00   -154.24                                   
REMARK 500    CYS D  93      -69.15    -90.10                                   
REMARK 500    THR D 119     -124.56     48.41                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 ILE A   17     SER A   18                  -31.35                    
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 150  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  87   NE2                                                    
REMARK 620 2 HEM A 150   NA   80.2                                              
REMARK 620 3 HEM A 150   NB   91.1  87.6                                        
REMARK 620 4 HEM A 150   NC   98.0 173.9  86.7                                  
REMARK 620 5 HEM A 150   ND   89.5  88.0 175.3  97.8                            
REMARK 620 6 OXY A 151   O1  168.3  89.0  83.9  92.3  94.6                      
REMARK 620 7 OXY A 151   O2  169.5 107.5  96.4  75.1  83.7  21.9                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM B 150  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B  92   NE2                                                    
REMARK 620 2 HEM B 150   NA   95.4                                              
REMARK 620 3 HEM B 150   NB   90.5  83.5                                        
REMARK 620 4 HEM B 150   NC   77.6 172.3  93.4                                  
REMARK 620 5 HEM B 150   ND   82.1  95.2 172.4  86.9                            
REMARK 620 6 OXY B 151   O1  173.1  90.0  94.3  97.3  93.1                      
REMARK 620 7 OXY B 151   O2  153.0 111.1  97.5  76.2  90.0  21.1                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM C 150  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS C  87   NE2                                                    
REMARK 620 2 HEM C 150   NA   93.7                                              
REMARK 620 3 HEM C 150   NB   85.3  83.6                                        
REMARK 620 4 HEM C 150   NC   84.6 176.2  92.9                                  
REMARK 620 5 HEM C 150   ND   95.0  95.0 178.6  88.5                            
REMARK 620 6 OXY C 151   O1  178.2  87.6  93.5  94.0  86.1                      
REMARK 620 7 OXY C 151   O2  151.6 114.7  96.8  67.0  83.5  27.1                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM D 150  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS D  92   NE2                                                    
REMARK 620 2 HEM D 150   NA   87.1                                              
REMARK 620 3 HEM D 150   NB   92.4  83.6                                        
REMARK 620 4 HEM D 150   NC   95.0 175.4  92.3                                  
REMARK 620 5 HEM D 150   ND   88.8  93.9 177.2  90.2                            
REMARK 620 6 OXY D 151   O1  164.3  84.6  99.9  94.2  78.5                      
REMARK 620 7 OXY D 151   O2  163.4 109.3  87.5  68.5  92.1  29.0                
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 HEM A 150                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY A 151                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 150                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY B 151                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM C 150                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY C 151                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM D 150                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY D 151                 
DBREF  3FS4 A    1   141  UNP    P01981   HBA_STRCA        1    141             
DBREF  3FS4 B    1   146  UNP    P02123   HBB_STRCA        1    146             
DBREF  3FS4 C    1   141  UNP    P01981   HBA_STRCA        1    141             
DBREF  3FS4 D    1   146  UNP    P02123   HBB_STRCA        1    146             
SEQRES   1 A  141  VAL LEU SER GLY THR ASP LYS THR ASN VAL LYS GLY ILE          
SEQRES   2 A  141  PHE SER LYS ILE SER SER HIS ALA GLU GLU TYR GLY ALA          
SEQRES   3 A  141  GLU THR LEU GLU ARG MET PHE ILE THR TYR PRO GLN THR          
SEQRES   4 A  141  LYS THR TYR PHE PRO HIS PHE ASP LEU HIS HIS GLY SER          
SEQRES   5 A  141  ALA GLN ILE LYS ALA HIS GLY LYS LYS VAL ALA ASN ALA          
SEQRES   6 A  141  LEU ILE GLU ALA VAL ASN HIS ILE ASP ASP ILE SER GLY          
SEQRES   7 A  141  ALA LEU SER LYS LEU SER ASP LEU HIS ALA GLN LYS LEU          
SEQRES   8 A  141  ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU GLY GLN CYS          
SEQRES   9 A  141  PHE LEU VAL VAL VAL ALA ILE HIS HIS PRO SER ALA LEU          
SEQRES  10 A  141  THR PRO GLU VAL HIS ALA SER LEU ASP LYS PHE LEU CYS          
SEQRES  11 A  141  ALA VAL GLY ALA VAL LEU THR ALA LYS TYR ARG                  
SEQRES   1 B  146  VAL GLN TRP SER ALA GLU GLU LYS GLN LEU ILE SER GLY          
SEQRES   2 B  146  LEU TRP GLY LYS VAL ASN VAL ALA ASP CYS GLY ALA GLU          
SEQRES   3 B  146  ALA LEU ALA ARG LEU LEU ILE VAL TYR PRO TRP THR GLN          
SEQRES   4 B  146  ARG PHE PHE ALA SER PHE GLY ASN LEU SER SER PRO THR          
SEQRES   5 B  146  ALA ILE LEU GLY ASN PRO MET VAL ARG ALA HIS GLY LYS          
SEQRES   6 B  146  LYS VAL LEU THR SER PHE GLY ASP ALA VAL LYS ASN LEU          
SEQRES   7 B  146  ASP ASN ILE LYS ASN THR PHE ALA GLN 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 ASP ILE LEU ILE ILE VAL LEU ALA ALA HIS          
SEQRES  10 B  146  PHE THR LYS GLU PHE THR PRO GLU CYS GLN ALA ALA TRP          
SEQRES  11 B  146  GLN LYS LEU VAL ARG VAL VAL ALA HIS ALA LEU ALA ARG          
SEQRES  12 B  146  LYS TYR HIS                                                  
SEQRES   1 C  141  VAL LEU SER GLY THR ASP LYS THR ASN VAL LYS GLY ILE          
SEQRES   2 C  141  PHE SER LYS ILE SER SER HIS ALA GLU GLU TYR GLY ALA          
SEQRES   3 C  141  GLU THR LEU GLU ARG MET PHE ILE THR TYR PRO GLN THR          
SEQRES   4 C  141  LYS THR TYR PHE PRO HIS PHE ASP LEU HIS HIS GLY SER          
SEQRES   5 C  141  ALA GLN ILE LYS ALA HIS GLY LYS LYS VAL ALA ASN ALA          
SEQRES   6 C  141  LEU ILE GLU ALA VAL ASN HIS ILE ASP ASP ILE SER GLY          
SEQRES   7 C  141  ALA LEU SER LYS LEU SER ASP LEU HIS ALA GLN LYS LEU          
SEQRES   8 C  141  ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU GLY GLN CYS          
SEQRES   9 C  141  PHE LEU VAL VAL VAL ALA ILE HIS HIS PRO SER ALA LEU          
SEQRES  10 C  141  THR PRO GLU VAL HIS ALA SER LEU ASP LYS PHE LEU CYS          
SEQRES  11 C  141  ALA VAL GLY ALA VAL LEU THR ALA LYS TYR ARG                  
SEQRES   1 D  146  VAL GLN TRP SER ALA GLU GLU LYS GLN LEU ILE SER GLY          
SEQRES   2 D  146  LEU TRP GLY LYS VAL ASN VAL ALA ASP CYS GLY ALA GLU          
SEQRES   3 D  146  ALA LEU ALA ARG LEU LEU ILE VAL TYR PRO TRP THR GLN          
SEQRES   4 D  146  ARG PHE PHE ALA SER PHE GLY ASN LEU SER SER PRO THR          
SEQRES   5 D  146  ALA ILE LEU GLY ASN PRO MET VAL ARG ALA HIS GLY LYS          
SEQRES   6 D  146  LYS VAL LEU THR SER PHE GLY ASP ALA VAL LYS ASN LEU          
SEQRES   7 D  146  ASP ASN ILE LYS ASN THR PHE ALA GLN 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 ASP ILE LEU ILE ILE VAL LEU ALA ALA HIS          
SEQRES  10 D  146  PHE THR LYS GLU PHE THR PRO GLU CYS GLN ALA ALA TRP          
SEQRES  11 D  146  GLN LYS LEU VAL ARG VAL VAL ALA HIS ALA LEU ALA ARG          
SEQRES  12 D  146  LYS TYR HIS                                                  
HET    HEM  A 150      43                                                       
HET    OXY  A 151       2                                                       
HET    HEM  B 150      43                                                       
HET    OXY  B 151       2                                                       
HET    HEM  C 150      43                                                       
HET    OXY  C 151       2                                                       
HET    HEM  D 150      43                                                       
HET    OXY  D 151       2                                                       
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETNAM     OXY OXYGEN MOLECULE                                                  
HETSYN     HEM HEME                                                             
FORMUL   5  HEM    4(C34 H32 FE N4 O4)                                          
FORMUL   6  OXY    4(O2)                                                        
FORMUL  13  HOH   *270(H2 O)                                                    
HELIX    1   1 SER A    3  SER A   18  1                                  16    
HELIX    2   2 HIS A   20  TYR A   36  1                                  17    
HELIX    3   3 PRO A   37  PHE A   43  5                                   7    
HELIX    4   4 SER A   52  HIS A   72  1                                  21    
HELIX    5   5 ASP A   75  SER A   81  1                                   7    
HELIX    6   6 SER A   81  ALA A   88  1                                   8    
HELIX    7   7 PRO A   95  HIS A  113  1                                  19    
HELIX    8   8 THR A  118  THR A  137  1                                  20    
HELIX    9   9 ALA A  138  ARG A  141  5                                   4    
HELIX   10  10 SER B    4  GLY B   16  1                                  13    
HELIX   11  11 ASN B   19  TYR B   35  1                                  17    
HELIX   12  12 PRO B   36  GLY B   46  5                                  11    
HELIX   13  13 SER B   50  ASN B   57  1                                   8    
HELIX   14  14 ASN B   57  ASN B   77  1                                  21    
HELIX   15  15 ASN B   80  PHE B   85  1                                   6    
HELIX   16  16 PHE B   85  ASP B   94  1                                  10    
HELIX   17  17 PRO B  100  THR B  119  1                                  20    
HELIX   18  18 LYS B  120  PHE B  122  5                                   3    
HELIX   19  19 THR B  123  ARG B  143  1                                  21    
HELIX   20  20 LYS B  144  HIS B  146  5                                   3    
HELIX   21  21 SER C    3  SER C   18  1                                  16    
HELIX   22  22 HIS C   20  TYR C   36  1                                  17    
HELIX   23  23 PRO C   37  PHE C   43  5                                   7    
HELIX   24  24 SER C   52  HIS C   72  1                                  21    
HELIX   25  25 ASP C   75  GLN C   89  1                                  15    
HELIX   26  26 VAL C   96  HIS C  113  1                                  18    
HELIX   27  27 THR C  118  THR C  137  1                                  20    
HELIX   28  28 ALA C  138  ARG C  141  5                                   4    
HELIX   29  29 SER D    4  GLY D   16  1                                  13    
HELIX   30  30 ASN D   19  TYR D   35  1                                  17    
HELIX   31  31 PRO D   36  GLY D   46  5                                  11    
HELIX   32  32 SER D   50  ASN D   57  1                                   8    
HELIX   33  33 ASN D   57  ASN D   77  1                                  21    
HELIX   34  34 ASN D   80  PHE D   85  1                                   6    
HELIX   35  35 PHE D   85  LYS D   95  1                                  11    
HELIX   36  36 PRO D  100  THR D  119  1                                  20    
HELIX   37  37 LYS D  120  PHE D  122  5                                   3    
HELIX   38  38 THR D  123  ALA D  142  1                                  20    
HELIX   39  39 ARG D  143  HIS D  146  5                                   4    
LINK         NE2 HIS A  87                FE   HEM A 150     1555   1555  2.12  
LINK        FE   HEM A 150                 O1  OXY A 151     1555   1555  1.66  
LINK        FE   HEM A 150                 O2  OXY A 151     1555   1555  2.56  
LINK         NE2 HIS B  92                FE   HEM B 150     1555   1555  2.17  
LINK        FE   HEM B 150                 O1  OXY B 151     1555   1555  1.73  
LINK        FE   HEM B 150                 O2  OXY B 151     1555   1555  2.65  
LINK         NE2 HIS C  87                FE   HEM C 150     1555   1555  1.96  
LINK        FE   HEM C 150                 O1  OXY C 151     1555   1555  1.83  
LINK        FE   HEM C 150                 O2  OXY C 151     1555   1555  2.51  
LINK         NE2 HIS D  92                FE   HEM D 150     1555   1555  2.12  
LINK        FE   HEM D 150                 O1  OXY D 151     1555   1555  2.03  
LINK        FE   HEM D 150                 O2  OXY D 151     1555   1555  2.46  
SITE     1 AC1 17 TYR A  42  PHE A  43  HIS A  45  HIS A  58                    
SITE     2 AC1 17 LYS A  61  ALA A  65  LEU A  86  HIS A  87                    
SITE     3 AC1 17 LEU A  91  VAL A  93  ASN A  97  PHE A  98                    
SITE     4 AC1 17 VAL A 132  LEU A 136  OXY A 151  HOH A 271                    
SITE     5 AC1 17 HOH A 307                                                     
SITE     1 AC2  3 HIS A  58  VAL A  62  HEM A 150                               
SITE     1 AC3 15 THR B  38  PHE B  41  PHE B  42  HIS B  63                    
SITE     2 AC3 15 SER B  70  PHE B  71  LEU B  88  HIS B  92                    
SITE     3 AC3 15 LEU B  96  ASN B 102  PHE B 103  LEU B 106                    
SITE     4 AC3 15 LEU B 141  OXY B 151  LYS D 120                               
SITE     1 AC4  3 HIS B  63  VAL B  67  HEM B 150                               
SITE     1 AC5 16 TYR C  42  PHE C  43  HIS C  45  HIS C  58                    
SITE     2 AC5 16 ALA C  65  LEU C  86  HIS C  87  LEU C  91                    
SITE     3 AC5 16 VAL C  93  PHE C  98  VAL C 132  LEU C 136                    
SITE     4 AC5 16 HOH C 149  OXY C 151  HOH C 157  HOH C 192                    
SITE     1 AC6  3 HIS C  58  VAL C  62  HEM C 150                               
SITE     1 AC7 16 LYS B 120  PHE D  41  PHE D  42  HIS D  63                    
SITE     2 AC7 16 SER D  70  PHE D  71  LEU D  91  HIS D  92                    
SITE     3 AC7 16 LEU D  96  VAL D  98  ASN D 102  PHE D 103                    
SITE     4 AC7 16 LEU D 106  LEU D 141  OXY D 151  HOH D 401                    
SITE     1 AC8  3 HIS D  63  VAL D  67  HEM D 150                               
CRYST1   80.794   81.573  101.450  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      0.012377  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.012259  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009857        0.00000