HEADER    OXYGEN STORAGE                          14-JUN-93   2FAL              
TITLE     X-RAY CRYSTAL STRUCTURE OF FERRIC APLYSIA LIMACINA MYOGLOBIN IN       
TITLE    2 DIFFERENT LIGANDED STATES                                            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: MYOGLOBIN;                                                 
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: APLYSIA LIMACINA;                               
SOURCE   3 ORGANISM_COMMON: SLUG SEA HARE;                                      
SOURCE   4 ORGANISM_TAXID: 6502                                                 
KEYWDS    OXYGEN STORAGE                                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    E.CONTI,C.MOSER,M.RIZZI,A.MATTEVI,C.LIONETTI,A.CODA,P.ASCENZI,        
AUTHOR   2 M.BRUNORI,M.BOLOGNESI                                                
REVDAT   5   30-OCT-24 2FAL    1       REMARK                                   
REVDAT   4   05-JUN-24 2FAL    1       REMARK SEQADV LINK                       
REVDAT   3   24-FEB-09 2FAL    1       VERSN                                    
REVDAT   2   31-JAN-94 2FAL    1       REMARK                                   
REVDAT   1   31-OCT-93 2FAL    0                                                
JRNL        AUTH   E.CONTI,C.MOSER,M.RIZZI,A.MATTEVI,C.LIONETTI,A.CODA,         
JRNL        AUTH 2 P.ASCENZI,M.BRUNORI,M.BOLOGNESI                              
JRNL        TITL   X-RAY CRYSTAL STRUCTURE OF FERRIC APLYSIA LIMACINA MYOGLOBIN 
JRNL        TITL 2 IN DIFFERENT LIGANDED STATES.                                
JRNL        REF    J.MOL.BIOL.                   V. 233   498 1993              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   8411158                                                      
JRNL        DOI    10.1006/JMBI.1993.1527                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   C.LIONETTI,M.G.GUANZIROLI,F.FRIGERIO,P.ASCENZI,M.BOLOGNESI   
REMARK   1  TITL   X-RAY CRYSTAL STRUCTURE OF THE FERRIC SPERM WHALE MYOGLOBIN: 
REMARK   1  TITL 2 IMIDAZOLE COMPLEX AT 2.0 ANGSTROMS RESOLUTION                
REMARK   1  REF    J.MOL.BIOL.                   V. 217   409 1991              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   M.BOLOGNESI,F.FRIGERIO,C.LIONETTI,M.RIZZI,P.ASCENZI,         
REMARK   1  AUTH 2 M.BRUNORI                                                    
REMARK   1  TITL   APLYSIA LIMACINA MYOGLOBIN: MOLECULAR BASES FOR LIGAND       
REMARK   1  TITL 2 BINDING                                                      
REMARK   1  EDIT   S.N.VINOGRADOV, O.H.KAPP                                     
REMARK   1  REF    STRUCTURE AND FUNCTION OF              161 1991              
REMARK   1  REF  2 INVERTEBRATE OXYGEN CARRIERS                                 
REMARK   1  PUBL   SPRINGER VERLAG, NEW YORK                                    
REMARK   1  REFN                                                                
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   A.MATTEVI,G.GATTI,A.CODA,M.RIZZI,P.ASCENZI,M.BRUNORI,        
REMARK   1  AUTH 2 M.BOLOGNESI                                                  
REMARK   1  TITL   BINDING MODE OF AZIDE TO FERRIC APLYSIA LIMACINA MYOGLOBIN:  
REMARK   1  TITL 2 CRYSTALLOGRAPHIC ANALYSIS AT 1.9 ANGSTROMS RESOLUTION        
REMARK   1  REF    J.MOL.RECOG.                  V.   4     1 1991              
REMARK   1  REFN                   ISSN 0952-3499                               
REMARK   1 REFERENCE 4                                                          
REMARK   1  AUTH   M.BOLOGNESI,A.CODA,F.FRIGERIO,G.GATTI,P.ASCENZI,M.BRUNORI    
REMARK   1  TITL   X-RAY CRYSTAL STRUCTURE OF THE FLUORIDE DERIVATIVE OF        
REMARK   1  TITL 2 APLYSIA LIMACINA MYOGLOBIN AT 2.0 ANGSTROMS RESOLUTION:      
REMARK   1  TITL 3 STABILIZATION OF THE FLUORIDE BY HYDROGEN BONDING TO ARG66   
REMARK   1  TITL 4 (E10)                                                        
REMARK   1  REF    J.MOL.BIOL.                   V. 213   621 1990              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 5                                                          
REMARK   1  AUTH   M.BOLOGNESI,S.ONESTI,G.GATTI,A.CODA,P.ASCENZI,M.BRUNORI      
REMARK   1  TITL   APLYSIA LIMACINA MYOGLOBIN. CRYSTALLOGRAPHIC ANALYSIS AT 1.6 
REMARK   1  TITL 2 ANGSTROMS RESOLUTION                                         
REMARK   1  REF    J.MOL.BIOL.                   V. 205   529 1989              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 6                                                          
REMARK   1  AUTH   M.BOLOGNESI,E.CANNILLO,P.ASCENZI,G.M.GIACOMETTI,A.MERLI,     
REMARK   1  AUTH 2 M.BRUNORI                                                    
REMARK   1  TITL   REACTIVITY OF FERRIC APLYSIA AND SPERM WHALE MYOGLOBINS      
REMARK   1  TITL 2 TOWARDS IMIDAZOLE. X-RAY AND BINDING STUDY                   
REMARK   1  REF    J.MOL.BIOL.                   V. 158   305 1982              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : TNT                                                  
REMARK   3   AUTHORS     : TRONRUD,TEN EYCK,MATTHEWS                            
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)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : NULL                           
REMARK   3                                                                      
REMARK   3  USING DATA ABOVE SIGMA CUTOFF.                                      
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.151                           
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  USING ALL DATA, NO SIGMA CUTOFF.                                    
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            : 1086                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 45                                      
REMARK   3   SOLVENT ATOMS            : 88                                      
REMARK   3                                                                      
REMARK   3  WILSON B VALUE (FROM FCALC, A**2) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.    RMS    WEIGHT  COUNT           
REMARK   3   BOND LENGTHS                 (A) : 0.019 ; NULL  ; NULL            
REMARK   3   BOND ANGLES            (DEGREES) : 2.940 ; NULL  ; NULL            
REMARK   3   TORSION ANGLES         (DEGREES) : NULL  ; NULL  ; NULL            
REMARK   3   PSEUDOROTATION ANGLES  (DEGREES) : NULL  ; NULL  ; NULL            
REMARK   3   TRIGONAL CARBON PLANES       (A) : NULL  ; NULL  ; NULL            
REMARK   3   GENERAL PLANES               (A) : NULL  ; NULL  ; NULL            
REMARK   3   ISOTROPIC THERMAL FACTORS (A**2) : NULL  ; NULL  ; NULL            
REMARK   3   NON-BONDED CONTACTS          (A) : NULL  ; NULL  ; NULL            
REMARK   3                                                                      
REMARK   3  INCORRECT CHIRAL-CENTERS (COUNT) : NULL                             
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
REMARK   3                                                                      
REMARK   3  RESTRAINT LIBRARIES.                                                
REMARK   3   STEREOCHEMISTRY : NULL                                             
REMARK   3   ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL                         
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2FAL 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_1000178076.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 37.94                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.98                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       26.49000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       16.25000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       35.35000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       16.25000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       26.49000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       35.35000            
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     ASP A    8   CG   OD1  OD2                                       
REMARK 480     LYS A   12   CE   NZ                                             
REMARK 480     LYS A   21   CD   NZ                                             
REMARK 480     ASP A   27   CG   OD1  OD2                                       
REMARK 480     LYS A   35   NZ                                                  
REMARK 480     LYS A   47   CG   CD   CE   NZ                                   
REMARK 480     LYS A   49   CE   NZ                                             
REMARK 480     LYS A   55   CE                                                  
REMARK 480     ASN A   76   ND2                                                 
REMARK 480     LYS A   83   NZ                                                  
REMARK 480     GLU A   94   OE2                                                 
REMARK 480     GLU A  106   OE1  OE2                                            
REMARK 480     SER A  110   OG                                                  
REMARK 480     LYS A  142   CE   NZ                                             
REMARK 480     GLY A  145   CA   C    O                                         
REMARK 480     ALA A  146   OXT                                                 
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   CG   LYS A    59     O    HOH A   159     3757     1.84            
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    GLU A  73   CD    GLU A  73   OE1     0.071                       
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    ASP A   8   CB  -  CG  -  OD1 ANGL. DEV. =  -5.6 DEGREES          
REMARK 500    ASP A  27   CB  -  CG  -  OD1 ANGL. DEV. =  -5.4 DEGREES          
REMARK 500    ASP A  38   CB  -  CG  -  OD2 ANGL. DEV. =  -5.7 DEGREES          
REMARK 500    ASP A  53   CB  -  CG  -  OD1 ANGL. DEV. =  -6.8 DEGREES          
REMARK 500    ARG A  70   NE  -  CZ  -  NH1 ANGL. DEV. =   3.9 DEGREES          
REMARK 500    ASN A  72   CB  -  CG  -  OD1 ANGL. DEV. = -13.1 DEGREES          
REMARK 500    ASP A 139   CB  -  CG  -  OD2 ANGL. DEV. =  -7.8 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 615                                                                      
REMARK 615 ZERO OCCUPANCY ATOM                                                  
REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 615   M RES C  SSEQI                                                     
REMARK 615     HEM A   148                                                      
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 148  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  95   NE2                                                    
REMARK 620 2 HEM A 148   NA   88.6                                              
REMARK 620 3 HEM A 148   NB   95.4  90.6                                        
REMARK 620 4 HEM A 148   NC   91.4 179.5  88.9                                  
REMARK 620 5 HEM A 148   ND   89.3  94.1 173.4  86.4                            
REMARK 620 6 CYN A 147   C   163.3  90.3 101.3  89.9  74.1                      
REMARK 620 7 CYN A 147   N   165.5  77.0  85.0 103.0  91.6  21.2                
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 CYN A 147                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 148                 
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 BASED ON ANALYSIS OF THE ELECTRON DENSITY MAPS, SEVERAL              
REMARK 999 AMINO ACIDS HAVE BEEN REASSIGNED IN THIS ENTRY COMPARED TO           
REMARK 999 THE SEQUENCE PUBLISHED IN 1973.  THE CHANGES ARE AS                  
REMARK 999 FOLLOWS:                                                             
REMARK 999                                                                      
REMARK 999    RESIDUE   1973   ENTRY                                            
REMARK 999      26       ALA    LEU    LEU ELECTRON DENSITY SEEN                
REMARK 999                             AFTER SEVERAL OMIT MAPS                  
REMARK 999                                                                      
REMARK 999      77       ASP    ASN    MORE APPROPRIATE AS ASN                  
REMARK 999                             OWING TO THE APOLAR                      
REMARK 999                             ENVIRONMENT (MET 84)                     
REMARK 999                                                                      
REMARK 999     129                     EXTRA ALA CONFIRMED BY SEVERAL           
REMARK 999                             OMIT MAPS                                
REMARK 999                                                                      
REMARK 999    C-TERMINAL LYS    ALA    ELECTRON DENSITY ALWAYS                  
REMARK 999                             MISSING AFTER CB - MAY BE LYS            
DBREF  2FAL A    1   145  UNP    P02210   GLB_APLLI        1    145             
SEQADV 2FAL ASN A   22  UNP  P02210    ASP    22 CONFLICT                       
SEQADV 2FAL LEU A   26  UNP  P02210    ASP    26 CONFLICT                       
SEQADV 2FAL ASP A   27  UNP  P02210    ALA    27 CONFLICT                       
SEQADV 2FAL ASN A   80  UNP  P02210    ASP    80 CONFLICT                       
SEQRES   1 A  147  ACE SER LEU SER ALA ALA GLU ALA ASP LEU ALA GLY LYS          
SEQRES   2 A  147  SER TRP ALA PRO VAL PHE ALA ASN LYS ASN ALA ASN GLY          
SEQRES   3 A  147  LEU ASP PHE LEU VAL ALA LEU PHE GLU LYS PHE PRO ASP          
SEQRES   4 A  147  SER ALA ASN PHE PHE ALA ASP PHE LYS GLY LYS SER VAL          
SEQRES   5 A  147  ALA ASP ILE LYS ALA SER PRO LYS LEU ARG ASP VAL SER          
SEQRES   6 A  147  SER ARG ILE PHE THR ARG LEU ASN GLU PHE VAL ASN ASN          
SEQRES   7 A  147  ALA ALA ASN ALA GLY LYS MET SER ALA MET LEU SER GLN          
SEQRES   8 A  147  PHE ALA LYS GLU HIS VAL GLY PHE GLY VAL GLY SER ALA          
SEQRES   9 A  147  GLN PHE GLU ASN VAL ARG SER MET PHE PRO GLY PHE VAL          
SEQRES  10 A  147  ALA SER VAL ALA ALA PRO PRO ALA GLY ALA ASP ALA ALA          
SEQRES  11 A  147  TRP THR LYS LEU PHE GLY LEU ILE ILE ASP ALA LEU LYS          
SEQRES  12 A  147  ALA ALA GLY ALA                                              
HET    ACE  A   0       3                                                       
HET    CYN  A 147       2                                                       
HET    HEM  A 148      43                                                       
HETNAM     ACE ACETYL GROUP                                                     
HETNAM     CYN CYANIDE ION                                                      
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETSYN     HEM HEME                                                             
FORMUL   1  ACE    C2 H4 O                                                      
FORMUL   2  CYN    C N 1-                                                       
FORMUL   3  HEM    C34 H32 FE N4 O4                                             
FORMUL   4  HOH   *88(H2 O)                                                     
HELIX    1   A ALA A    4  ALA A   19  1                                  16    
HELIX    2   B LYS A   21  LYS A   35  1                                  15    
HELIX    3   C PRO A   37  PHE A   42  5                                   6    
HELIX    4   D VAL A   51  LYS A   55  1                                   5    
HELIX    5   E LYS A   59  ASN A   76  1                                  18    
HELIX    6   F ALA A   81  GLY A   97  1                                  17    
HELIX    7   G SER A  102  SER A  118  1                                  17    
HELIX    8   H ALA A  126  ALA A  143  1                                  18    
LINK         C   ACE A   0                 N   SER A   1     1555   1555  1.33  
LINK         NE2 HIS A  95                FE   HEM A 148     1555   1555  2.12  
LINK         C   CYN A 147                FE   HEM A 148     1555   1555  2.15  
LINK         N   CYN A 147                FE   HEM A 148     1555   1555  2.85  
SITE     1 AC1  4 PHE A  43  ARG A  66  ILE A  67  HEM A 148                    
SITE     1 AC2 13 PHE A  42  PHE A  43  ALA A  44  ARG A  66                    
SITE     2 AC2 13 ILE A  67  ARG A  70  PHE A  91  HIS A  95                    
SITE     3 AC2 13 PHE A  98  VAL A 100  PHE A 105  CYN A 147                    
SITE     4 AC2 13 HOH A 151                                                     
CRYST1   52.980   70.700   32.500  90.00  90.00  90.00 P 21 21 21    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      0.018875  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014144  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.030769        0.00000                         
HETATM    1  C   ACE A   0      70.972 -15.877  40.756  1.00 80.00           C  
HETATM    2  O   ACE A   0      70.858 -14.637  40.645  1.00 27.57           O  
HETATM    3  CH3 ACE A   0      71.885 -16.563  41.754  1.00 29.12           C