HEADER    OXIDOREDUCTASE                          20-MAR-14   4CUL              
TITLE     STRUCTURE OF BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN IN  
TITLE    2 COMPLEX WITH 6-ACETYL-2-AMINO-7,7-DIMETHYL-7,8-DIHYDROPTERIDIN-4(3H)-
TITLE    3 ONE                                                                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: NITRIC OXIDE SYNTHASE, ENDOTHELIAL;                        
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: HEME DOMAIN, RESIDUES 40-482;                              
COMPND   5 SYNONYM: CONSTITUTIVE NOS, CNOS, EC-NOS, ENDOTHELIAL NOS, ENOS, NOS  
COMPND   6 TYPE III, NOSIII;                                                    
COMPND   7 EC: 1.14.13.39;                                                      
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   3 ORGANISM_COMMON: CATTLE;                                             
SOURCE   4 ORGANISM_TAXID: 9913;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_VECTOR: PCWORI                                     
KEYWDS    OXIDOREDUCTASE, COFACTOR ANALOG COMPLEX                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    G.CHREIFI,H.LI,T.L.POULOS                                             
REVDAT   3   06-NOV-24 4CUL    1       REMARK LINK                              
REVDAT   2   16-JUL-14 4CUL    1       JRNL                                     
REVDAT   1   28-MAY-14 4CUL    0                                                
JRNL        AUTH   G.CHREIFI,H.LI,C.R.MCINNES,C.L.GIBSON,C.J.SUCKLING,          
JRNL        AUTH 2 T.L.POULOS                                                   
JRNL        TITL   COMMUNICATION BETWEEN THE ZINC AND TETRAHYDROBIOPTERIN       
JRNL        TITL 2 BINDING SITES IN NITRIC OXIDE SYNTHASE.                      
JRNL        REF    BIOCHEMISTRY                  V.  53  4216 2014              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   24819538                                                     
JRNL        DOI    10.1021/BI5003986                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.23 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.8.0049                                      
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) : 2.23                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 44883                          
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) : 0.167                           
REMARK   3   R VALUE            (WORKING SET) : 0.165                           
REMARK   3   FREE R VALUE                     : 0.209                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2351                            
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) : 2.23                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.29                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 3240                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 98.52                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2670                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 158                          
REMARK   3   BIN FREE R VALUE                    : 0.2900                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 6147                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 152                                     
REMARK   3   SOLVENT ATOMS            : 279                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 46.48                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 1.27000                                              
REMARK   3    B22 (A**2) : -0.38000                                             
REMARK   3    B33 (A**2) : -0.90000                                             
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): 0.223         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.182         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.153         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 11.977        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.970                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.952                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  6482 ; 0.011 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  8857 ; 1.452 ; 1.969       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   766 ; 6.265 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   308 ;35.671 ;23.506       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   990 ;15.860 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    48 ;20.921 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   927 ; 0.096 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  5078 ; 0.007 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
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):  3080 ; 1.920 ; 2.919       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3840 ; 3.137 ; 4.358       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  3402 ; 2.661 ; 3.186       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2): 10246 ; 6.788 ;25.403       
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  : 2                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A    67        A   482                          
REMARK   3    ORIGIN FOR THE GROUP (A):  11.2790  10.0630  32.1180              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2321 T22:   0.0042                                     
REMARK   3      T33:   0.0290 T12:  -0.0137                                     
REMARK   3      T13:   0.0006 T23:  -0.0040                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.8101 L22:   1.3635                                     
REMARK   3      L33:   1.2805 L12:  -0.3452                                     
REMARK   3      L13:  -0.3704 L23:   0.3841                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0119 S12:  -0.0196 S13:   0.0220                       
REMARK   3      S21:  -0.1267 S22:   0.0349 S23:  -0.1901                       
REMARK   3      S31:  -0.0878 S32:   0.0689 S33:  -0.0469                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B    69        B   482                          
REMARK   3    ORIGIN FOR THE GROUP (A):   2.5210   5.4170  68.4300              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2310 T22:   0.0387                                     
REMARK   3      T33:   0.0099 T12:   0.0139                                     
REMARK   3      T13:  -0.0156 T23:  -0.0025                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.7343 L22:   0.9581                                     
REMARK   3      L33:   2.2889 L12:  -0.2292                                     
REMARK   3      L13:   0.5462 L23:  -0.8712                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0617 S12:  -0.0436 S13:  -0.0517                       
REMARK   3      S21:  -0.0008 S22:  -0.0631 S23:  -0.0344                       
REMARK   3      S31:   0.1292 S32:   0.0163 S33:   0.0014                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : 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: U VALUES WITH TLS ADDED. HYDROGENS HAVE   
REMARK   3  BEEN USED IF PRESENT IN THE INPUT                                   
REMARK   4                                                                      
REMARK   4 4CUL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 20-MAR-14.                  
REMARK 100 THE DEPOSITION ID IS D_1290060019.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 03-APR-12                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.25                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRL                               
REMARK 200  BEAMLINE                       : BL7-1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.12709                            
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 47234                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.230                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.8                               
REMARK 200  DATA REDUNDANCY                : 4.400                              
REMARK 200  R MERGE                    (I) : 0.09000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 19.8600                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.23                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.31                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.40                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.88000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.010                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER                        
REMARK 200 SOFTWARE USED: REFMAC                                                
REMARK 200 STARTING MODEL: NONE                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.70                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 18-20% PEG3350, 250MM MAGNESIUM          
REMARK 280  ACETATE, 100MM CACODYLATE PH 6.25 AND 5MM TCEP                      
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       28.54600            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       79.12600            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       52.73400            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       79.12600            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       28.54600            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       52.73400            
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 6800 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 32240 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -73.5 KCAL/MOL                        
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 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     ARG A    40                                                      
REMARK 465     ALA A    41                                                      
REMARK 465     PRO A    42                                                      
REMARK 465     ALA A    43                                                      
REMARK 465     PRO A    44                                                      
REMARK 465     ALA A    45                                                      
REMARK 465     THR A    46                                                      
REMARK 465     PRO A    47                                                      
REMARK 465     HIS A    48                                                      
REMARK 465     ALA A    49                                                      
REMARK 465     PRO A    50                                                      
REMARK 465     ASP A    51                                                      
REMARK 465     HIS A    52                                                      
REMARK 465     SER A    53                                                      
REMARK 465     PRO A    54                                                      
REMARK 465     ALA A    55                                                      
REMARK 465     PRO A    56                                                      
REMARK 465     ASN A    57                                                      
REMARK 465     SER A    58                                                      
REMARK 465     PRO A    59                                                      
REMARK 465     THR A    60                                                      
REMARK 465     LEU A    61                                                      
REMARK 465     THR A    62                                                      
REMARK 465     ARG A    63                                                      
REMARK 465     PRO A    64                                                      
REMARK 465     PRO A    65                                                      
REMARK 465     GLU A    66                                                      
REMARK 465     GLN A    91                                                      
REMARK 465     GLN A    92                                                      
REMARK 465     ASP A    93                                                      
REMARK 465     GLY A    94                                                      
REMARK 465     PRO A    95                                                      
REMARK 465     CYS A    96                                                      
REMARK 465     THR A    97                                                      
REMARK 465     PRO A    98                                                      
REMARK 465     ARG A    99                                                      
REMARK 465     CYS A   100                                                      
REMARK 465     CYS A   101                                                      
REMARK 465     LEU A   102                                                      
REMARK 465     GLY A   103                                                      
REMARK 465     SER A   104                                                      
REMARK 465     LEU A   105                                                      
REMARK 465     VAL A   106                                                      
REMARK 465     LEU A   107                                                      
REMARK 465     PRO A   108                                                      
REMARK 465     ARG A   109                                                      
REMARK 465     LYS A   110                                                      
REMARK 465     LEU A   111                                                      
REMARK 465     GLN A   112                                                      
REMARK 465     THR A   113                                                      
REMARK 465     ARG A   114                                                      
REMARK 465     PRO A   115                                                      
REMARK 465     SER A   116                                                      
REMARK 465     PRO A   117                                                      
REMARK 465     GLY A   118                                                      
REMARK 465     PRO A   119                                                      
REMARK 465     PRO A   120                                                      
REMARK 465     ARG B    40                                                      
REMARK 465     ALA B    41                                                      
REMARK 465     PRO B    42                                                      
REMARK 465     ALA B    43                                                      
REMARK 465     PRO B    44                                                      
REMARK 465     ALA B    45                                                      
REMARK 465     THR B    46                                                      
REMARK 465     PRO B    47                                                      
REMARK 465     HIS B    48                                                      
REMARK 465     ALA B    49                                                      
REMARK 465     PRO B    50                                                      
REMARK 465     ASP B    51                                                      
REMARK 465     HIS B    52                                                      
REMARK 465     SER B    53                                                      
REMARK 465     PRO B    54                                                      
REMARK 465     ALA B    55                                                      
REMARK 465     PRO B    56                                                      
REMARK 465     ASN B    57                                                      
REMARK 465     SER B    58                                                      
REMARK 465     PRO B    59                                                      
REMARK 465     THR B    60                                                      
REMARK 465     LEU B    61                                                      
REMARK 465     THR B    62                                                      
REMARK 465     ARG B    63                                                      
REMARK 465     PRO B    64                                                      
REMARK 465     PRO B    65                                                      
REMARK 465     GLU B    66                                                      
REMARK 465     GLY B    67                                                      
REMARK 465     PRO B    68                                                      
REMARK 465     GLN B    91                                                      
REMARK 465     GLN B    92                                                      
REMARK 465     ASP B    93                                                      
REMARK 465     GLY B    94                                                      
REMARK 465     PRO B    95                                                      
REMARK 465     CYS B    96                                                      
REMARK 465     THR B    97                                                      
REMARK 465     PRO B    98                                                      
REMARK 465     ARG B    99                                                      
REMARK 465     CYS B   100                                                      
REMARK 465     CYS B   101                                                      
REMARK 465     LEU B   102                                                      
REMARK 465     GLY B   103                                                      
REMARK 465     SER B   104                                                      
REMARK 465     LEU B   105                                                      
REMARK 465     VAL B   106                                                      
REMARK 465     LEU B   107                                                      
REMARK 465     PRO B   108                                                      
REMARK 465     ARG B   109                                                      
REMARK 465     LYS B   110                                                      
REMARK 465     LEU B   111                                                      
REMARK 465     GLN B   112                                                      
REMARK 465     THR B   113                                                      
REMARK 465     ARG B   114                                                      
REMARK 465     PRO B   115                                                      
REMARK 465     SER B   116                                                      
REMARK 465     PRO B   117                                                      
REMARK 465     GLY B   118                                                      
REMARK 465     PRO B   119                                                      
REMARK 465     PRO B   120                                                      
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    HOH B  2093     O    HOH B  2127              2.14            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG B 240   NE  -  CZ  -  NH1 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    ARG B 240   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.3 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    PRO A  68     -138.54    -88.97                                   
REMARK 500    ALA A 122      -45.95     67.48                                   
REMARK 500    GLN A 259      -52.00    -28.83                                   
REMARK 500    ASN A 285       36.98   -154.00                                   
REMARK 500    ALA A 353       68.62   -155.85                                   
REMARK 500    ARG A 374     -136.37   -117.87                                   
REMARK 500    ASP B 202       39.36    -99.06                                   
REMARK 500    ASP B 260       30.69    -96.87                                   
REMARK 500    ASN B 285       27.22   -153.07                                   
REMARK 500    ALA B 353       71.01   -162.17                                   
REMARK 500    THR B 366      -61.46   -106.76                                   
REMARK 500    ARG B 374     -132.93   -111.56                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600                                                                      
REMARK 600 CACODYLIC ACID (CAD): DIMETHYL ARSENIC MOIETY FROM                   
REMARK 600  CACODYLIC ACID                                                      
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 500  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 186   SG                                                     
REMARK 620 2 HEM A 500   NA   91.8                                              
REMARK 620 3 HEM A 500   NB   89.6  89.0                                        
REMARK 620 4 HEM A 500   NC   90.8 177.2  90.1                                  
REMARK 620 5 HEM A 500   ND   92.6  91.2 177.8  89.6                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM B 500  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B 186   SG                                                     
REMARK 620 2 HEM B 500   NA   93.4                                              
REMARK 620 3 HEM B 500   NB   90.8  88.3                                        
REMARK 620 4 HEM B 500   NC   88.9 177.4  90.6                                  
REMARK 620 5 HEM B 500   ND   91.5  91.7 177.7  89.3                            
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 500                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ARG A 700                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE WSD A 800                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 860                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 500                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ARG B 700                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE WSD B 800                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT B 860                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4CUM   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN    
REMARK 900 IN COMPLEX WITH 2-AMINO-9A-METHYL-6,7 ,8,9,9A-10-HEXAHYDROBENZO(G)   
REMARK 900 PTERIN-4-ONE                                                         
REMARK 900 RELATED ID: 4CUN   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN    
REMARK 900 IN COMPLEX WITH 2-AMINO-9A-METHYL-8,9 ,9A,10-TETRAHYDROBENZO(G)      
REMARK 900 PTERIN-4,6-DIONE                                                     
REMARK 900 RELATED ID: 4CVG   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN    
REMARK 900 (H4B-FREE) SUPPLEMENTED WITH 50UM ZN ACETATE AND WITH POOR BINDING   
REMARK 900 OF 6-ACETYL-2-AMINO- 7,7-DIMETHYL-7,8-DIHYDROPTERIDIN-4(3H)-ONE.     
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 RESIDUE 100 IS FOUND AS AN ARG IN STRUCTURE BUT IS A CYS             
REMARK 999 IN DATABASE                                                          
DBREF  4CUL A   40   482  UNP    P29473   NOS3_BOVIN      40    482             
DBREF  4CUL B   40   482  UNP    P29473   NOS3_BOVIN      40    482             
SEQRES   1 A  443  ARG ALA PRO ALA PRO ALA THR PRO HIS ALA PRO ASP HIS          
SEQRES   2 A  443  SER PRO ALA PRO ASN SER PRO THR LEU THR ARG PRO PRO          
SEQRES   3 A  443  GLU GLY PRO LYS PHE PRO ARG VAL LYS ASN TRP GLU LEU          
SEQRES   4 A  443  GLY SER ILE THR TYR ASP THR LEU CYS ALA GLN SER GLN          
SEQRES   5 A  443  GLN ASP GLY PRO CYS THR PRO ARG CYS CYS LEU GLY SER          
SEQRES   6 A  443  LEU VAL LEU PRO ARG LYS LEU GLN THR ARG PRO SER PRO          
SEQRES   7 A  443  GLY PRO PRO PRO ALA GLU GLN LEU LEU SER GLN ALA ARG          
SEQRES   8 A  443  ASP PHE ILE ASN GLN TYR TYR SER SER ILE LYS ARG SER          
SEQRES   9 A  443  GLY SER GLN ALA HIS GLU GLU ARG LEU GLN GLU VAL GLU          
SEQRES  10 A  443  ALA GLU VAL ALA SER THR GLY THR TYR HIS LEU ARG GLU          
SEQRES  11 A  443  SER GLU LEU VAL PHE GLY ALA LYS GLN ALA TRP ARG ASN          
SEQRES  12 A  443  ALA PRO ARG CYS VAL GLY ARG ILE GLN TRP GLY LYS LEU          
SEQRES  13 A  443  GLN VAL PHE ASP ALA ARG ASP CYS SER SER ALA GLN GLU          
SEQRES  14 A  443  MET PHE THR TYR ILE CYS ASN HIS ILE LYS TYR ALA THR          
SEQRES  15 A  443  ASN ARG GLY ASN LEU ARG SER ALA ILE THR VAL PHE PRO          
SEQRES  16 A  443  GLN ARG ALA PRO GLY ARG GLY ASP PHE ARG ILE TRP ASN          
SEQRES  17 A  443  SER GLN LEU VAL ARG TYR ALA GLY TYR ARG GLN GLN ASP          
SEQRES  18 A  443  GLY SER VAL ARG GLY ASP PRO ALA ASN VAL GLU ILE THR          
SEQRES  19 A  443  GLU LEU CYS ILE GLN HIS GLY TRP THR PRO GLY ASN GLY          
SEQRES  20 A  443  ARG PHE ASP VAL LEU PRO LEU LEU LEU GLN ALA PRO ASP          
SEQRES  21 A  443  GLU ALA PRO GLU LEU PHE VAL LEU PRO PRO GLU LEU VAL          
SEQRES  22 A  443  LEU GLU VAL PRO LEU GLU HIS PRO THR LEU GLU TRP PHE          
SEQRES  23 A  443  ALA ALA LEU GLY LEU ARG TRP TYR ALA LEU PRO ALA VAL          
SEQRES  24 A  443  SER ASN MET LEU LEU GLU ILE GLY GLY LEU GLU PHE SER          
SEQRES  25 A  443  ALA ALA PRO PHE SER GLY TRP TYR MET SER THR GLU ILE          
SEQRES  26 A  443  GLY THR ARG ASN LEU CYS ASP PRO HIS ARG TYR ASN ILE          
SEQRES  27 A  443  LEU GLU ASP VAL ALA VAL CAS MET ASP LEU ASP THR ARG          
SEQRES  28 A  443  THR THR SER SER LEU TRP LYS ASP LYS ALA ALA VAL GLU          
SEQRES  29 A  443  ILE ASN LEU ALA VAL LEU HIS SER PHE GLN LEU ALA LYS          
SEQRES  30 A  443  VAL THR ILE VAL ASP HIS HIS ALA ALA THR VAL SER PHE          
SEQRES  31 A  443  MET LYS HIS LEU ASP ASN GLU GLN LYS ALA ARG GLY GLY          
SEQRES  32 A  443  CYS PRO ALA ASP TRP ALA TRP ILE VAL PRO PRO ILE SER          
SEQRES  33 A  443  GLY SER LEU THR PRO VAL PHE HIS GLN GLU MET VAL ASN          
SEQRES  34 A  443  TYR ILE LEU SER PRO ALA PHE ARG TYR GLN PRO ASP PRO          
SEQRES  35 A  443  TRP                                                          
SEQRES   1 B  443  ARG ALA PRO ALA PRO ALA THR PRO HIS ALA PRO ASP HIS          
SEQRES   2 B  443  SER PRO ALA PRO ASN SER PRO THR LEU THR ARG PRO PRO          
SEQRES   3 B  443  GLU GLY PRO LYS PHE PRO ARG VAL LYS ASN TRP GLU LEU          
SEQRES   4 B  443  GLY SER ILE THR TYR ASP THR LEU CYS ALA GLN SER GLN          
SEQRES   5 B  443  GLN ASP GLY PRO CYS THR PRO ARG CYS CYS LEU GLY SER          
SEQRES   6 B  443  LEU VAL LEU PRO ARG LYS LEU GLN THR ARG PRO SER PRO          
SEQRES   7 B  443  GLY PRO PRO PRO ALA GLU GLN LEU LEU SER GLN ALA ARG          
SEQRES   8 B  443  ASP PHE ILE ASN GLN TYR TYR SER SER ILE LYS ARG SER          
SEQRES   9 B  443  GLY SER GLN ALA HIS GLU GLU ARG LEU GLN GLU VAL GLU          
SEQRES  10 B  443  ALA GLU VAL ALA SER THR GLY THR TYR HIS LEU ARG GLU          
SEQRES  11 B  443  SER GLU LEU VAL PHE GLY ALA LYS GLN ALA TRP ARG ASN          
SEQRES  12 B  443  ALA PRO ARG CYS VAL GLY ARG ILE GLN TRP GLY LYS LEU          
SEQRES  13 B  443  GLN VAL PHE ASP ALA ARG ASP CYS SER SER ALA GLN GLU          
SEQRES  14 B  443  MET PHE THR TYR ILE CYS ASN HIS ILE LYS TYR ALA THR          
SEQRES  15 B  443  ASN ARG GLY ASN LEU ARG SER ALA ILE THR VAL PHE PRO          
SEQRES  16 B  443  GLN ARG ALA PRO GLY ARG GLY ASP PHE ARG ILE TRP ASN          
SEQRES  17 B  443  SER GLN LEU VAL ARG TYR ALA GLY TYR ARG GLN GLN ASP          
SEQRES  18 B  443  GLY SER VAL ARG GLY ASP PRO ALA ASN VAL GLU ILE THR          
SEQRES  19 B  443  GLU LEU CYS ILE GLN HIS GLY TRP THR PRO GLY ASN GLY          
SEQRES  20 B  443  ARG PHE ASP VAL LEU PRO LEU LEU LEU GLN ALA PRO ASP          
SEQRES  21 B  443  GLU ALA PRO GLU LEU PHE VAL LEU PRO PRO GLU LEU VAL          
SEQRES  22 B  443  LEU GLU VAL PRO LEU GLU HIS PRO THR LEU GLU TRP PHE          
SEQRES  23 B  443  ALA ALA LEU GLY LEU ARG TRP TYR ALA LEU PRO ALA VAL          
SEQRES  24 B  443  SER ASN MET LEU LEU GLU ILE GLY GLY LEU GLU PHE SER          
SEQRES  25 B  443  ALA ALA PRO PHE SER GLY TRP TYR MET SER THR GLU ILE          
SEQRES  26 B  443  GLY THR ARG ASN LEU CYS ASP PRO HIS ARG TYR ASN ILE          
SEQRES  27 B  443  LEU GLU ASP VAL ALA VAL CAS MET ASP LEU ASP THR ARG          
SEQRES  28 B  443  THR THR SER SER LEU TRP LYS ASP LYS ALA ALA VAL GLU          
SEQRES  29 B  443  ILE ASN LEU ALA VAL LEU HIS SER PHE GLN LEU ALA LYS          
SEQRES  30 B  443  VAL THR ILE VAL ASP HIS HIS ALA ALA THR VAL SER PHE          
SEQRES  31 B  443  MET LYS HIS LEU ASP ASN GLU GLN LYS ALA ARG GLY GLY          
SEQRES  32 B  443  CYS PRO ALA ASP TRP ALA TRP ILE VAL PRO PRO ILE SER          
SEQRES  33 B  443  GLY SER LEU THR PRO VAL PHE HIS GLN GLU MET VAL ASN          
SEQRES  34 B  443  TYR ILE LEU SER PRO ALA PHE ARG TYR GLN PRO ASP PRO          
SEQRES  35 B  443  TRP                                                          
MODRES 4CUL CAS A  384  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
MODRES 4CUL CAS B  384  CYS  S-(DIMETHYLARSENIC)CYSTEINE                        
HET    CAS  A 384       9                                                       
HET    CAS  B 384       9                                                       
HET    ARG  A 700      12                                                       
HET    HEM  A 500      43                                                       
HET    WSD  A 800      17                                                       
HET    ACT  A 860       4                                                       
HET    ARG  B 700      12                                                       
HET    HEM  B 500      43                                                       
HET    WSD  B 800      17                                                       
HET    ACT  B 860       4                                                       
HETNAM     CAS S-(DIMETHYLARSENIC)CYSTEINE                                      
HETNAM     ARG ARGININE                                                         
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETNAM     WSD 6-ACETYL-2-AMINO-7,7-DIMETHYL-7,8-DIHYDROPTERIDIN-               
HETNAM   2 WSD  4(3H)-ONE                                                       
HETNAM     ACT ACETATE ION                                                      
HETSYN     HEM HEME                                                             
FORMUL   1  CAS    2(C5 H12 AS N O2 S)                                          
FORMUL   3  ARG    2(C6 H15 N4 O2 1+)                                           
FORMUL   4  HEM    2(C34 H32 FE N4 O4)                                          
FORMUL   5  WSD    2(C10 H13 N5 O2)                                             
FORMUL   6  ACT    2(C2 H3 O2 1-)                                               
FORMUL  11  HOH   *279(H2 O)                                                    
HELIX    1   1 THR A   85  SER A   90  5                                   6    
HELIX    2   2 ALA A  122  ILE A  140  1                                  19    
HELIX    3   3 SER A  145  GLY A  163  1                                  19    
HELIX    4   4 ARG A  168  ASN A  182  1                                  15    
HELIX    5   5 GLY A  188  TRP A  192  5                                   5    
HELIX    6   6 SER A  205  ASN A  222  1                                  18    
HELIX    7   7 ARG A  223  ASN A  225  5                                   3    
HELIX    8   8 ASN A  269  HIS A  279  1                                  11    
HELIX    9   9 PRO A  308  VAL A  312  5                                   5    
HELIX   10  10 LEU A  322  GLY A  329  5                                   8    
HELIX   11  11 SER A  361  THR A  366  1                                   6    
HELIX   12  12 THR A  366  ASP A  371  1                                   6    
HELIX   13  13 ILE A  377  MET A  385  1                                   9    
HELIX   14  14 THR A  391  SER A  394  5                                   4    
HELIX   15  15 LEU A  395  LYS A  416  1                                  22    
HELIX   16  16 ASP A  421  GLY A  441  1                                  21    
HELIX   17  17 ASP A  446  VAL A  451  1                                   6    
HELIX   18  18 SER A  455  THR A  459  5                                   5    
HELIX   19  19 THR A  459  HIS A  463  5                                   5    
HELIX   20  20 THR B   85  SER B   90  5                                   6    
HELIX   21  21 PRO B  121  ILE B  140  1                                  20    
HELIX   22  22 SER B  145  GLY B  163  1                                  19    
HELIX   23  23 ARG B  168  ASN B  182  1                                  15    
HELIX   24  24 GLY B  188  TRP B  192  5                                   5    
HELIX   25  25 SER B  205  ASN B  222  1                                  18    
HELIX   26  26 ARG B  223  ASN B  225  5                                   3    
HELIX   27  27 ASN B  269  HIS B  279  1                                  11    
HELIX   28  28 PRO B  308  VAL B  312  5                                   5    
HELIX   29  29 LEU B  322  GLY B  329  5                                   8    
HELIX   30  30 SER B  361  THR B  366  1                                   6    
HELIX   31  31 THR B  366  ASP B  371  1                                   6    
HELIX   32  32 ILE B  377  MET B  385  1                                   9    
HELIX   33  33 THR B  391  SER B  394  5                                   4    
HELIX   34  34 LEU B  395  ALA B  415  1                                  21    
HELIX   35  35 ASP B  421  GLY B  441  1                                  21    
HELIX   36  36 ASP B  446  VAL B  451  1                                   6    
HELIX   37  37 SER B  455  THR B  459  5                                   5    
HELIX   38  38 THR B  459  HIS B  463  5                                   5    
SHEET    1  AA 2 ARG A  72  LYS A  74  0                                        
SHEET    2  AA 2 ILE A  81  TYR A  83 -1  O  THR A  82   N  VAL A  73           
SHEET    1  AB 4 GLN A 196  ASP A 199  0                                        
SHEET    2  AB 4 ALA A 229  VAL A 232  1  O  ILE A 230   N  PHE A 198           
SHEET    3  AB 4 PHE A 355  SER A 356 -1  O  SER A 356   N  ALA A 229           
SHEET    4  AB 4 ALA A 337  VAL A 338 -1  O  VAL A 338   N  PHE A 355           
SHEET    1  AC 3 ARG A 244  ILE A 245  0                                        
SHEET    2  AC 3 LEU A 293  GLN A 296 -1  O  GLN A 296   N  ARG A 244           
SHEET    3  AC 3 GLU A 303  PHE A 305 -1  O  GLU A 303   N  LEU A 295           
SHEET    1  AD 2 GLY A 255  ARG A 257  0                                        
SHEET    2  AD 2 VAL A 263  GLY A 265 -1  O  ARG A 264   N  TYR A 256           
SHEET    1  AE 2 GLU A 314  PRO A 316  0                                        
SHEET    2  AE 2 ARG A 331  TYR A 333 -1  O  TRP A 332   N  VAL A 315           
SHEET    1  AF 3 LEU A 348  PHE A 350  0                                        
SHEET    2  AF 3 LEU A 342  ILE A 345 -1  O  LEU A 343   N  PHE A 350           
SHEET    3  AF 3 ALA A 474  ARG A 476 -1  O  ALA A 474   N  GLU A 344           
SHEET    1  AG 2 TYR A 359  MET A 360  0                                        
SHEET    2  AG 2 ILE A 419  VAL A 420  1  N  VAL A 420   O  TYR A 359           
SHEET    1  BA 2 ARG B  72  LYS B  74  0                                        
SHEET    2  BA 2 ILE B  81  TYR B  83 -1  O  THR B  82   N  VAL B  73           
SHEET    1  BB 4 GLN B 196  ASP B 199  0                                        
SHEET    2  BB 4 ALA B 229  VAL B 232  1  O  ILE B 230   N  PHE B 198           
SHEET    3  BB 4 PHE B 355  SER B 356 -1  O  SER B 356   N  ALA B 229           
SHEET    4  BB 4 ALA B 337  VAL B 338 -1  O  VAL B 338   N  PHE B 355           
SHEET    1  BC 3 ARG B 244  ILE B 245  0                                        
SHEET    2  BC 3 LEU B 293  GLN B 296 -1  O  GLN B 296   N  ARG B 244           
SHEET    3  BC 3 GLU B 303  PHE B 305 -1  O  GLU B 303   N  LEU B 295           
SHEET    1  BD 2 GLY B 255  ARG B 257  0                                        
SHEET    2  BD 2 VAL B 263  GLY B 265 -1  O  ARG B 264   N  TYR B 256           
SHEET    1  BE 2 GLU B 314  PRO B 316  0                                        
SHEET    2  BE 2 ARG B 331  TYR B 333 -1  O  TRP B 332   N  VAL B 315           
SHEET    1  BF 3 LEU B 348  PHE B 350  0                                        
SHEET    2  BF 3 LEU B 342  ILE B 345 -1  O  LEU B 343   N  PHE B 350           
SHEET    3  BF 3 ALA B 474  ARG B 476 -1  O  ALA B 474   N  GLU B 344           
SHEET    1  BG 2 TYR B 359  MET B 360  0                                        
SHEET    2  BG 2 ILE B 419  VAL B 420  1  N  VAL B 420   O  TYR B 359           
LINK         C   VAL A 383                 N   CAS A 384     1555   1555  1.33  
LINK         C   CAS A 384                 N   MET A 385     1555   1555  1.34  
LINK         C   VAL B 383                 N   CAS B 384     1555   1555  1.33  
LINK         C   CAS B 384                 N   MET B 385     1555   1555  1.33  
LINK         SG  CYS A 186                FE   HEM A 500     1555   1555  2.53  
LINK         SG  CYS B 186                FE   HEM B 500     1555   1555  2.30  
CISPEP   1 SER A  472    PRO A  473          0         2.06                     
CISPEP   2 SER B  472    PRO B  473          0         1.70                     
SITE     1 AC1 18 TRP A 180  ARG A 185  CYS A 186  SER A 228                    
SITE     2 AC1 18 PHE A 355  SER A 356  TRP A 358  GLU A 363                    
SITE     3 AC1 18 TRP A 449  PHE A 475  TYR A 477  ARG A 700                    
SITE     4 AC1 18 WSD A 800  HOH A2095  HOH A2147  HOH A2150                    
SITE     5 AC1 18 HOH A2151  HOH A2152                                          
SITE     1 AC2 10 GLN A 249  ARG A 252  TYR A 333  TRP A 358                    
SITE     2 AC2 10 TYR A 359  GLU A 363  ASN A 368  HEM A 500                    
SITE     3 AC2 10 HOH A2091  HOH A2100                                          
SITE     1 AC3  9 ARG A 367  ALA A 448  TRP A 449  HEM A 500                    
SITE     2 AC3  9 HOH A2132  HOH A2152  TRP B  76  TRP B 447                    
SITE     3 AC3  9 PHE B 462                                                     
SITE     1 AC4  3 TRP A 358  VAL A 420  SER A 428                               
SITE     1 AC5 16 TRP B 180  ARG B 185  CYS B 186  PHE B 355                    
SITE     2 AC5 16 SER B 356  TRP B 358  GLU B 363  TRP B 449                    
SITE     3 AC5 16 TYR B 477  ARG B 700  WSD B 800  HOH B2121                    
SITE     4 AC5 16 HOH B2123  HOH B2124  HOH B2125  HOH B2126                    
SITE     1 AC6  9 GLN B 249  TYR B 333  VAL B 338  TRP B 358                    
SITE     2 AC6  9 TYR B 359  GLU B 363  ASN B 368  HEM B 500                    
SITE     3 AC6  9 HOH B2090                                                     
SITE     1 AC7  9 TRP A 447  PHE A 462  ARG B 367  ALA B 448                    
SITE     2 AC7  9 TRP B 449  HEM B 500  HOH B2114  HOH B2126                    
SITE     3 AC7  9 HOH B2127                                                     
SITE     1 AC8  5 TRP B 358  VAL B 420  SER B 428  HOH B2030                    
SITE     2 AC8  5 HOH B2104                                                     
CRYST1   57.092  105.468  158.252  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      0.017516  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.009482  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006319        0.00000