HEADER    OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR 25-MAY-10   3N5R              
TITLE     STRUCTURE OF ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED  
TITLE    2 WITH 4-(3-(2-(6-AMINO-4-METHYLPYRIDIN-2-YL)ETHYL)PHENETHYL)-6-       
TITLE    3 METHYLPYRIDIN-2-AMINE                                                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: NITRIC OXIDE SYNTHASE;                                     
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: ENDOTHELIAL NOS, ENOS, EC-NOS, NOS TYPE III, NOSIII,        
COMPND   5 CONSTITUTIVE NOS, CNOS;                                              
COMPND   6 EC: 1.14.13.39;                                                      
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   3 ORGANISM_COMMON: COW;                                                
SOURCE   4 ORGANISM_TAXID: 9913;                                                
SOURCE   5 GENE: NOS3;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PCWORI                                    
KEYWDS    NITRIC OXIDE SYNTHASE, HEME ENZYME, SUBSTRATE INHIBITOR,              
KEYWDS   2 OXIDOREDUCTASE, OXIDOREDUCTASE-OXIDOREDUCTASE INHIBITOR COMPLEX      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.L.DELKER,H.LI,T.L.POULOS                                            
REVDAT   3   21-FEB-24 3N5R    1       REMARK LINK                              
REVDAT   2   17-JUL-19 3N5R    1       REMARK                                   
REVDAT   1   09-FEB-11 3N5R    0                                                
JRNL        AUTH   S.L.DELKER,F.XUE,H.LI,J.JAMAL,R.B.SILVERMAN,T.L.POULOS       
JRNL        TITL   ROLE OF ZINC IN ISOFORM-SELECTIVE INHIBITOR BINDING TO       
JRNL        TITL 2 NEURONAL NITRIC OXIDE SYNTHASE .                             
JRNL        REF    BIOCHEMISTRY                  V.  49 10803 2010              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   21138269                                                     
JRNL        DOI    10.1021/BI1013479                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.57 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0089                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ENGH & HUBER                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.57                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 44.12                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 29883                          
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) : 0.185                           
REMARK   3   R VALUE            (WORKING SET) : 0.182                           
REMARK   3   FREE R VALUE                     : 0.244                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1548                            
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) : 2.57                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.64                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2193                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.83                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2660                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 132                          
REMARK   3   BIN FREE R VALUE                    : 0.3210                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 6450                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 203                                     
REMARK   3   SOLVENT ATOMS            : 110                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 54.60                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 45.27                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.50000                                              
REMARK   3    B22 (A**2) : -0.40000                                             
REMARK   3    B33 (A**2) : -0.10000                                             
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): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.305         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.234         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 22.656        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.952                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.914                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  6847 ; 0.014 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  9352 ; 1.534 ; 2.001       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   807 ; 6.454 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   320 ;36.052 ;23.375       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1040 ;17.842 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    54 ;21.198 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   972 ; 0.094 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  5356 ; 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):  4060 ; 0.620 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  6555 ; 1.207 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2787 ; 1.977 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  2797 ; 3.249 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 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):  11.1990  10.2200  31.9810              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0324 T22:   0.0752                                     
REMARK   3      T33:   0.0795 T12:  -0.0296                                     
REMARK   3      T13:   0.0248 T23:  -0.0114                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.8765 L22:   1.2893                                     
REMARK   3      L33:   1.4220 L12:  -0.1870                                     
REMARK   3      L13:  -0.3811 L23:   0.2518                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0190 S12:   0.0292 S13:   0.0305                       
REMARK   3      S21:  -0.1757 S22:   0.0540 S23:  -0.2339                       
REMARK   3      S31:  -0.0538 S32:   0.1214 S33:  -0.0730                       
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):   2.9430   5.9090  67.9950              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0279 T22:   0.1085                                     
REMARK   3      T33:   0.0748 T12:  -0.0142                                     
REMARK   3      T13:  -0.0137 T23:  -0.0149                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.8574 L22:   1.1805                                     
REMARK   3      L33:   2.0409 L12:  -0.1053                                     
REMARK   3      L13:   0.2187 L23:  -0.6940                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0566 S12:  -0.1492 S13:  -0.1317                       
REMARK   3      S21:   0.1260 S22:   0.0512 S23:   0.0078                       
REMARK   3      S31:   0.0554 S32:  -0.0834 S33:  -0.1077                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 3N5R COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-MAY-10.                  
REMARK 100 THE DEPOSITION ID IS D_1000059414.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 29-NOV-08                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
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) : 1.0                                
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          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 31470                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.570                              
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     (%) : 98.8                               
REMARK 200  DATA REDUNDANCY                : 3.600                              
REMARK 200  R MERGE                    (I) : 0.08200                            
REMARK 200  R SYM                      (I) : 0.08200                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 14.5600                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.57                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.61                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.70                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.59800                            
REMARK 200  R SYM FOR SHELL            (I) : 0.59800                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 49.56                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.44                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 9-12% PEG 3350, 0.2M MAGNESIUM           
REMARK 280  ACETATE, 0.1M SODIUM CACODYLATE, 0.005M TCEP-HCL , PH 6.5, VAPOR    
REMARK 280  DIFFUSION, SITTING DROP, TEMPERATURE 278K                           
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       28.96400            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       78.45050            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       53.35400            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       78.45050            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       28.96400            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       53.35400            
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: 11200 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 32760 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -86.0 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     SER A    39                                                      
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     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     SER B    39                                                      
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     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 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    LYS A  69       48.44    -93.88                                   
REMARK 500    THR A 164     -164.76   -127.20                                   
REMARK 500    ASN A 222       44.93     37.18                                   
REMARK 500    ARG A 236      129.55    -39.29                                   
REMARK 500    ASP A 260       47.48    -82.45                                   
REMARK 500    ASN A 285       25.46   -147.60                                   
REMARK 500    PHE A 288       43.45   -140.17                                   
REMARK 500    ARG A 374     -130.52   -113.88                                   
REMARK 500    ASP A 386       31.52     71.38                                   
REMARK 500    PRO B 121      116.07    -25.83                                   
REMARK 500    ALA B 122      -52.78    -20.15                                   
REMARK 500    ASP B 202       48.10   -101.48                                   
REMARK 500    ASP B 260       34.69    -71.13                                   
REMARK 500    ASN B 285       32.16   -152.39                                   
REMARK 500    PHE B 288       44.68   -143.40                                   
REMARK 500    ALA B 353       69.63   -154.48                                   
REMARK 500    THR B 366      -60.67   -100.15                                   
REMARK 500    ARG B 374     -130.13   -103.04                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     CAD A  950                                                       
REMARK 610     CAD B  950                                                       
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                              ZN A 900  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  96   SG                                                     
REMARK 620 2 CYS A 101   SG  110.1                                              
REMARK 620 3 CYS B  96   SG  120.7 105.1                                        
REMARK 620 4 CYS B 101   SG  107.0 103.8 108.8                                  
REMARK 620 N                    1     2     3                                   
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   96.8                                              
REMARK 620 3 HEM A 500   NB   96.2  96.8                                        
REMARK 620 4 HEM A 500   NC   97.0 166.1  83.4                                  
REMARK 620 5 HEM A 500   ND   99.9  81.9 163.9  93.9                            
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   94.6                                              
REMARK 620 3 HEM B 500   NB   96.0  90.0                                        
REMARK 620 4 HEM B 500   NC   96.5 168.4  92.0                                  
REMARK 620 5 HEM B 500   ND   98.7  88.1 165.3  87.0                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 500                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 850                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 860                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 880                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CAD A 950                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE H4B A 600                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE XFH A 800                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 900                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 500                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT B 860                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL B 880                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CAD B 950                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE H4B B 600                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE XFH B 800                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3N5P   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N5Q   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N5S   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N5T   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N5V   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N5W   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N5X   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N5Y   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N5Z   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N60   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N61   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N62   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N63   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N64   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N65   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N66   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N67   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N68   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N69   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N6A   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N6B   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N6C   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N6D   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N6E   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N6F   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3N6G   RELATED DB: PDB                                   
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 AUTHORS STATE THAT THEIR DENSITY SUPPORTS THAT THE RESIDUE IS ARG.   
DBREF  3N5R A   39   482  UNP    P29473   NOS3_BOVIN      39    482             
DBREF  3N5R B   39   482  UNP    P29473   NOS3_BOVIN      39    482             
SEQADV 3N5R ARG A  100  UNP  P29473    CYS   100 SEE REMARK 999                 
SEQADV 3N5R ARG B  100  UNP  P29473    CYS   100 SEE REMARK 999                 
SEQRES   1 A  444  SER ARG ALA PRO ALA PRO ALA THR PRO HIS ALA PRO ASP          
SEQRES   2 A  444  HIS SER PRO ALA PRO ASN SER PRO THR LEU THR ARG PRO          
SEQRES   3 A  444  PRO GLU GLY PRO LYS PHE PRO ARG VAL LYS ASN TRP GLU          
SEQRES   4 A  444  LEU GLY SER ILE THR TYR ASP THR LEU CYS ALA GLN SER          
SEQRES   5 A  444  GLN GLN ASP GLY PRO CYS THR PRO ARG ARG CYS LEU GLY          
SEQRES   6 A  444  SER LEU VAL LEU PRO ARG LYS LEU GLN THR ARG PRO SER          
SEQRES   7 A  444  PRO GLY PRO PRO PRO ALA GLU GLN LEU LEU SER GLN ALA          
SEQRES   8 A  444  ARG ASP PHE ILE ASN GLN TYR TYR SER SER ILE LYS ARG          
SEQRES   9 A  444  SER GLY SER GLN ALA HIS GLU GLU ARG LEU GLN GLU VAL          
SEQRES  10 A  444  GLU ALA GLU VAL ALA SER THR GLY THR TYR HIS LEU ARG          
SEQRES  11 A  444  GLU SER GLU LEU VAL PHE GLY ALA LYS GLN ALA TRP ARG          
SEQRES  12 A  444  ASN ALA PRO ARG CYS VAL GLY ARG ILE GLN TRP GLY LYS          
SEQRES  13 A  444  LEU GLN VAL PHE ASP ALA ARG ASP CYS SER SER ALA GLN          
SEQRES  14 A  444  GLU MET PHE THR TYR ILE CYS ASN HIS ILE LYS TYR ALA          
SEQRES  15 A  444  THR ASN ARG GLY ASN LEU ARG SER ALA ILE THR VAL PHE          
SEQRES  16 A  444  PRO GLN ARG ALA PRO GLY ARG GLY ASP PHE ARG ILE TRP          
SEQRES  17 A  444  ASN SER GLN LEU VAL ARG TYR ALA GLY TYR ARG GLN GLN          
SEQRES  18 A  444  ASP GLY SER VAL ARG GLY ASP PRO ALA ASN VAL GLU ILE          
SEQRES  19 A  444  THR GLU LEU CYS ILE GLN HIS GLY TRP THR PRO GLY ASN          
SEQRES  20 A  444  GLY ARG PHE ASP VAL LEU PRO LEU LEU LEU GLN ALA PRO          
SEQRES  21 A  444  ASP GLU ALA PRO GLU LEU PHE VAL LEU PRO PRO GLU LEU          
SEQRES  22 A  444  VAL LEU GLU VAL PRO LEU GLU HIS PRO THR LEU GLU TRP          
SEQRES  23 A  444  PHE ALA ALA LEU GLY LEU ARG TRP TYR ALA LEU PRO ALA          
SEQRES  24 A  444  VAL SER ASN MET LEU LEU GLU ILE GLY GLY LEU GLU PHE          
SEQRES  25 A  444  SER ALA ALA PRO PHE SER GLY TRP TYR MET SER THR GLU          
SEQRES  26 A  444  ILE GLY THR ARG ASN LEU CYS ASP PRO HIS ARG TYR ASN          
SEQRES  27 A  444  ILE LEU GLU ASP VAL ALA VAL CYS MET ASP LEU ASP THR          
SEQRES  28 A  444  ARG THR THR SER SER LEU TRP LYS ASP LYS ALA ALA VAL          
SEQRES  29 A  444  GLU ILE ASN LEU ALA VAL LEU HIS SER PHE GLN LEU ALA          
SEQRES  30 A  444  LYS VAL THR ILE VAL ASP HIS HIS ALA ALA THR VAL SER          
SEQRES  31 A  444  PHE MET LYS HIS LEU ASP ASN GLU GLN LYS ALA ARG GLY          
SEQRES  32 A  444  GLY CYS PRO ALA ASP TRP ALA TRP ILE VAL PRO PRO ILE          
SEQRES  33 A  444  SER GLY SER LEU THR PRO VAL PHE HIS GLN GLU MET VAL          
SEQRES  34 A  444  ASN TYR ILE LEU SER PRO ALA PHE ARG TYR GLN PRO ASP          
SEQRES  35 A  444  PRO TRP                                                      
SEQRES   1 B  444  SER ARG ALA PRO ALA PRO ALA THR PRO HIS ALA PRO ASP          
SEQRES   2 B  444  HIS SER PRO ALA PRO ASN SER PRO THR LEU THR ARG PRO          
SEQRES   3 B  444  PRO GLU GLY PRO LYS PHE PRO ARG VAL LYS ASN TRP GLU          
SEQRES   4 B  444  LEU GLY SER ILE THR TYR ASP THR LEU CYS ALA GLN SER          
SEQRES   5 B  444  GLN GLN ASP GLY PRO CYS THR PRO ARG ARG CYS LEU GLY          
SEQRES   6 B  444  SER LEU VAL LEU PRO ARG LYS LEU GLN THR ARG PRO SER          
SEQRES   7 B  444  PRO GLY PRO PRO PRO ALA GLU GLN LEU LEU SER GLN ALA          
SEQRES   8 B  444  ARG ASP PHE ILE ASN GLN TYR TYR SER SER ILE LYS ARG          
SEQRES   9 B  444  SER GLY SER GLN ALA HIS GLU GLU ARG LEU GLN GLU VAL          
SEQRES  10 B  444  GLU ALA GLU VAL ALA SER THR GLY THR TYR HIS LEU ARG          
SEQRES  11 B  444  GLU SER GLU LEU VAL PHE GLY ALA LYS GLN ALA TRP ARG          
SEQRES  12 B  444  ASN ALA PRO ARG CYS VAL GLY ARG ILE GLN TRP GLY LYS          
SEQRES  13 B  444  LEU GLN VAL PHE ASP ALA ARG ASP CYS SER SER ALA GLN          
SEQRES  14 B  444  GLU MET PHE THR TYR ILE CYS ASN HIS ILE LYS TYR ALA          
SEQRES  15 B  444  THR ASN ARG GLY ASN LEU ARG SER ALA ILE THR VAL PHE          
SEQRES  16 B  444  PRO GLN ARG ALA PRO GLY ARG GLY ASP PHE ARG ILE TRP          
SEQRES  17 B  444  ASN SER GLN LEU VAL ARG TYR ALA GLY TYR ARG GLN GLN          
SEQRES  18 B  444  ASP GLY SER VAL ARG GLY ASP PRO ALA ASN VAL GLU ILE          
SEQRES  19 B  444  THR GLU LEU CYS ILE GLN HIS GLY TRP THR PRO GLY ASN          
SEQRES  20 B  444  GLY ARG PHE ASP VAL LEU PRO LEU LEU LEU GLN ALA PRO          
SEQRES  21 B  444  ASP GLU ALA PRO GLU LEU PHE VAL LEU PRO PRO GLU LEU          
SEQRES  22 B  444  VAL LEU GLU VAL PRO LEU GLU HIS PRO THR LEU GLU TRP          
SEQRES  23 B  444  PHE ALA ALA LEU GLY LEU ARG TRP TYR ALA LEU PRO ALA          
SEQRES  24 B  444  VAL SER ASN MET LEU LEU GLU ILE GLY GLY LEU GLU PHE          
SEQRES  25 B  444  SER ALA ALA PRO PHE SER GLY TRP TYR MET SER THR GLU          
SEQRES  26 B  444  ILE GLY THR ARG ASN LEU CYS ASP PRO HIS ARG TYR ASN          
SEQRES  27 B  444  ILE LEU GLU ASP VAL ALA VAL CYS MET ASP LEU ASP THR          
SEQRES  28 B  444  ARG THR THR SER SER LEU TRP LYS ASP LYS ALA ALA VAL          
SEQRES  29 B  444  GLU ILE ASN LEU ALA VAL LEU HIS SER PHE GLN LEU ALA          
SEQRES  30 B  444  LYS VAL THR ILE VAL ASP HIS HIS ALA ALA THR VAL SER          
SEQRES  31 B  444  PHE MET LYS HIS LEU ASP ASN GLU GLN LYS ALA ARG GLY          
SEQRES  32 B  444  GLY CYS PRO ALA ASP TRP ALA TRP ILE VAL PRO PRO ILE          
SEQRES  33 B  444  SER GLY SER LEU THR PRO VAL PHE HIS GLN GLU MET VAL          
SEQRES  34 B  444  ASN TYR ILE LEU SER PRO ALA PHE ARG TYR GLN PRO ASP          
SEQRES  35 B  444  PRO TRP                                                      
HET    HEM  A 500      43                                                       
HET    ACT  A 850       4                                                       
HET    ACT  A 860       4                                                       
HET    GOL  A 880       6                                                       
HET    CAD  A 950       3                                                       
HET    H4B  A 600      17                                                       
HET    XFH  A 800      26                                                       
HET     ZN  A 900       1                                                       
HET    HEM  B 500      43                                                       
HET    ACT  B 860       4                                                       
HET    GOL  B 880       6                                                       
HET    CAD  B 950       3                                                       
HET    H4B  B 600      17                                                       
HET    XFH  B 800      26                                                       
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETNAM     ACT ACETATE ION                                                      
HETNAM     GOL GLYCEROL                                                         
HETNAM     CAD CACODYLIC ACID                                                   
HETNAM     H4B 5,6,7,8-TETRAHYDROBIOPTERIN                                      
HETNAM     XFH 6-(2-{3-[2-(2-AMINO-6-METHYLPYRIDIN-4-YL)                        
HETNAM   2 XFH  ETHYL]PHENYL}ETHYL)-4-METHYLPYRIDIN-2-AMINE                     
HETNAM      ZN ZINC ION                                                         
HETSYN     HEM HEME                                                             
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
HETSYN     CAD HYDROXYDIMETHYLARSINE OXIDE                                      
FORMUL   3  HEM    2(C34 H32 FE N4 O4)                                          
FORMUL   4  ACT    3(C2 H3 O2 1-)                                               
FORMUL   6  GOL    2(C3 H8 O3)                                                  
FORMUL   7  CAD    2(C2 H7 AS O2)                                               
FORMUL   8  H4B    2(C9 H15 N5 O3)                                              
FORMUL   9  XFH    2(C22 H26 N4)                                                
FORMUL  10   ZN    ZN 2+                                                        
FORMUL  17  HOH   *110(H2 O)                                                    
HELIX    1   1 THR A   85  SER A   90  5                                   6    
HELIX    2   2 PRO A  121  ILE A  140  1                                  20    
HELIX    3   3 SER A  145  GLY A  163  1                                  19    
HELIX    4   4 ARG A  168  ALA A  183  1                                  16    
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 MET A  360  THR A  366  1                                   7    
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  ALA A  415  1                                  21    
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  GLN A  464  5                                  10    
HELIX   19  19 THR B   85  SER B   90  5                                   6    
HELIX   20  20 PRO B  121  ILE B  140  1                                  20    
HELIX   21  21 SER B  145  GLY B  163  1                                  19    
HELIX   22  22 ARG B  168  ASN B  182  1                                  15    
HELIX   23  23 GLY B  188  TRP B  192  5                                   5    
HELIX   24  24 SER B  205  ASN B  222  1                                  18    
HELIX   25  25 ARG B  223  ASN B  225  5                                   3    
HELIX   26  26 ASN B  269  HIS B  279  1                                  11    
HELIX   27  27 PRO B  308  VAL B  312  5                                   5    
HELIX   28  28 TRP B  324  GLY B  329  5                                   6    
HELIX   29  29 SER B  361  THR B  366  1                                   6    
HELIX   30  30 THR B  366  ASP B  371  1                                   6    
HELIX   31  31 ILE B  377  MET B  385  1                                   9    
HELIX   32  32 LEU B  395  ALA B  415  1                                  21    
HELIX   33  33 ASP B  421  GLY B  441  1                                  21    
HELIX   34  34 ASP B  446  VAL B  451  1                                   6    
HELIX   35  35 SER B  455  GLN B  464  5                                  10    
SHEET    1   A 2 ARG A  72  LYS A  74  0                                        
SHEET    2   A 2 ILE A  81  TYR A  83 -1  O  THR A  82   N  VAL A  73           
SHEET    1   B 4 GLN A 196  ASP A 199  0                                        
SHEET    2   B 4 ALA A 229  VAL A 232  1  O  ILE A 230   N  PHE A 198           
SHEET    3   B 4 PHE A 355  SER A 356 -1  O  SER A 356   N  ALA A 229           
SHEET    4   B 4 ALA A 337  VAL A 338 -1  N  VAL A 338   O  PHE A 355           
SHEET    1   C 3 ARG A 244  ILE A 245  0                                        
SHEET    2   C 3 LEU A 293  GLN A 296 -1  O  GLN A 296   N  ARG A 244           
SHEET    3   C 3 GLU A 303  PHE A 305 -1  O  PHE A 305   N  LEU A 293           
SHEET    1   D 2 GLY A 255  ARG A 257  0                                        
SHEET    2   D 2 VAL A 263  GLY A 265 -1  O  ARG A 264   N  TYR A 256           
SHEET    1   E 2 GLU A 314  PRO A 316  0                                        
SHEET    2   E 2 ARG A 331  TYR A 333 -1  O  TRP A 332   N  VAL A 315           
SHEET    1   F 3 LEU A 348  PHE A 350  0                                        
SHEET    2   F 3 LEU A 342  ILE A 345 -1  N  LEU A 343   O  PHE A 350           
SHEET    3   F 3 ALA A 474  ARG A 476 -1  O  ARG A 476   N  LEU A 342           
SHEET    1   G 2 ARG B  72  ASN B  75  0                                        
SHEET    2   G 2 SER B  80  TYR B  83 -1  O  SER B  80   N  ASN B  75           
SHEET    1   H 4 GLN B 196  ASP B 199  0                                        
SHEET    2   H 4 ALA B 229  VAL B 232  1  O  ILE B 230   N  PHE B 198           
SHEET    3   H 4 PHE B 355  SER B 356 -1  O  SER B 356   N  ALA B 229           
SHEET    4   H 4 ALA B 337  VAL B 338 -1  N  VAL B 338   O  PHE B 355           
SHEET    1   I 3 ARG B 244  ILE B 245  0                                        
SHEET    2   I 3 LEU B 293  GLN B 296 -1  O  GLN B 296   N  ARG B 244           
SHEET    3   I 3 GLU B 303  PHE B 305 -1  O  GLU B 303   N  LEU B 295           
SHEET    1   J 2 GLY B 255  ARG B 257  0                                        
SHEET    2   J 2 VAL B 263  GLY B 265 -1  O  ARG B 264   N  TYR B 256           
SHEET    1   K 2 GLU B 314  PRO B 316  0                                        
SHEET    2   K 2 ARG B 331  TYR B 333 -1  O  TRP B 332   N  VAL B 315           
SHEET    1   L 3 LEU B 348  PHE B 350  0                                        
SHEET    2   L 3 MET B 341  ILE B 345 -1  N  ILE B 345   O  LEU B 348           
SHEET    3   L 3 ALA B 474  TYR B 477 -1  O  ALA B 474   N  GLU B 344           
SHEET    1   M 2 TYR B 359  MET B 360  0                                        
SHEET    2   M 2 ILE B 419  VAL B 420  1  O  VAL B 420   N  TYR B 359           
LINK         SG  CYS A  96                ZN    ZN A 900     1555   1555  2.38  
LINK         SG  CYS A 101                ZN    ZN A 900     1555   1555  2.29  
LINK         SG  CYS A 186                FE   HEM A 500     1555   1555  2.27  
LINK        ZN    ZN A 900                 SG  CYS B  96     1555   1555  2.30  
LINK        ZN    ZN A 900                 SG  CYS B 101     1555   1555  2.27  
LINK         SG  CYS B 186                FE   HEM B 500     1555   1555  2.32  
CISPEP   1 SER A  472    PRO A  473          0         3.80                     
CISPEP   2 SER B  472    PRO B  473          0         3.04                     
SITE     1 AC1 14 TRP A 180  ALA A 183  ARG A 185  CYS A 186                    
SITE     2 AC1 14 PHE A 355  SER A 356  TRP A 358  GLU A 363                    
SITE     3 AC1 14 TRP A 449  PHE A 475  TYR A 477  H4B A 600                    
SITE     4 AC1 14 XFH A 800  HOH A1037                                          
SITE     1 AC2  4 ARG A 252  ASN A 368  ARG A 374  HOH A1048                    
SITE     1 AC3  3 TRP A 358  VAL A 420  SER A 428                               
SITE     1 AC4  3 ARG A 367  HIS A 373  H4B A 600                               
SITE     1 AC5  6 TRP A 324  CYS A 384  GLN A 437  LYS A 438                    
SITE     2 AC5  6 ALA A 439  GLY A 441                                          
SITE     1 AC6 10 SER A 104  VAL A 106  ARG A 367  ALA A 448                    
SITE     2 AC6 10 TRP A 449  HEM A 500  GOL A 880  HOH A1037                    
SITE     3 AC6 10 TRP B 447  PHE B 462                                          
SITE     1 AC7 11 PRO A 336  VAL A 338  ASN A 340  PHE A 355                    
SITE     2 AC7 11 GLY A 357  TRP A 358  TYR A 359  GLU A 363                    
SITE     3 AC7 11 TYR A 477  GLN A 478  HEM A 500                               
SITE     1 AC8  4 CYS A  96  CYS A 101  CYS B  96  CYS B 101                    
SITE     1 AC9 16 TRP B 180  ALA B 183  ARG B 185  CYS B 186                    
SITE     2 AC9 16 SER B 228  PHE B 355  SER B 356  GLY B 357                    
SITE     3 AC9 16 TRP B 358  MET B 360  GLU B 363  PHE B 475                    
SITE     4 AC9 16 TYR B 477  H4B B 600  XFH B 800  HOH B1106                    
SITE     1 BC1  4 ILE B 190  TRP B 358  VAL B 420  SER B 428                    
SITE     1 BC2  5 TRP A  76  VAL B 106  ARG B 367  HIS B 373                    
SITE     2 BC2  5 H4B B 600                                                     
SITE     1 BC3  3 TYR B  83  TRP B 324  CYS B 384                               
SITE     1 BC4  8 TRP A 447  PHE A 462  SER B 104  ARG B 367                    
SITE     2 BC4  8 ALA B 448  TRP B 449  HEM B 500  GOL B 880                    
SITE     1 BC5 11 GLN B 249  PRO B 336  VAL B 338  ASN B 340                    
SITE     2 BC5 11 GLY B 357  TRP B 358  TYR B 359  MET B 360                    
SITE     3 BC5 11 GLU B 363  TYR B 477  HEM B 500                               
CRYST1   57.928  106.708  156.901  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      0.017263  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.009371  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006373        0.00000