HEADER    OXIDOREDUCTASE                          11-JUN-02   1LZX              
TITLE     RAT NEURONAL NOS HEME DOMAIN WITH NG-HYDROXY-L-ARGININE BOUND         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: NITRIC-OXIDE SYNTHASE;                                     
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: HEME DOMAIN;                                               
COMPND   5 SYNONYM: NOS, TYPE I, NEURONAL NOS, N-NOS, NNOS, CONSTITUTIVE NOS,   
COMPND   6 NC-NOS, BNOS;                                                        
COMPND   7 EC: 1.14.13.39;                                                      
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS;                              
SOURCE   3 ORGANISM_COMMON: NORWAY RAT;                                         
SOURCE   4 ORGANISM_TAXID: 10116;                                               
SOURCE   5 ORGAN: BRAIN;                                                        
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PCWORI                                    
KEYWDS    NITRIC OXIDE SYNTHASE, OXYDOREDUCTASE, HEME-ENZYME, OXIDOREDUCTASE    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.LI,H.SHIMIZU,M.FLINSPACH,J.JAMAL,W.YANG,M.XIAN,T.CAI,E.Z.WEN,Q.JIA, 
AUTHOR   2 P.G.WANG,T.L.POULOS                                                  
REVDAT   4   14-FEB-24 1LZX    1       REMARK LINK                              
REVDAT   3   13-OCT-10 1LZX    1       REMARK                                   
REVDAT   2   24-FEB-09 1LZX    1       VERSN                                    
REVDAT   1   27-NOV-02 1LZX    0                                                
JRNL        AUTH   H.LI,H.SHIMIZU,M.FLINSPACH,J.JAMAL,W.YANG,M.XIAN,T.CAI,      
JRNL        AUTH 2 E.Z.WEN,Q.JIA,P.G.WANG,T.L.POULOS                            
JRNL        TITL   THE NOVEL BINDING MODE OF N-ALKYL-N'-HYDROXYGUANIDINE TO     
JRNL        TITL 2 NEURONAL NITRIC OXIDE SYNTHASE PROVIDES MECHANISTIC INSIGHTS 
JRNL        TITL 3 INTO NO BIOSYNTHESIS                                         
JRNL        REF    BIOCHEMISTRY                  V.  41 13868 2002              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   12437343                                                     
JRNL        DOI    10.1021/BI020417C                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   C.S.RAMAN,H.LI,P.MARTASEK,V.KRAL,B.S.MASTERS,T.L.POULOS      
REMARK   1  TITL   CRYSTAL STRUCTURE OF CONSTITUTIVE ENDOTHELIAL NITRIC OXIDE   
REMARK   1  TITL 2 SYNTHASE: A PARADIGM FOR PTERIN FUNCTION INVOLVING A NOVEL   
REMARK   1  TITL 3 METAL CENTER                                                 
REMARK   1  REF    CELL(CAMBRIDGE,MASS.)         V.  95   939 1998              
REMARK   1  REFN                   ISSN 0092-8674                               
REMARK   1  DOI    10.1016/S0092-8674(00)81718-3                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 31.58                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 95.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 62363                          
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 SET) : 0.226                           
REMARK   3   FREE R VALUE                     : 0.256                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3105                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.005                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 10                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.07                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 89.00                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 5443                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3400                       
REMARK   3   BIN FREE R VALUE                    : 0.3560                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.00                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 288                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.021                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 6653                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 155                                     
REMARK   3   SOLVENT ATOMS            : 469                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 31.70                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 43.50                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 9.14000                                              
REMARK   3    B22 (A**2) : 6.43000                                              
REMARK   3    B33 (A**2) : -15.57000                                            
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.28                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.34                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.33                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.37                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 22.70                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.960                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.39                                                 
REMARK   3   BSOL        : 57.77                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : HETERO.PAR                                     
REMARK   3  PARAMETER FILE  4  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  3   : HETERO.TOP                                     
REMARK   3  TOPOLOGY FILE  4   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: RESIDUES 339-349 IN SUBUNIT A AND         
REMARK   3  339-347 IN SUBUNIT B ARE DISORDERED AND                             
REMARK   3  THEREFORE ARE NOT INCLUDED IN THE MODEL.                            
REMARK   4                                                                      
REMARK   4 1LZX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-JUN-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000016425.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-JAN-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.0                                
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) : 1.08                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : MIRROR                             
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 62410                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
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     (%) : 96.1                               
REMARK 200  DATA REDUNDANCY                : 3.300                              
REMARK 200  R MERGE                    (I) : 0.06900                            
REMARK 200  R SYM                      (I) : 0.06900                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 8.8000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.03                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 92.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.90                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.78000                            
REMARK 200  R SYM FOR SHELL            (I) : 0.78000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.100                              
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   (%): 49.54                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.44                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG4000, MES, AMMONIUM ACETATE, PH       
REMARK 280  6.0, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 280K                
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       25.96500            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       82.36500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       55.37000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       82.36500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       25.96500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       55.37000            
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: 9470 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 33590 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -81.0 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   339                                                      
REMARK 465     GLN A   340                                                      
REMARK 465     HIS A   341                                                      
REMARK 465     THR A   342                                                      
REMARK 465     ARG A   343                                                      
REMARK 465     LYS A   344                                                      
REMARK 465     PRO A   345                                                      
REMARK 465     GLU A   346                                                      
REMARK 465     ASP A   347                                                      
REMARK 465     VAL A   348                                                      
REMARK 465     ARG A   349                                                      
REMARK 465     LYS A   717                                                      
REMARK 465     SER B   339                                                      
REMARK 465     GLN B   340                                                      
REMARK 465     HIS B   341                                                      
REMARK 465     THR B   342                                                      
REMARK 465     ARG B   343                                                      
REMARK 465     LYS B   344                                                      
REMARK 465     PRO B   345                                                      
REMARK 465     GLU B   346                                                      
REMARK 465     ASP B   347                                                      
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 A  1096     O    HOH A  1097              2.19            
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    CYS A 326   CA  -  CB  -  SG  ANGL. DEV. =   7.1 DEGREES          
REMARK 500    CYS B 326   CA  -  CB  -  SG  ANGL. DEV. =  10.8 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    ASP A 309      -11.07     73.22                                   
REMARK 500    THR A 466      -87.07   -117.77                                   
REMARK 500    GLN A 507       -8.84    -49.62                                   
REMARK 500    ASN A 529      175.98    -59.54                                   
REMARK 500    LYS A 550      -33.38   -155.81                                   
REMARK 500    ARG A 603     -133.16   -116.91                                   
REMARK 500    ASN A 605       73.48     23.16                                   
REMARK 500    LEU B 337       83.10   -152.01                                   
REMARK 500    SER B 392      -17.36     79.57                                   
REMARK 500    THR B 393     -159.30   -135.11                                   
REMARK 500    THR B 466      -82.59   -112.13                                   
REMARK 500    CYS B 582       58.37   -149.70                                   
REMARK 500    VAL B 595      -62.10    -94.51                                   
REMARK 500    ARG B 603     -139.31   -121.09                                   
REMARK 500    PRO B 682        5.06    -69.89                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 900  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 326   SG                                                     
REMARK 620 2 CYS A 331   SG  111.8                                              
REMARK 620 3 CYS B 326   SG  124.0 102.1                                        
REMARK 620 4 CYS B 331   SG  102.9 102.1 112.1                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM A 750  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 415   SG                                                     
REMARK 620 2 HEM A 750   NA  101.3                                              
REMARK 620 3 HEM A 750   NB   94.3  88.1                                        
REMARK 620 4 HEM A 750   NC  100.7 157.9  89.5                                  
REMARK 620 5 HEM A 750   ND   97.8  89.1 167.9  88.7                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM B 750  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B 415   SG                                                     
REMARK 620 2 HEM B 750   NA  102.5                                              
REMARK 620 3 HEM B 750   NB   96.9  87.9                                        
REMARK 620 4 HEM B 750   NC   98.6 158.9  89.8                                  
REMARK 620 5 HEM B 750   ND   95.6  89.6 167.6  88.2                            
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 ACT A 860                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT B 1860                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 900                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 750                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE H4B A 760                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HAR A 770                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 750                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE H4B B 1760                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HAR B 1770                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1LZZ   RELATED DB: PDB                                   
REMARK 900 RAT NEURONAL NOS HEME DOMAIN WITH N-ISOPROPYL-N'-HYDROXYGUANIDINE    
REMARK 900 BOUND                                                                
REMARK 900 RELATED ID: 1M00   RELATED DB: PDB                                   
REMARK 900 RAT NEURONAL NOS HEME DOMAIN WITH N-BUTYL-N'-HYDROXYGUANIDINE BOUND  
DBREF  1LZX A  299   717  UNP    P29476   NOS1_RAT       299    717             
DBREF  1LZX B  299   717  UNP    P29476   NOS1_RAT       299    717             
SEQRES   1 A  419  ARG PHE LEU LYS VAL LYS ASN TRP GLU THR ASP VAL VAL          
SEQRES   2 A  419  LEU THR ASP THR LEU HIS LEU LYS SER THR LEU GLU THR          
SEQRES   3 A  419  GLY CYS THR GLU HIS ILE CYS MET GLY SER ILE MET LEU          
SEQRES   4 A  419  PRO SER GLN HIS THR ARG LYS PRO GLU ASP VAL ARG THR          
SEQRES   5 A  419  LYS ASP GLN LEU PHE PRO LEU ALA LYS GLU PHE LEU ASP          
SEQRES   6 A  419  GLN TYR TYR SER SER ILE LYS ARG PHE GLY SER LYS ALA          
SEQRES   7 A  419  HIS MET ASP ARG LEU GLU GLU VAL ASN LYS GLU ILE GLU          
SEQRES   8 A  419  SER THR SER THR TYR GLN LEU LYS ASP THR GLU LEU ILE          
SEQRES   9 A  419  TYR GLY ALA LYS HIS ALA TRP ARG ASN ALA SER ARG CYS          
SEQRES  10 A  419  VAL GLY ARG ILE GLN TRP SER LYS LEU GLN VAL PHE ASP          
SEQRES  11 A  419  ALA ARG ASP CYS THR THR ALA HIS GLY MET PHE ASN TYR          
SEQRES  12 A  419  ILE CYS ASN HIS VAL LYS TYR ALA THR ASN LYS GLY ASN          
SEQRES  13 A  419  LEU ARG SER ALA ILE THR ILE PHE PRO GLN ARG THR ASP          
SEQRES  14 A  419  GLY LYS HIS ASP PHE ARG VAL TRP ASN SER GLN LEU ILE          
SEQRES  15 A  419  ARG TYR ALA GLY TYR LYS GLN PRO ASP GLY SER THR LEU          
SEQRES  16 A  419  GLY ASP PRO ALA ASN VAL GLN PHE THR GLU ILE CYS ILE          
SEQRES  17 A  419  GLN GLN GLY TRP LYS ALA PRO ARG GLY ARG PHE ASP VAL          
SEQRES  18 A  419  LEU PRO LEU LEU LEU GLN ALA ASN GLY ASN ASP PRO GLU          
SEQRES  19 A  419  LEU PHE GLN ILE PRO PRO GLU LEU VAL LEU GLU VAL PRO          
SEQRES  20 A  419  ILE ARG HIS PRO LYS PHE ASP TRP PHE LYS ASP LEU GLY          
SEQRES  21 A  419  LEU LYS TRP TYR GLY LEU PRO ALA VAL SER ASN MET LEU          
SEQRES  22 A  419  LEU GLU ILE GLY GLY LEU GLU PHE SER ALA CYS PRO PHE          
SEQRES  23 A  419  SER GLY TRP TYR MET GLY THR GLU ILE GLY VAL ARG ASP          
SEQRES  24 A  419  TYR CYS ASP ASN SER ARG TYR ASN ILE LEU GLU GLU VAL          
SEQRES  25 A  419  ALA LYS LYS MET ASP LEU ASP MET ARG LYS THR SER SER          
SEQRES  26 A  419  LEU TRP LYS ASP GLN ALA LEU VAL GLU ILE ASN ILE ALA          
SEQRES  27 A  419  VAL LEU TYR SER PHE GLN SER ASP LYS VAL THR ILE VAL          
SEQRES  28 A  419  ASP HIS HIS SER ALA THR GLU SER PHE ILE LYS HIS MET          
SEQRES  29 A  419  GLU ASN GLU TYR ARG CYS ARG GLY GLY CYS PRO ALA ASP          
SEQRES  30 A  419  TRP VAL TRP ILE VAL PRO PRO MET SER GLY SER ILE THR          
SEQRES  31 A  419  PRO VAL PHE HIS GLN GLU MET LEU ASN TYR ARG LEU THR          
SEQRES  32 A  419  PRO SER PHE GLU TYR GLN PRO ASP PRO TRP ASN THR HIS          
SEQRES  33 A  419  VAL TRP LYS                                                  
SEQRES   1 B  419  ARG PHE LEU LYS VAL LYS ASN TRP GLU THR ASP VAL VAL          
SEQRES   2 B  419  LEU THR ASP THR LEU HIS LEU LYS SER THR LEU GLU THR          
SEQRES   3 B  419  GLY CYS THR GLU HIS ILE CYS MET GLY SER ILE MET LEU          
SEQRES   4 B  419  PRO SER GLN HIS THR ARG LYS PRO GLU ASP VAL ARG THR          
SEQRES   5 B  419  LYS ASP GLN LEU PHE PRO LEU ALA LYS GLU PHE LEU ASP          
SEQRES   6 B  419  GLN TYR TYR SER SER ILE LYS ARG PHE GLY SER LYS ALA          
SEQRES   7 B  419  HIS MET ASP ARG LEU GLU GLU VAL ASN LYS GLU ILE GLU          
SEQRES   8 B  419  SER THR SER THR TYR GLN LEU LYS ASP THR GLU LEU ILE          
SEQRES   9 B  419  TYR GLY ALA LYS HIS ALA TRP ARG ASN ALA SER ARG CYS          
SEQRES  10 B  419  VAL GLY ARG ILE GLN TRP SER LYS LEU GLN VAL PHE ASP          
SEQRES  11 B  419  ALA ARG ASP CYS THR THR ALA HIS GLY MET PHE ASN TYR          
SEQRES  12 B  419  ILE CYS ASN HIS VAL LYS TYR ALA THR ASN LYS GLY ASN          
SEQRES  13 B  419  LEU ARG SER ALA ILE THR ILE PHE PRO GLN ARG THR ASP          
SEQRES  14 B  419  GLY LYS HIS ASP PHE ARG VAL TRP ASN SER GLN LEU ILE          
SEQRES  15 B  419  ARG TYR ALA GLY TYR LYS GLN PRO ASP GLY SER THR LEU          
SEQRES  16 B  419  GLY ASP PRO ALA ASN VAL GLN PHE THR GLU ILE CYS ILE          
SEQRES  17 B  419  GLN GLN GLY TRP LYS ALA PRO ARG GLY ARG PHE ASP VAL          
SEQRES  18 B  419  LEU PRO LEU LEU LEU GLN ALA ASN GLY ASN ASP PRO GLU          
SEQRES  19 B  419  LEU PHE GLN ILE PRO PRO GLU LEU VAL LEU GLU VAL PRO          
SEQRES  20 B  419  ILE ARG HIS PRO LYS PHE ASP TRP PHE LYS ASP LEU GLY          
SEQRES  21 B  419  LEU LYS TRP TYR GLY LEU PRO ALA VAL SER ASN MET LEU          
SEQRES  22 B  419  LEU GLU ILE GLY GLY LEU GLU PHE SER ALA CYS PRO PHE          
SEQRES  23 B  419  SER GLY TRP TYR MET GLY THR GLU ILE GLY VAL ARG ASP          
SEQRES  24 B  419  TYR CYS ASP ASN SER ARG TYR ASN ILE LEU GLU GLU VAL          
SEQRES  25 B  419  ALA LYS LYS MET ASP LEU ASP MET ARG LYS THR SER SER          
SEQRES  26 B  419  LEU TRP LYS ASP GLN ALA LEU VAL GLU ILE ASN ILE ALA          
SEQRES  27 B  419  VAL LEU TYR SER PHE GLN SER ASP LYS VAL THR ILE VAL          
SEQRES  28 B  419  ASP HIS HIS SER ALA THR GLU SER PHE ILE LYS HIS MET          
SEQRES  29 B  419  GLU ASN GLU TYR ARG CYS ARG GLY GLY CYS PRO ALA ASP          
SEQRES  30 B  419  TRP VAL TRP ILE VAL PRO PRO MET SER GLY SER ILE THR          
SEQRES  31 B  419  PRO VAL PHE HIS GLN GLU MET LEU ASN TYR ARG LEU THR          
SEQRES  32 B  419  PRO SER PHE GLU TYR GLN PRO ASP PRO TRP ASN THR HIS          
SEQRES  33 B  419  VAL TRP LYS                                                  
HET    ACT  A 860       4                                                       
HET     ZN  A 900       1                                                       
HET    HEM  A 750      43                                                       
HET    H4B  A 760      17                                                       
HET    HAR  A 770      13                                                       
HET    ACT  B1860       4                                                       
HET    HEM  B 750      43                                                       
HET    H4B  B1760      17                                                       
HET    HAR  B1770      13                                                       
HETNAM     ACT ACETATE ION                                                      
HETNAM      ZN ZINC ION                                                         
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETNAM     H4B 5,6,7,8-TETRAHYDROBIOPTERIN                                      
HETNAM     HAR N-OMEGA-HYDROXY-L-ARGININE                                       
HETSYN     HEM HEME                                                             
FORMUL   3  ACT    2(C2 H3 O2 1-)                                               
FORMUL   4   ZN    ZN 2+                                                        
FORMUL   5  HEM    2(C34 H32 FE N4 O4)                                          
FORMUL   6  H4B    2(C9 H15 N5 O3)                                              
FORMUL   7  HAR    2(C6 H14 N4 O3)                                              
FORMUL  12  HOH   *469(H2 O)                                                    
HELIX    1   1 THR A  315  SER A  320  5                                   6    
HELIX    2   2 THR A  350  ILE A  369  1                                  20    
HELIX    3   3 SER A  374  SER A  392  1                                  19    
HELIX    4   4 LYS A  397  ASN A  411  1                                  15    
HELIX    5   5 GLY A  417  TRP A  421  5                                   5    
HELIX    6   6 THR A  434  ASN A  451  1                                  18    
HELIX    7   7 LYS A  452  ASN A  454  5                                   3    
HELIX    8   8 ASN A  498  GLN A  507  1                                  10    
HELIX    9   9 PRO A  537  VAL A  541  5                                   5    
HELIX   10  10 TRP A  553  GLY A  558  5                                   6    
HELIX   11  11 MET A  589  VAL A  595  1                                   7    
HELIX   12  12 VAL A  595  ASP A  600  1                                   6    
HELIX   13  13 ILE A  606  MET A  614  1                                   9    
HELIX   14  14 LYS A  620  SER A  623  5                                   4    
HELIX   15  15 LEU A  624  ASP A  644  1                                  21    
HELIX   16  16 ASP A  650  GLY A  670  1                                  21    
HELIX   17  17 ASP A  675  VAL A  680  1                                   6    
HELIX   18  18 SER A  684  GLN A  693  5                                  10    
HELIX   19  19 ASP A  709  THR A  713  5                                   5    
HELIX   20  20 THR B  315  SER B  320  5                                   6    
HELIX   21  21 THR B  350  ILE B  369  1                                  20    
HELIX   22  22 SER B  374  SER B  392  1                                  19    
HELIX   23  23 LYS B  397  ALA B  412  1                                  16    
HELIX   24  24 GLY B  417  TRP B  421  5                                   5    
HELIX   25  25 THR B  434  ASN B  451  1                                  18    
HELIX   26  26 LYS B  452  ASN B  454  5                                   3    
HELIX   27  27 ASN B  498  GLY B  509  1                                  12    
HELIX   28  28 PRO B  537  VAL B  541  5                                   5    
HELIX   29  29 TRP B  553  GLY B  558  5                                   6    
HELIX   30  30 MET B  589  VAL B  595  1                                   7    
HELIX   31  31 VAL B  595  ASP B  600  1                                   6    
HELIX   32  32 ILE B  606  MET B  614  1                                   9    
HELIX   33  33 LYS B  620  SER B  623  5                                   4    
HELIX   34  34 LEU B  624  ASP B  644  1                                  21    
HELIX   35  35 ASP B  650  GLY B  670  1                                  21    
HELIX   36  36 ASP B  675  VAL B  680  1                                   6    
HELIX   37  37 SER B  684  GLN B  693  5                                  10    
HELIX   38  38 ASP B  709  THR B  713  5                                   5    
SHEET    1   A 2 LEU A 301  LYS A 304  0                                        
SHEET    2   A 2 VAL A 311  ASP A 314 -1  O  ASP A 314   N  LEU A 301           
SHEET    1   B 3 GLN A 425  ASP A 428  0                                        
SHEET    2   B 3 ALA A 458  ILE A 461  1  O  ILE A 459   N  PHE A 427           
SHEET    3   B 3 PHE A 584  SER A 585 -1  O  SER A 585   N  ALA A 458           
SHEET    1   C 3 ARG A 473  VAL A 474  0                                        
SHEET    2   C 3 LEU A 522  GLN A 525 -1  O  GLN A 525   N  ARG A 473           
SHEET    3   C 3 GLU A 532  PHE A 534 -1  O  GLU A 532   N  LEU A 524           
SHEET    1   D 2 GLY A 484  LYS A 486  0                                        
SHEET    2   D 2 THR A 492  GLY A 494 -1  O  LEU A 493   N  TYR A 485           
SHEET    1   E 2 GLU A 543  PRO A 545  0                                        
SHEET    2   E 2 LYS A 560  TYR A 562 -1  O  TRP A 561   N  VAL A 544           
SHEET    1   F 3 LEU A 577  PHE A 579  0                                        
SHEET    2   F 3 LEU A 571  ILE A 574 -1  N  LEU A 572   O  PHE A 579           
SHEET    3   F 3 SER A 703  GLU A 705 -1  O  GLU A 705   N  LEU A 571           
SHEET    1   G 2 LEU B 301  LYS B 304  0                                        
SHEET    2   G 2 VAL B 311  ASP B 314 -1  O  LEU B 312   N  VAL B 303           
SHEET    1   H 4 GLN B 425  ASP B 428  0                                        
SHEET    2   H 4 ALA B 458  ILE B 461  1  O  ILE B 459   N  PHE B 427           
SHEET    3   H 4 PHE B 584  SER B 585 -1  O  SER B 585   N  ALA B 458           
SHEET    4   H 4 ALA B 566  VAL B 567 -1  N  VAL B 567   O  PHE B 584           
SHEET    1   I 3 ARG B 473  VAL B 474  0                                        
SHEET    2   I 3 LEU B 522  GLN B 525 -1  O  GLN B 525   N  ARG B 473           
SHEET    3   I 3 GLU B 532  PHE B 534 -1  O  PHE B 534   N  LEU B 522           
SHEET    1   J 2 GLY B 484  LYS B 486  0                                        
SHEET    2   J 2 THR B 492  GLY B 494 -1  O  LEU B 493   N  TYR B 485           
SHEET    1   K 2 GLU B 543  PRO B 545  0                                        
SHEET    2   K 2 LYS B 560  TYR B 562 -1  O  TRP B 561   N  VAL B 544           
SHEET    1   L 3 LEU B 577  PHE B 579  0                                        
SHEET    2   L 3 LEU B 571  ILE B 574 -1  N  LEU B 572   O  PHE B 579           
SHEET    3   L 3 SER B 703  GLU B 705 -1  O  GLU B 705   N  LEU B 571           
LINK         SG  CYS A 326                ZN    ZN A 900     1555   1555  2.30  
LINK         SG  CYS A 331                ZN    ZN A 900     1555   1555  2.32  
LINK         SG  CYS A 415                FE   HEM A 750     1555   1555  2.24  
LINK        ZN    ZN A 900                 SG  CYS B 326     1555   1555  2.31  
LINK        ZN    ZN A 900                 SG  CYS B 331     1555   1555  2.33  
LINK         SG  CYS B 415                FE   HEM B 750     1555   1555  2.25  
CISPEP   1 THR A  701    PRO A  702          0        -0.20                     
CISPEP   2 THR B  701    PRO B  702          0        -0.05                     
SITE     1 AC1  5 TRP A 587  VAL A 649  HEM A 750  HOH A 971                    
SITE     2 AC1  5 HOH A1096                                                     
SITE     1 AC2  5 GLN B 420  TRP B 587  VAL B 649  HOH B2084                    
SITE     2 AC2  5 HOH B2085                                                     
SITE     1 AC3  4 CYS A 326  CYS A 331  CYS B 326  CYS B 331                    
SITE     1 AC4 18 TRP A 409  ARG A 414  CYS A 415  SER A 457                    
SITE     2 AC4 18 PHE A 584  SER A 585  TRP A 587  GLU A 592                    
SITE     3 AC4 18 TRP A 678  TYR A 706  H4B A 760  HAR A 770                    
SITE     4 AC4 18 ACT A 860  HOH A 907  HOH A 909  HOH A 926                    
SITE     5 AC4 18 HOH A 943  HOH A1020                                          
SITE     1 AC5 15 SER A 334  ARG A 596  VAL A 677  TRP A 678                    
SITE     2 AC5 15 HEM A 750  HOH A 901  HOH A 909  HOH A 924                    
SITE     3 AC5 15 HOH A 947  HOH A1080  TRP B 676  PHE B 691                    
SITE     4 AC5 15 HIS B 692  GLN B 693  GLU B 694                               
SITE     1 AC6 12 GLN A 478  TYR A 562  VAL A 567  GLY A 586                    
SITE     2 AC6 12 TRP A 587  TYR A 588  GLU A 592  ASP A 597                    
SITE     3 AC6 12 HEM A 750  HOH A 904  HOH A 908  HOH A 974                    
SITE     1 AC7 16 TRP B 409  CYS B 415  SER B 457  PHE B 584                    
SITE     2 AC7 16 SER B 585  TRP B 587  GLU B 592  TRP B 678                    
SITE     3 AC7 16 TYR B 706  H4B B1760  HAR B1770  HOH B1862                    
SITE     4 AC7 16 HOH B1866  HOH B1896  HOH B1900  HOH B2019                    
SITE     1 AC8 13 TRP A 676  PHE A 691  HIS A 692  SER B 334                    
SITE     2 AC8 13 MET B 336  ARG B 596  VAL B 677  TRP B 678                    
SITE     3 AC8 13 HEM B 750  HOH B1866  HOH B1869  HOH B1902                    
SITE     4 AC8 13 HOH B1920                                                     
SITE     1 AC9 11 GLN B 478  TYR B 562  PRO B 565  GLY B 586                    
SITE     2 AC9 11 TRP B 587  TYR B 588  GLU B 592  ASP B 597                    
SITE     3 AC9 11 HEM B 750  HOH B1907  HOH B1943                               
CRYST1   51.930  110.740  164.730  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      0.019257  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.009030  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006071        0.00000