1OM4 - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 24-FEB-03 1OM4

TITLE STRUCTURE OF RAT NEURONAL NOS HEME DOMAIN WITH L-ARGININE BOUND

COMPND MOL_ID: 1; COMPND 2 MOLECULE: NITRIC-OXIDE SYNTHASE, BRAIN; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: SUBUNITS (A AND B), RESIDUES (299-718); 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 GENE: NOS1 OR BNOS; 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, OXIDOREDUCTASE, HEME-ENZYME

EXPDTA X-RAY DIFFRACTION

AUTHOR H.LI,P.MARTASEK,H.SHIMIZU,B.S.S.MASTERS,T.L.POULOS,C.S.RAMAN

REVDAT 3 13-JUL-11 1OM4 1 VERSN REVDAT 2 24-FEB-09 1OM4 1 VERSN REVDAT 1 11-MAR-03 1OM4 0

JRNL AUTH H.LI,P.MARTASEK,H.SHIMIZU,B.S.S.MASTERS,T.L.POULOS,C.S.RAMAN JRNL TITL STRUCTURE OF RAT NEURONAL NOS HEME DOMAIN WITH L-ARGININE JRNL TITL 2 BOUND JRNL REF TO BE PUBLISHED JRNL REFN

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH C.S.RAMAN,H.LI,P.MARTASEK,V.KRAL,B.S.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. 1.75 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 1.75 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.98 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 2231395.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.6 REMARK 3 NUMBER OF REFLECTIONS : 94697 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) : 0.220 REMARK 3 FREE R VALUE : 0.245 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 4804 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 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) : 1.75 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.81 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 8766 REMARK 3 BIN R VALUE (WORKING SET) : 0.3160 REMARK 3 BIN FREE R VALUE : 0.3140 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.70 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 529 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.014 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 6658 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 165 REMARK 3 SOLVENT ATOMS : 660 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 22.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 33.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 6.74000 REMARK 3 B22 (A**2) : 4.04000 REMARK 3 B33 (A**2) : -10.78000 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) : 0.24 REMARK 3 ESD FROM SIGMAA (A) : 0.25 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.27 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.27 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.30 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.50 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.91 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 : 0.40 REMARK 3 BSOL : 64.49 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: NULL

REMARK 4 REMARK 4 1OM4 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-FEB-03. REMARK 100 THE RCSB ID CODE IS RCSB018436.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-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 : MIRRORS 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 : 95384 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.750 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 (%) : 98.4 REMARK 200 DATA REDUNDANCY : 5.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 13.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.75 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.78 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.50 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 : 2.800 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 (%): 44.83 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.25 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 25.94500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 82.34000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 55.09500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 82.34000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.94500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 55.09500 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: 11240 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 32640 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -80.0 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 CYS A 297 REMARK 465 PRO A 298 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 GLY A 718 REMARK 465 CYS B 297 REMARK 465 PRO B 298 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: 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 -3.00 71.74 REMARK 500 ALA A 412 94.83 -68.59 REMARK 500 THR A 466 -75.20 -112.17 REMARK 500 HIS A 470 39.23 -140.87 REMARK 500 LYS A 550 -41.01 -145.44 REMARK 500 ARG A 603 -135.37 -112.33 REMARK 500 ASN A 605 71.37 34.21 REMARK 500 THR A 713 -16.46 -150.76 REMARK 500 SER B 392 -1.78 75.53 REMARK 500 THR B 466 -82.38 -116.02 REMARK 500 CYS B 582 59.61 -150.04 REMARK 500 ARG B 603 -133.19 -119.12 REMARK 500 ASP B 615 71.24 50.77 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH B1134 DISTANCE = 5.21 ANGSTROMS REMARK 525 HOH B1192 DISTANCE = 6.54 ANGSTROMS REMARK 525 HOH B1243 DISTANCE = 5.93 ANGSTROMS

REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 750 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 415 SG REMARK 620 2 HEM A 750 NA 101.6 REMARK 620 3 HEM A 750 NB 95.6 87.4 REMARK 620 4 HEM A 750 NC 100.6 157.8 89.9 REMARK 620 5 HEM A 750 ND 100.3 89.4 164.1 87.2 REMARK 620 N 1 2 3 4 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 331 SG REMARK 620 2 CYS B 331 SG 101.4 REMARK 620 3 CYS B 326 SG 103.5 112.2 REMARK 620 4 CYS A 326 SG 115.9 103.6 119.1 REMARK 620 N 1 2 3 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 101.5 REMARK 620 3 HEM B 750 NB 99.2 87.2 REMARK 620 4 HEM B 750 NC 102.0 156.5 89.0 REMARK 620 5 HEM B 750 ND 96.0 89.5 164.9 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 ZN A 900 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 860 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT B 861 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 HEM B 750 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE H4B A 760 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE H4B B 761 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ARG B 770 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ARG B 771 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 880 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL B 881

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1MO5 RELATED DB: NDB REMARK 900 STRUCTURE OF RAT NEURONAL NOS HEME DOMAIN WITH 3-BROMO-7- REMARK 900 NITROINDAZOLE BOUND

DBREF 1OM4 A 297 718 UNP P29476 NOS1_RAT 297 718 DBREF 1OM4 B 297 718 UNP P29476 NOS1_RAT 297 718

SEQRES 1 A 422 CYS PRO ARG PHE LEU LYS VAL LYS ASN TRP GLU THR ASP SEQRES 2 A 422 VAL VAL LEU THR ASP THR LEU HIS LEU LYS SER THR LEU SEQRES 3 A 422 GLU THR GLY CYS THR GLU HIS ILE CYS MET GLY SER ILE SEQRES 4 A 422 MET LEU PRO SER GLN HIS THR ARG LYS PRO GLU ASP VAL SEQRES 5 A 422 ARG THR LYS ASP GLN LEU PHE PRO LEU ALA LYS GLU PHE SEQRES 6 A 422 LEU ASP GLN TYR TYR SER SER ILE LYS ARG PHE GLY SER SEQRES 7 A 422 LYS ALA HIS MET ASP ARG LEU GLU GLU VAL ASN LYS GLU SEQRES 8 A 422 ILE GLU SER THR SER THR TYR GLN LEU LYS ASP THR GLU SEQRES 9 A 422 LEU ILE TYR GLY ALA LYS HIS ALA TRP ARG ASN ALA SER SEQRES 10 A 422 ARG CYS VAL GLY ARG ILE GLN TRP SER LYS LEU GLN VAL SEQRES 11 A 422 PHE ASP ALA ARG ASP CYS THR THR ALA HIS GLY MET PHE SEQRES 12 A 422 ASN TYR ILE CYS ASN HIS VAL LYS TYR ALA THR ASN LYS SEQRES 13 A 422 GLY ASN LEU ARG SER ALA ILE THR ILE PHE PRO GLN ARG SEQRES 14 A 422 THR ASP GLY LYS HIS ASP PHE ARG VAL TRP ASN SER GLN SEQRES 15 A 422 LEU ILE ARG TYR ALA GLY TYR LYS GLN PRO ASP GLY SER SEQRES 16 A 422 THR LEU GLY ASP PRO ALA ASN VAL GLN PHE THR GLU ILE SEQRES 17 A 422 CYS ILE GLN GLN GLY TRP LYS ALA PRO ARG GLY ARG PHE SEQRES 18 A 422 ASP VAL LEU PRO LEU LEU LEU GLN ALA ASN GLY ASN ASP SEQRES 19 A 422 PRO GLU LEU PHE GLN ILE PRO PRO GLU LEU VAL LEU GLU SEQRES 20 A 422 VAL PRO ILE ARG HIS PRO LYS PHE ASP TRP PHE LYS ASP SEQRES 21 A 422 LEU GLY LEU LYS TRP TYR GLY LEU PRO ALA VAL SER ASN SEQRES 22 A 422 MET LEU LEU GLU ILE GLY GLY LEU GLU PHE SER ALA CYS SEQRES 23 A 422 PRO PHE SER GLY TRP TYR MET GLY THR GLU ILE GLY VAL SEQRES 24 A 422 ARG ASP TYR CYS ASP ASN SER ARG TYR ASN ILE LEU GLU SEQRES 25 A 422 GLU VAL ALA LYS LYS MET ASP LEU ASP MET ARG LYS THR SEQRES 26 A 422 SER SER LEU TRP LYS ASP GLN ALA LEU VAL GLU ILE ASN SEQRES 27 A 422 ILE ALA VAL LEU TYR SER PHE GLN SER ASP LYS VAL THR SEQRES 28 A 422 ILE VAL ASP HIS HIS SER ALA THR GLU SER PHE ILE LYS SEQRES 29 A 422 HIS MET GLU ASN GLU TYR ARG CYS ARG GLY GLY CYS PRO SEQRES 30 A 422 ALA ASP TRP VAL TRP ILE VAL PRO PRO MET SER GLY SER SEQRES 31 A 422 ILE THR PRO VAL PHE HIS GLN GLU MET LEU ASN TYR ARG SEQRES 32 A 422 LEU THR PRO SER PHE GLU TYR GLN PRO ASP PRO TRP ASN SEQRES 33 A 422 THR HIS VAL TRP LYS GLY SEQRES 1 B 422 CYS PRO ARG PHE LEU LYS VAL LYS ASN TRP GLU THR ASP SEQRES 2 B 422 VAL VAL LEU THR ASP THR LEU HIS LEU LYS SER THR LEU SEQRES 3 B 422 GLU THR GLY CYS THR GLU HIS ILE CYS MET GLY SER ILE SEQRES 4 B 422 MET LEU PRO SER GLN HIS THR ARG LYS PRO GLU ASP VAL SEQRES 5 B 422 ARG THR LYS ASP GLN LEU PHE PRO LEU ALA LYS GLU PHE SEQRES 6 B 422 LEU ASP GLN TYR TYR SER SER ILE LYS ARG PHE GLY SER SEQRES 7 B 422 LYS ALA HIS MET ASP ARG LEU GLU GLU VAL ASN LYS GLU SEQRES 8 B 422 ILE GLU SER THR SER THR TYR GLN LEU LYS ASP THR GLU SEQRES 9 B 422 LEU ILE TYR GLY ALA LYS HIS ALA TRP ARG ASN ALA SER SEQRES 10 B 422 ARG CYS VAL GLY ARG ILE GLN TRP SER LYS LEU GLN VAL SEQRES 11 B 422 PHE ASP ALA ARG ASP CYS THR THR ALA HIS GLY MET PHE SEQRES 12 B 422 ASN TYR ILE CYS ASN HIS VAL LYS TYR ALA THR ASN LYS SEQRES 13 B 422 GLY ASN LEU ARG SER ALA ILE THR ILE PHE PRO GLN ARG SEQRES 14 B 422 THR ASP GLY LYS HIS ASP PHE ARG VAL TRP ASN SER GLN SEQRES 15 B 422 LEU ILE ARG TYR ALA GLY TYR LYS GLN PRO ASP GLY SER SEQRES 16 B 422 THR LEU GLY ASP PRO ALA ASN VAL GLN PHE THR GLU ILE SEQRES 17 B 422 CYS ILE GLN GLN GLY TRP LYS ALA PRO ARG GLY ARG PHE SEQRES 18 B 422 ASP VAL LEU PRO LEU LEU LEU GLN ALA ASN GLY ASN ASP SEQRES 19 B 422 PRO GLU LEU PHE GLN ILE PRO PRO GLU LEU VAL LEU GLU SEQRES 20 B 422 VAL PRO ILE ARG HIS PRO LYS PHE ASP TRP PHE LYS ASP SEQRES 21 B 422 LEU GLY LEU LYS TRP TYR GLY LEU PRO ALA VAL SER ASN SEQRES 22 B 422 MET LEU LEU GLU ILE GLY GLY LEU GLU PHE SER ALA CYS SEQRES 23 B 422 PRO PHE SER GLY TRP TYR MET GLY THR GLU ILE GLY VAL SEQRES 24 B 422 ARG ASP TYR CYS ASP ASN SER ARG TYR ASN ILE LEU GLU SEQRES 25 B 422 GLU VAL ALA LYS LYS MET ASP LEU ASP MET ARG LYS THR SEQRES 26 B 422 SER SER LEU TRP LYS ASP GLN ALA LEU VAL GLU ILE ASN SEQRES 27 B 422 ILE ALA VAL LEU TYR SER PHE GLN SER ASP LYS VAL THR SEQRES 28 B 422 ILE VAL ASP HIS HIS SER ALA THR GLU SER PHE ILE LYS SEQRES 29 B 422 HIS MET GLU ASN GLU TYR ARG CYS ARG GLY GLY CYS PRO SEQRES 30 B 422 ALA ASP TRP VAL TRP ILE VAL PRO PRO MET SER GLY SER SEQRES 31 B 422 ILE THR PRO VAL PHE HIS GLN GLU MET LEU ASN TYR ARG SEQRES 32 B 422 LEU THR PRO SER PHE GLU TYR GLN PRO ASP PRO TRP ASN SEQRES 33 B 422 THR HIS VAL TRP LYS GLY

HET ZN A 900 1 HET ACT A 860 4 HET ACT B 861 4 HET HEM A 750 43 HET HEM B 750 43 HET H4B A 760 17 HET H4B B 761 17 HET ARG B 770 12 HET ARG B 771 12 HET GOL A 880 6 HET GOL B 881 6

HETNAM ZN ZINC ION HETNAM ACT ACETATE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM H4B 5,6,7,8-TETRAHYDROBIOPTERIN HETNAM ARG ARGININE HETNAM GOL GLYCEROL

HETSYN HEM HEME HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL

FORMUL 3 ZN ZN 2+ FORMUL 4 ACT 2(C2 H3 O2 1-) FORMUL 6 HEM 2(C34 H32 FE N4 O4) FORMUL 8 H4B 2(C9 H15 N5 O3) FORMUL 10 ARG 2(C6 H15 N4 O2 1+) FORMUL 11 GOL 2(C3 H8 O3) FORMUL 13 HOH *660(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 ASP A 615 1 10 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 ASN B 411 1 15 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 GLN B 508 1 11 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 GLY B 590 VAL B 595 1 6 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 PHE A 534 N LEU A 522 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 ASP B 314 N LEU B 301 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 SHEET 1 M 2 TYR B 588 MET B 589 0 SHEET 2 M 2 ILE B 648 VAL B 649 1 O VAL B 649 N TYR B 588

LINK FE HEM A 750 SG CYS A 415 1555 1555 2.25 LINK ZN ZN A 900 SG CYS A 331 1555 1555 2.33 LINK ZN ZN A 900 SG CYS B 331 1555 1555 2.36 LINK ZN ZN A 900 SG CYS B 326 1555 1555 2.34 LINK ZN ZN A 900 SG CYS A 326 1555 1555 2.29 LINK FE HEM B 750 SG CYS B 415 1555 1555 2.25

CISPEP 1 THR A 701 PRO A 702 0 0.02 CISPEP 2 THR B 701 PRO B 702 0 -0.67

SITE 1 AC1 4 CYS A 326 CYS A 331 CYS B 326 CYS B 331 SITE 1 AC2 5 TRP A 587 VAL A 649 HOH A 972 HOH A1019 SITE 2 AC2 5 HOH A1088 SITE 1 AC3 6 TRP B 587 VAL B 649 HOH B 962 HOH B 996 SITE 2 AC3 6 HOH B1020 HOH B1063 SITE 1 AC4 17 TRP A 409 ARG A 414 CYS A 415 SER A 457 SITE 2 AC4 17 PHE A 584 SER A 585 TRP A 587 GLU A 592 SITE 3 AC4 17 TRP A 678 TYR A 706 H4B A 760 HOH A 912 SITE 4 AC4 17 HOH A 923 HOH A 935 HOH A 958 HOH A 987 SITE 5 AC4 17 ARG B 770 SITE 1 AC5 17 TRP B 409 ARG B 414 CYS B 415 SER B 457 SITE 2 AC5 17 PHE B 584 SER B 585 TRP B 587 GLU B 592 SITE 3 AC5 17 TRP B 678 TYR B 706 H4B B 761 ARG B 771 SITE 4 AC5 17 HOH B 883 HOH B 907 HOH B 937 HOH B 941 SITE 5 AC5 17 HOH B1002 SITE 1 AC6 16 SER A 334 MET A 336 ARG A 596 VAL A 677 SITE 2 AC6 16 TRP A 678 HEM A 750 HOH A 901 HOH A 918 SITE 3 AC6 16 HOH A 934 HOH A 935 HOH A 994 TRP B 676 SITE 4 AC6 16 PHE B 691 HIS B 692 GLN B 693 GLU B 694 SITE 1 AC7 14 TRP A 676 PHE A 691 HIS A 692 GLU A 694 SITE 2 AC7 14 SER B 334 ARG B 596 VAL B 677 TRP B 678 SITE 3 AC7 14 HEM B 750 HOH B 886 HOH B 907 HOH B 922 SITE 4 AC7 14 HOH B 933 HOH B1197 SITE 1 AC8 10 GLN A 478 TYR A 562 TRP A 587 TYR A 588 SITE 2 AC8 10 GLU A 592 ASP A 597 HEM A 750 HOH B 901 SITE 3 AC8 10 HOH B 942 HOH B1255 SITE 1 AC9 10 GLN B 478 TYR B 562 TRP B 587 TYR B 588 SITE 2 AC9 10 GLU B 592 ASP B 597 HEM B 750 HOH B 893 SITE 3 AC9 10 HOH B 906 HOH B1075 SITE 1 BC1 5 LYS A 319 ARG A 669 THR A 701 HOH A 965 SITE 2 BC1 5 HOH A1091 SITE 1 BC2 5 LEU B 316 GLN B 364 ARG B 669 HOH B 945 SITE 2 BC2 5 HOH B1160

CRYST1 51.890 110.190 164.680 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 0.019272 0.000000 0.000000 0.00000

SCALE2 0.000000 0.009075 0.000000 0.00000

SCALE3 0.000000 0.000000 0.006072 0.00000