HEADER OXIDOREDUCTASE 23-MAY-00 1F26 TITLE CRYSTAL STRUCTURE OF NO COMPLEX OF THR243VAL MUTANTS OF CYTOCHROME TITLE 2 P450NOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: NITRIC OXIDE REDUCTASE; COMPND 3 CHAIN: A; COMPND 4 EC: 1.7.99.7; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: FUSARIUM OXYSPORUM; SOURCE 3 ORGANISM_TAXID: 5507; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI K12; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 83333; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: K12; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PRSET-C KEYWDS NITRIC OXIDE REDUCTASE, CYTOCHROME P450NOR, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR H.SHIMIZU,S.-Y.PARK REVDAT 6 29-MAY-24 1F26 1 REMARK REVDAT 5 10-NOV-21 1F26 1 REMARK SEQADV LINK REVDAT 4 13-JUL-11 1F26 1 VERSN REVDAT 3 24-FEB-09 1F26 1 VERSN REVDAT 2 07-JAN-03 1F26 1 REMARK REVDAT 1 23-NOV-00 1F26 0 JRNL AUTH E.OBAYASHI,H.SHIMIZU,S.Y.PARK,H.SHOUN,Y.SHIRO JRNL TITL MUTATION EFFECTS OF A CONSERVED THREONINE (THR243) OF JRNL TITL 2 CYTOCHROME P450NOR ON ITS STRUCTURE AND FUNCTION. JRNL REF J.INORG.BIOCHEM. V. 82 103 2000 JRNL REFN ISSN 0162-0134 JRNL PMID 11132616 JRNL DOI 10.1016/S0162-0134(00)00161-6 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH H.SHIMIZU,E.OBAYASHI,Y.GOMI,H.ARAKAWA,S.-Y.PARK,H.NAKAMURA, REMARK 1 AUTH 2 S.ADACHI,H.SHOUN,Y.SHIRO REMARK 1 TITL PROTON DELIVERY IN NO REDUCTION BY FUNGAL NITRIC-OXIDE REMARK 1 TITL 2 REDUCTASE. CRYOGENIC CRYSTALLOGRAPHY, SPECTROSCOPY, AND REMARK 1 TITL 3 KINETICS OF FERRIC-NO COMPLEXES OF WILD-TYPE AND MUTANT REMARK 1 TITL 4 ENZYMES 1997 REMARK 1 REF J.BIOL.CHEM. V. 275 4816 2000 REMARK 1 REFN ISSN 0021-9258 REMARK 1 DOI 10.1074/JBC.275.7.4816 REMARK 1 REFERENCE 2 REMARK 1 AUTH S.-Y.PARK,H.SHIMIZU,S.ADACHI,A.NAKAGAWA,I.TANAKA,K.NAKAHARA, REMARK 1 AUTH 2 H.SHOUN,E.OBAYASHI,H.NAKAMURA,T.IIZUKA,Y.SHIRO REMARK 1 TITL CRYSTAL STRUCTURE OF NITRIC OXIDE REDUCTASE FROM REMARK 1 TITL 2 DENITRIFYING FUNGUS FUSARIUM OXYSPORUM REMARK 1 REF NAT.STRUCT.BIOL. V. 4 827 1997 REMARK 1 REFN ISSN 1072-8368 REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.139 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.207 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 3785 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 75569 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3099 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 51 REMARK 3 SOLVENT ATOMS : 632 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : NULL REMARK 3 ANGLE DISTANCES (A) : NULL REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : SHELX-97 REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1F26 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 06-JUN-00. REMARK 100 THE DEPOSITION ID IS D_1000011152. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-OCT-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SPRING-8 REMARK 200 BEAMLINE : BL44B2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.6 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 72706 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 REMARK 200 RESOLUTION RANGE LOW (A) : 10.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.5 REMARK 200 DATA REDUNDANCY : 8.100 REMARK 200 R MERGE (I) : 0.04400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.48 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.80 REMARK 200 R MERGE FOR SHELL (I) : 0.13000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.98 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.16 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG3350, MES, GLYCEROL, PH 7.0, VAPOR REMARK 280 DIFFUSION, SITTING DROP, TEMPERATURE 293K 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 27.28350 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 42.76400 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 40.96900 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 42.76400 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 27.28350 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 40.96900 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 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 ALA A 2 REMARK 465 SER A 3 REMARK 465 GLY A 4 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 26 NH1 - CZ - NH2 ANGL. DEV. = -8.4 DEGREES REMARK 500 ARG A 26 NE - CZ - NH2 ANGL. DEV. = 8.2 DEGREES REMARK 500 ARG A 174 NE - CZ - NH2 ANGL. DEV. = 5.3 DEGREES REMARK 500 ARG A 202 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 ASP A 349 CB - CG - OD1 ANGL. DEV. = 6.4 DEGREES REMARK 500 ARG A 392 CD - NE - CZ ANGL. DEV. = 11.6 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 ASN A 29 65.24 -166.98 REMARK 500 PHE A 144 -60.03 -152.37 REMARK 500 ASN A 268 82.77 -153.64 REMARK 500 CYS A 352 121.04 -39.87 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 HEM A 501 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 352 SG REMARK 620 2 HEM A 501 NA 94.8 REMARK 620 3 HEM A 501 NB 92.2 89.7 REMARK 620 4 HEM A 501 NC 85.2 179.4 89.7 REMARK 620 5 HEM A 501 ND 92.9 92.0 174.5 88.5 REMARK 620 6 NO A 502 N 177.6 86.4 89.9 93.7 85.0 REMARK 620 N 1 2 3 4 5 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 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO A 502 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 503 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1F24 RELATED DB: PDB REMARK 900 1F24 CONTAINS CYTOCHROME P450NOR (THR243ALA). REMARK 900 RELATED ID: 1F25 RELATED DB: PDB REMARK 900 1F25 CONTAINS CYTOCHROME P450NOR (THR243ASN). DBREF 1F26 A 2 403 UNP P23295 NOR_FUSOX 1 402 SEQADV 1F26 VAL A 243 UNP P23295 THR 242 ENGINEERED MUTATION SEQRES 1 A 402 ALA SER GLY ALA PRO SER PHE PRO PHE SER ARG ALA SER SEQRES 2 A 402 GLY PRO GLU PRO PRO ALA GLU PHE ALA LYS LEU ARG ALA SEQRES 3 A 402 THR ASN PRO VAL SER GLN VAL LYS LEU PHE ASP GLY SER SEQRES 4 A 402 LEU ALA TRP LEU VAL THR LYS HIS LYS ASP VAL CYS PHE SEQRES 5 A 402 VAL ALA THR SER GLU LYS LEU SER LYS VAL ARG THR ARG SEQRES 6 A 402 GLN GLY PHE PRO GLU LEU SER ALA SER GLY LYS GLN ALA SEQRES 7 A 402 ALA LYS ALA LYS PRO THR PHE VAL ASP MET ASP PRO PRO SEQRES 8 A 402 GLU HIS MET HIS GLN ARG SER MET VAL GLU PRO THR PHE SEQRES 9 A 402 THR PRO GLU ALA VAL LYS ASN LEU GLN PRO TYR ILE GLN SEQRES 10 A 402 ARG THR VAL ASP ASP LEU LEU GLU GLN MET LYS GLN LYS SEQRES 11 A 402 GLY CYS ALA ASN GLY PRO VAL ASP LEU VAL LYS GLU PHE SEQRES 12 A 402 ALA LEU PRO VAL PRO SER TYR ILE ILE TYR THR LEU LEU SEQRES 13 A 402 GLY VAL PRO PHE ASN ASP LEU GLU TYR LEU THR GLN GLN SEQRES 14 A 402 ASN ALA ILE ARG THR ASN GLY SER SER THR ALA ARG GLU SEQRES 15 A 402 ALA SER ALA ALA ASN GLN GLU LEU LEU ASP TYR LEU ALA SEQRES 16 A 402 ILE LEU VAL GLU GLN ARG LEU VAL GLU PRO LYS ASP ASP SEQRES 17 A 402 ILE ILE SER LYS LEU CYS THR GLU GLN VAL LYS PRO GLY SEQRES 18 A 402 ASN ILE ASP LYS SER ASP ALA VAL GLN ILE ALA PHE LEU SEQRES 19 A 402 LEU LEU VAL ALA GLY ASN ALA VAL MET VAL ASN MET ILE SEQRES 20 A 402 ALA LEU GLY VAL ALA THR LEU ALA GLN HIS PRO ASP GLN SEQRES 21 A 402 LEU ALA GLN LEU LYS ALA ASN PRO SER LEU ALA PRO GLN SEQRES 22 A 402 PHE VAL GLU GLU LEU CYS ARG TYR HIS THR ALA SER ALA SEQRES 23 A 402 LEU ALA ILE LYS ARG THR ALA LYS GLU ASP VAL MET ILE SEQRES 24 A 402 GLY ASP LYS LEU VAL ARG ALA ASN GLU GLY ILE ILE ALA SEQRES 25 A 402 SER ASN GLN SER ALA ASN ARG ASP GLU GLU VAL PHE GLU SEQRES 26 A 402 ASN PRO ASP GLU PHE ASN MET ASN ARG LYS TRP PRO PRO SEQRES 27 A 402 GLN ASP PRO LEU GLY PHE GLY PHE GLY ASP HIS ARG CYS SEQRES 28 A 402 ILE ALA GLU HIS LEU ALA LYS ALA GLU LEU THR THR VAL SEQRES 29 A 402 PHE SER THR LEU TYR GLN LYS PHE PRO ASP LEU LYS VAL SEQRES 30 A 402 ALA VAL PRO LEU GLY LYS ILE ASN TYR THR PRO LEU ASN SEQRES 31 A 402 ARG ASP VAL GLY ILE VAL ASP LEU PRO VAL ILE PHE HET HEM A 501 43 HET NO A 502 2 HET GOL A 503 6 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM NO NITRIC OXIDE HETNAM GOL GLYCEROL HETSYN HEM HEME HETSYN NO NITROGEN MONOXIDE HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 NO N O FORMUL 4 GOL C3 H8 O3 FORMUL 5 HOH *632(H2 O) HELIX 1 1 ALA A 20 ASN A 29 1 10 HELIX 2 2 LYS A 47 SER A 57 1 11 HELIX 3 3 SER A 73 ALA A 80 1 8 HELIX 4 4 THR A 85 MET A 89 5 5 HELIX 5 5 PRO A 92 SER A 99 1 8 HELIX 6 6 MET A 100 PHE A 105 5 6 HELIX 7 7 THR A 106 GLY A 132 1 27 HELIX 8 8 LEU A 140 PHE A 144 1 5 HELIX 9 9 LEU A 146 GLY A 158 1 13 HELIX 10 10 PRO A 160 ASN A 162 5 3 HELIX 11 11 ASP A 163 ASN A 176 1 14 HELIX 12 12 THR A 180 GLU A 205 1 26 HELIX 13 13 ASP A 209 GLN A 218 1 10 HELIX 14 14 ASP A 225 ALA A 239 1 15 HELIX 15 15 GLY A 240 HIS A 258 1 19 HELIX 16 16 HIS A 258 ASN A 268 1 11 HELIX 17 17 LEU A 271 HIS A 283 1 13 HELIX 18 18 SER A 314 ASN A 319 1 6 HELIX 19 19 PHE A 347 ARG A 351 5 5 HELIX 20 20 ALA A 354 PHE A 373 1 20 HELIX 21 21 PRO A 381 ILE A 385 5 5 SHEET 1 A 5 VAL A 31 LYS A 35 0 SHEET 2 A 5 LEU A 41 VAL A 45 -1 O ALA A 42 N VAL A 34 SHEET 3 A 5 GLY A 310 ALA A 313 1 O GLY A 310 N TRP A 43 SHEET 4 A 5 LYS A 291 ALA A 294 -1 O ARG A 292 N ILE A 311 SHEET 5 A 5 LEU A 60 SER A 61 -1 N SER A 61 O THR A 293 SHEET 1 B 3 VAL A 138 ASP A 139 0 SHEET 2 B 3 PRO A 400 ILE A 402 -1 N VAL A 401 O VAL A 138 SHEET 3 B 3 LYS A 377 VAL A 378 -1 N LYS A 377 O ILE A 402 SHEET 1 C 2 VAL A 298 ILE A 300 0 SHEET 2 C 2 LYS A 303 VAL A 305 -1 O LYS A 303 N ILE A 300 SHEET 1 D 2 ASN A 386 TYR A 387 0 SHEET 2 D 2 ILE A 396 ASP A 398 -1 N VAL A 397 O ASN A 386 LINK SG CYS A 352 FE HEM A 501 1555 1555 2.34 LINK FE HEM A 501 N NO A 502 1555 1555 2.02 CISPEP 1 PHE A 8 PRO A 9 0 3.11 CISPEP 2 PRO A 91 PRO A 92 0 -4.21 SITE 1 AC1 22 PHE A 86 VAL A 87 HIS A 94 ARG A 98 SITE 2 AC1 22 ILE A 153 LEU A 236 ALA A 239 GLY A 240 SITE 3 AC1 22 VAL A 243 MET A 244 SER A 286 GLY A 344 SITE 4 AC1 22 PHE A 345 GLY A 346 PHE A 347 HIS A 350 SITE 5 AC1 22 CYS A 352 ALA A 354 NO A 502 HOH A 608 SITE 6 AC1 22 HOH A 612 HOH A 613 SITE 1 AC2 4 ALA A 239 GLY A 240 VAL A 243 HEM A 501 SITE 1 AC3 9 ALA A 55 LYS A 62 MET A 89 ASP A 90 SITE 2 AC3 9 HIS A 350 HOH A 610 HOH A 641 HOH A 668 SITE 3 AC3 9 HOH A 870 CRYST1 54.567 81.938 85.528 90.00 90.00 90.00 P 21 21 21 4 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.018326 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012204 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011692 0.00000