PDB Short entry for 1TWR HEADER OXIDOREDUCTASE 01-JUL-04 1TWR TITLE CRYSTAL STRUCTURES OF FERROUS AND FERROUS-NO FORMS OF VERDOHEME IN A TITLE 2 COMPLEX WITH HUMAN HEME OXYGENASE-1: CATALYTIC IMPLICATIONS FOR HEME TITLE 3 CLEAVAGE COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEME OXYGENASE 1; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: HO-1; COMPND 5 EC: 1.14.99.3; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: HMOX1, HO1, HO; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: DH5ALPHA; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PCWORI KEYWDS HEME OXYGENASE-1, HEME DEGREDATION, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR L.LAD,P.R.ORTIZ DE MONTELLANO,T.L.POULOS REVDAT 3 23-AUG-23 1TWR 1 REMARK LINK REVDAT 2 24-FEB-09 1TWR 1 VERSN REVDAT 1 05-JUL-05 1TWR 0 JRNL AUTH L.LAD,P.R.ORTIZ DE MONTELLANO,T.L.POULOS JRNL TITL CRYSTAL STRUCTURES OF FERROUS AND FERROUS-NO FORMS OF JRNL TITL 2 VERDOHEME IN A COMPLEX WITH HUMAN HEME OXYGENASE-1: JRNL TITL 3 CATALYTIC IMPLICATIONS FOR HEME CLEAVAGE. JRNL REF J.INORG.BIOCHEM. V. 98 1686 2004 JRNL REFN ISSN 0162-0134 JRNL PMID 15522396 JRNL DOI 10.1016/J.JINORGBIO.2004.07.004 REMARK 2 REMARK 2 RESOLUTION. 2.10 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) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.1 REMARK 3 NUMBER OF REFLECTIONS : 59654 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.241 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 5476 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.10 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.18 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 9.62 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2979 REMARK 3 BIN FREE R VALUE : 0.3361 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 248 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3490 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 80 REMARK 3 SOLVENT ATOMS : 193 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL 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) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC 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 : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1TWR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-JUL-04. REMARK 100 THE DEPOSITION ID IS D_1000022979. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 119 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 59654 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.1 REMARK 200 DATA REDUNDANCY : 8.100 REMARK 200 R MERGE (I) : 0.09700 REMARK 200 R SYM (I) : 0.02500 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.18 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.3 REMARK 200 DATA REDUNDANCY IN SHELL : 5.10 REMARK 200 R MERGE FOR SHELL (I) : 0.08200 REMARK 200 R SYM FOR SHELL (I) : 0.25000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1QQ8 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 23.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.00 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NH4SO4, HEPES, NACL, PH 8.0, LIQUID REMARK 280 DIFFUSION, TEMPERATURE 301K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 27.12900 REMARK 290 SMTRY3 2 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 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 MET A 1 REMARK 465 GLU A 2 REMARK 465 ARG A 3 REMARK 465 PRO A 4 REMARK 465 GLN A 5 REMARK 465 PRO A 6 REMARK 465 ASP A 7 REMARK 465 SER A 8 REMARK 465 MET A 9 REMARK 465 ASP A 224 REMARK 465 THR A 225 REMARK 465 LYS A 226 REMARK 465 ASP A 227 REMARK 465 GLN A 228 REMARK 465 SER A 229 REMARK 465 PRO A 230 REMARK 465 SER A 231 REMARK 465 ARG A 232 REMARK 465 ALA A 233 REMARK 465 MET B 1 REMARK 465 GLU B 2 REMARK 465 ARG B 3 REMARK 465 PRO B 4 REMARK 465 GLN B 5 REMARK 465 PRO B 6 REMARK 465 ASP B 7 REMARK 465 SER B 8 REMARK 465 MET B 9 REMARK 465 ASP B 224 REMARK 465 THR B 225 REMARK 465 LYS B 226 REMARK 465 ASP B 227 REMARK 465 GLN B 228 REMARK 465 SER B 229 REMARK 465 PRO B 230 REMARK 465 SER B 231 REMARK 465 ARG B 232 REMARK 465 ALA B 233 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 GLU A 15 CD OE1 OE2 REMARK 480 ARG A 100 NH1 REMARK 480 LYS A 153 CB REMARK 480 GLN A 180 NE2 REMARK 480 ARG A 198 NE CZ NH1 NH2 REMARK 480 GLN B 11 CG CD NE2 REMARK 480 GLU B 23 CG 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 PHE A 74 -36.07 -135.08 REMARK 500 SER A 142 -75.33 -59.73 REMARK 500 ASP A 156 64.02 38.41 REMARK 500 PRO A 158 -122.69 -68.59 REMARK 500 SER A 159 56.13 -158.50 REMARK 500 THR A 222 58.21 -114.22 REMARK 500 PHE B 74 -32.55 -134.14 REMARK 500 GLU B 125 55.53 -142.11 REMARK 500 REMARK 500 REMARK: NULL REMARK 615 REMARK 615 ZERO OCCUPANCY ATOM REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 615 M RES C SSEQI REMARK 615 VER A 300 REMARK 615 VER B 300 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 VER A 300 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 25 NE2 REMARK 620 2 VER A 300 NA 96.2 REMARK 620 3 VER A 300 NB 104.7 89.3 REMARK 620 4 VER A 300 NC 86.0 177.7 90.3 REMARK 620 5 VER A 300 ND 77.2 90.4 178.2 89.9 REMARK 620 6 NO A 400 N 154.9 108.8 74.5 68.9 103.8 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 VER B 300 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 25 NE2 REMARK 620 2 VER B 300 NA 95.7 REMARK 620 3 VER B 300 NB 109.9 88.8 REMARK 620 4 VER B 300 NC 86.4 177.6 89.4 REMARK 620 5 VER B 300 ND 71.6 91.6 178.4 90.2 REMARK 620 6 NO B 401 N 160.8 87.7 89.0 90.8 89.5 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 VER A 300 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE VER B 300 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO A 400 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO B 401 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1TWN RELATED DB: PDB DBREF 1TWR A 1 233 UNP P09601 HMOX1_HUMAN 1 233 DBREF 1TWR B 1 233 UNP P09601 HMOX1_HUMAN 1 233 SEQRES 1 A 233 MET GLU ARG PRO GLN PRO ASP SER MET PRO GLN ASP LEU SEQRES 2 A 233 SER GLU ALA LEU LYS GLU ALA THR LYS GLU VAL HIS THR SEQRES 3 A 233 GLN ALA GLU ASN ALA GLU PHE MET ARG ASN PHE GLN LYS SEQRES 4 A 233 GLY GLN VAL THR ARG ASP GLY PHE LYS LEU VAL MET ALA SEQRES 5 A 233 SER LEU TYR HIS ILE TYR VAL ALA LEU GLU GLU GLU ILE SEQRES 6 A 233 GLU ARG ASN LYS GLU SER PRO VAL PHE ALA PRO VAL TYR SEQRES 7 A 233 PHE PRO GLU GLU LEU HIS ARG LYS ALA ALA LEU GLU GLN SEQRES 8 A 233 ASP LEU ALA PHE TRP TYR GLY PRO ARG TRP GLN GLU VAL SEQRES 9 A 233 ILE PRO TYR THR PRO ALA MET GLN ARG TYR VAL LYS ARG SEQRES 10 A 233 LEU HIS GLU VAL GLY ARG THR GLU PRO GLU LEU LEU VAL SEQRES 11 A 233 ALA HIS ALA TYR THR ARG TYR LEU GLY ASP LEU SER GLY SEQRES 12 A 233 GLY GLN VAL LEU LYS LYS ILE ALA GLN LYS ALA LEU ASP SEQRES 13 A 233 LEU PRO SER SER GLY GLU GLY LEU ALA PHE PHE THR PHE SEQRES 14 A 233 PRO ASN ILE ALA SER ALA THR LYS PHE LYS GLN LEU TYR SEQRES 15 A 233 ARG SER ARG MET ASN SER LEU GLU MET THR PRO ALA VAL SEQRES 16 A 233 ARG GLN ARG VAL ILE GLU GLU ALA LYS THR ALA PHE LEU SEQRES 17 A 233 LEU ASN ILE GLN LEU PHE GLU GLU LEU GLN GLU LEU LEU SEQRES 18 A 233 THR HIS ASP THR LYS ASP GLN SER PRO SER ARG ALA SEQRES 1 B 233 MET GLU ARG PRO GLN PRO ASP SER MET PRO GLN ASP LEU SEQRES 2 B 233 SER GLU ALA LEU LYS GLU ALA THR LYS GLU VAL HIS THR SEQRES 3 B 233 GLN ALA GLU ASN ALA GLU PHE MET ARG ASN PHE GLN LYS SEQRES 4 B 233 GLY GLN VAL THR ARG ASP GLY PHE LYS LEU VAL MET ALA SEQRES 5 B 233 SER LEU TYR HIS ILE TYR VAL ALA LEU GLU GLU GLU ILE SEQRES 6 B 233 GLU ARG ASN LYS GLU SER PRO VAL PHE ALA PRO VAL TYR SEQRES 7 B 233 PHE PRO GLU GLU LEU HIS ARG LYS ALA ALA LEU GLU GLN SEQRES 8 B 233 ASP LEU ALA PHE TRP TYR GLY PRO ARG TRP GLN GLU VAL SEQRES 9 B 233 ILE PRO TYR THR PRO ALA MET GLN ARG TYR VAL LYS ARG SEQRES 10 B 233 LEU HIS GLU VAL GLY ARG THR GLU PRO GLU LEU LEU VAL SEQRES 11 B 233 ALA HIS ALA TYR THR ARG TYR LEU GLY ASP LEU SER GLY SEQRES 12 B 233 GLY GLN VAL LEU LYS LYS ILE ALA GLN LYS ALA LEU ASP SEQRES 13 B 233 LEU PRO SER SER GLY GLU GLY LEU ALA PHE PHE THR PHE SEQRES 14 B 233 PRO ASN ILE ALA SER ALA THR LYS PHE LYS GLN LEU TYR SEQRES 15 B 233 ARG SER ARG MET ASN SER LEU GLU MET THR PRO ALA VAL SEQRES 16 B 233 ARG GLN ARG VAL ILE GLU GLU ALA LYS THR ALA PHE LEU SEQRES 17 B 233 LEU ASN ILE GLN LEU PHE GLU GLU LEU GLN GLU LEU LEU SEQRES 18 B 233 THR HIS ASP THR LYS ASP GLN SER PRO SER ARG ALA HET VER A 300 38 HET NO A 400 2 HET VER B 300 38 HET NO B 401 2 HETNAM VER IRON-OCTAETHYLPORPHYRIN HETNAM NO NITRIC OXIDE HETSYN VER VERDOHEME HETSYN NO NITROGEN MONOXIDE FORMUL 3 VER 2(C30 H27 FE N4 O3 1+) FORMUL 4 NO 2(N O) FORMUL 7 HOH *193(H2 O) HELIX 1 1 ASP A 12 THR A 21 1 10 HELIX 2 2 THR A 21 ALA A 31 1 11 HELIX 3 3 ALA A 31 LYS A 39 1 9 HELIX 4 4 THR A 43 LYS A 69 1 27 HELIX 5 5 PHE A 74 TYR A 78 5 5 HELIX 6 6 PHE A 79 HIS A 84 1 6 HELIX 7 7 ARG A 85 TYR A 97 1 13 HELIX 8 8 ARG A 100 ILE A 105 1 6 HELIX 9 9 THR A 108 GLU A 125 1 18 HELIX 10 10 LEU A 128 GLY A 143 1 16 HELIX 11 11 GLY A 143 LEU A 155 1 13 HELIX 12 12 LEU A 164 THR A 168 5 5 HELIX 13 13 SER A 174 SER A 188 1 15 HELIX 14 14 THR A 192 LEU A 221 1 30 HELIX 15 15 ASP B 12 THR B 21 1 10 HELIX 16 16 THR B 21 ALA B 31 1 11 HELIX 17 17 ALA B 31 LYS B 39 1 9 HELIX 18 18 THR B 43 ASN B 68 1 26 HELIX 19 19 PHE B 74 TYR B 78 5 5 HELIX 20 20 PHE B 79 HIS B 84 1 6 HELIX 21 21 ARG B 85 GLY B 98 1 14 HELIX 22 22 ARG B 100 ILE B 105 1 6 HELIX 23 23 THR B 108 GLU B 125 1 18 HELIX 24 24 LEU B 128 ASP B 156 1 29 HELIX 25 25 LEU B 164 THR B 168 5 5 HELIX 26 26 SER B 174 SER B 188 1 15 HELIX 27 27 THR B 192 HIS B 223 1 32 LINK NE2 HIS A 25 FE VER A 300 1555 1555 2.36 LINK FE VER A 300 N NO A 400 1555 1555 1.98 LINK NE2 HIS B 25 FE VER B 300 1555 1555 2.54 LINK FE VER B 300 N NO B 401 1555 1555 1.83 SITE 1 AC1 11 LYS A 18 HIS A 25 MET A 34 TYR A 134 SITE 2 AC1 11 THR A 135 GLY A 139 ARG A 183 PHE A 207 SITE 3 AC1 11 ASN A 210 PHE A 214 NO A 400 SITE 1 AC2 10 HIS B 25 GLU B 29 MET B 34 GLN B 38 SITE 2 AC2 10 THR B 135 GLY B 139 PHE B 207 ASN B 210 SITE 3 AC2 10 PHE B 214 NO B 401 SITE 1 AC3 2 GLY A 139 VER A 300 SITE 1 AC4 3 GLY B 139 GLY B 143 VER B 300 CRYST1 61.038 54.258 70.249 90.00 98.12 90.00 P 1 21 1 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 0.016383 0.000000 0.002338 0.00000 SCALE2 0.000000 0.018430 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014379 0.00000