HEADER OXIDOREDUCTASE 29-OCT-02 1N3U TITLE CRYSTAL STRUCTURE OF HUMAN HEME OXYGENASE 1 (HO-1) IN COMPLEX WITH ITS TITLE 2 SUBSTRATE HEME, CRYSTAL FORM B COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEME OXYGENASE 1; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: RESIDUES 1-233; COMPND 5 SYNONYM: HO-1; COMPND 6 EC: 1.14.99.3; COMPND 7 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; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: DH5-ALPHA; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: DELTA233-HHO-1 KEYWDS ALPHA HELICES, HEME-BINDING SITE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR L.LAD,D.J.SCHULLER,J.P.FRIEDMAN,H.LI,P.R.ORTIZ DE MONTELLANO, AUTHOR 2 T.L.POULOS REVDAT 4 14-FEB-24 1N3U 1 REMARK LINK REVDAT 3 24-FEB-09 1N3U 1 VERSN REVDAT 2 11-JAN-05 1N3U 1 JRNL REVDAT 1 06-NOV-02 1N3U 0 JRNL AUTH L.LAD,D.J.SCHULLER,H.SHIMIZU,J.FRIEDMAN,H.LI, JRNL AUTH 2 P.R.ORTIZ DE MONTELLANO,T.L.POULOS JRNL TITL COMPARISON OF THE HEME-FREE AND -BOUND CRYSTAL STRUCTURES OF JRNL TITL 2 HUMAN HEME OXYGENASE-1 JRNL REF J.BIOL.CHEM. V. 278 7834 2003 JRNL REFN ISSN 0021-9258 JRNL PMID 12500973 JRNL DOI 10.1074/JBC.M211450200 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH D.J.SCHULLER,A.WILKS,P.R.ORTIZ DE MONTELLANO,T.L.POULOS REMARK 1 TITL CRYSTAL STRUCTURE OF HUMAN HEME OXYGENASE-1 REMARK 1 REF NAT.STRUCT.BIOL. V. 6 903 1999 REMARK 1 REFN ISSN 1072-8368 REMARK 1 DOI 10.1038/13264 REMARK 2 REMARK 2 RESOLUTION. 2.58 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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) : 2.58 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 70.00 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) (%) : 96.9 REMARK 3 NUMBER OF REFLECTIONS : 14295 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.225 REMARK 3 FREE R VALUE : 0.265 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 780 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) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL 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 : 89 REMARK 3 SOLVENT ATOMS : 87 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 64.60 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) : 1.200 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 1N3U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-OCT-02. REMARK 100 THE DEPOSITION ID IS D_1000017484. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-MAY-98 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : MIRRORS + NICKEL FILTER REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14295 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.580 REMARK 200 RESOLUTION RANGE LOW (A) : 78.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.9 REMARK 200 DATA REDUNDANCY : 7.100 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07400 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.58 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.64 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.4 REMARK 200 DATA REDUNDANCY IN SHELL : 7.00 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.56600 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1QQ8 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.28 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.31 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, HEPES, 1,6 REMARK 280 -HEXANEDIOL, PH 7.5, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE REMARK 280 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 27.96000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 300 REMARK: THE ENZYME IS A MONOMER 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 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 -35.63 -138.32 REMARK 500 PRO A 158 -150.91 -62.66 REMARK 500 PHE B 74 -31.38 -138.13 REMARK 500 PRO B 158 -151.22 -62.65 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 300 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 25 NE2 REMARK 620 2 HEM A 300 NA 89.2 REMARK 620 3 HEM A 300 NB 97.6 90.0 REMARK 620 4 HEM A 300 NC 94.0 176.8 89.6 REMARK 620 5 HEM A 300 ND 88.3 90.0 174.1 90.1 REMARK 620 6 HOH A 301 O 175.7 87.5 85.1 89.4 89.0 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 300 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 25 NE2 REMARK 620 2 HEM B 300 NA 90.8 REMARK 620 3 HEM B 300 NB 97.6 88.8 REMARK 620 4 HEM B 300 NC 94.7 174.5 89.8 REMARK 620 5 HEM B 300 ND 88.9 90.6 173.5 90.1 REMARK 620 6 HOH B 301 O 177.7 87.0 83.2 87.5 90.3 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 CL A 234 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 234 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 235 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 300 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1QQ8 RELATED DB: PDB REMARK 900 X-RAY CRYSTAL STRUCTURE OF HUMAN HEME OXYGENASE-1 (HO-1) IN COMPLEX REMARK 900 WITH ITS SUBSTRATE HEME, CRYSTAL FORM C DBREF 1N3U A 1 233 UNP P09601 HMOX1_HUMAN 1 233 DBREF 1N3U 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 CL A 234 1 HET HEM A 300 43 HET CL B 234 1 HET CL B 235 1 HET HEM B 300 43 HETNAM CL CHLORIDE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 3 CL 3(CL 1-) FORMUL 4 HEM 2(C34 H32 FE N4 O4) FORMUL 8 HOH *87(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 GLY A 98 1 14 HELIX 8 8 ARG A 100 VAL A 104 5 5 HELIX 9 9 THR A 108 GLU A 125 1 18 HELIX 10 10 LEU A 128 ASP A 156 1 29 HELIX 11 11 LEU A 164 THR A 168 5 5 HELIX 12 12 SER A 174 LEU A 189 1 16 HELIX 13 13 THR A 192 THR A 222 1 31 HELIX 14 14 ASP B 12 THR B 21 1 10 HELIX 15 15 THR B 21 ALA B 31 1 11 HELIX 16 16 ALA B 31 LYS B 39 1 9 HELIX 17 17 THR B 43 LYS B 69 1 27 HELIX 18 18 PHE B 74 TYR B 78 5 5 HELIX 19 19 PHE B 79 HIS B 84 1 6 HELIX 20 20 ARG B 85 GLY B 98 1 14 HELIX 21 21 ARG B 100 VAL B 104 5 5 HELIX 22 22 THR B 108 GLU B 125 1 18 HELIX 23 23 LEU B 128 ASP B 156 1 29 HELIX 24 24 LEU B 164 THR B 168 5 5 HELIX 25 25 SER B 174 LEU B 189 1 16 HELIX 26 26 THR B 192 THR B 222 1 31 LINK NE2 HIS A 25 FE HEM A 300 1555 1555 2.29 LINK FE HEM A 300 O HOH A 301 1555 1555 1.78 LINK NE2 HIS B 25 FE HEM B 300 1555 1555 2.23 LINK FE HEM B 300 O HOH B 301 1555 1555 1.80 SITE 1 AC1 1 THR A 176 SITE 1 AC2 1 THR B 192 SITE 1 AC3 1 SER B 174 SITE 1 AC4 12 LYS A 18 HIS A 25 GLU A 29 GLN A 38 SITE 2 AC4 12 TYR A 134 THR A 135 GLY A 139 LYS A 179 SITE 3 AC4 12 PHE A 207 ASN A 210 PHE A 214 HOH A 301 SITE 1 AC5 12 LYS B 18 HIS B 25 GLU B 29 GLN B 38 SITE 2 AC5 12 TYR B 134 THR B 135 GLY B 139 LYS B 179 SITE 3 AC5 12 PHE B 207 ASN B 210 PHE B 214 HOH B 301 CRYST1 54.395 55.920 79.379 90.00 101.20 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 0.018384 0.000000 0.003640 0.00000 SCALE2 0.000000 0.017883 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012842 0.00000