HEADER OXIDOREDUCTASE 06-SEP-06 2DY5 TITLE CRYSTAL STRUCTURE OF RAT HEME OXYGENASE-1 IN COMPLEX WITH TITLE 2 HEME AND 2-[2-(4-CHLOROPHENYL)ETHYL]-2-[(1H-IMIDAZOL-1-YL) TITLE 3 METHYL]-1,3-DIOXOLANE COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEME OXYGENASE 1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: C-TERMINAL TRUNCATED FORM; COMPND 5 SYNONYM: HO-1, HSP32; COMPND 6 EC: 1.14.99.3; COMPND 7 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 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: JM109; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PBACE KEYWDS INHIBITOR, SUBSTRATE BOUND STRUCTURE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR M.SUGISHIMA,H.TAKAHASHI,K.FUKUYAMA REVDAT 2 24-FEB-09 2DY5 1 VERSN REVDAT 1 22-MAY-07 2DY5 0 JRNL AUTH M.SUGISHIMA,Y.HIGASHIMOTO,T.OISHI,H.TAKAHASHI, JRNL AUTH 2 H.SAKAMOTO,M.NOGUCHI,K.FUKUYAMA JRNL TITL X-RAY CRYSTALLOGRAPHIC AND BIOCHEMICAL JRNL TITL 2 CHARACTERIZATION OF THE INHIBITORY ACTION OF AN JRNL TITL 3 IMIDAZOLE-DIOXOLANE COMPOUND ON HEME OXYGENASE JRNL REF BIOCHEMISTRY V. 46 1860 2007 JRNL REFN ISSN 0006-2960 JRNL PMID 17253780 JRNL DOI 10.1021/BI062264P REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 2.70 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) : 2.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 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) (%) : 96.6 REMARK 3 NUMBER OF REFLECTIONS : 8758 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) : 0.194 REMARK 3 FREE R VALUE : 0.248 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 480 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) : 2.70 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.80 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 84.70 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2855 REMARK 3 BIN FREE R VALUE : 0.3049 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 42 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 : 1742 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 64 REMARK 3 SOLVENT ATOMS : 10 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 61.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 50.15 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -4.79100 REMARK 3 B22 (A**2) : -4.79100 REMARK 3 B33 (A**2) : 9.58300 REMARK 3 B12 (A**2) : -14.10800 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) : 0.30 REMARK 3 ESD FROM SIGMAA (A) : 0.38 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) : 0.37 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.42 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : 18.62 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.72 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 2DY5 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 08-SEP-06. REMARK 100 THE RCSB ID CODE IS RCSB025988. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-JUL-06 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 : BL41XU REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0000 REMARK 200 MONOCHROMATOR : SI(111) DOUBLE MONOCHROMATOR REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 8774 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.700 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.4 REMARK 200 DATA REDUNDANCY : 7.400 REMARK 200 R MERGE (I) : 0.09100 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 10.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.80 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.1 REMARK 200 DATA REDUNDANCY IN SHELL : 7.60 REMARK 200 R MERGE FOR SHELL (I) : 0.31900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 1IVJ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.55 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 4.2M SODIUM FORMATE, 50MM POTTASIUM REMARK 280 PHOSPHATE, PH 7.0, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE REMARK 280 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 80.92667 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 40.46333 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 40.46333 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 80.92667 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 300 REMARK: THE BIOLOGICAL ASSYMBLY IS A MONOMER IN THE ASYMMETRIC REMARK 300 UNIT. 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 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 LEU A 6 REMARK 465 ASP A 7 REMARK 465 SER A 8 REMARK 465 MET A 9 REMARK 465 GLU A 224 REMARK 465 HIS 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 GLN A 232 REMARK 465 THR A 233 REMARK 465 GLU A 234 REMARK 465 PHE A 235 REMARK 465 LEU A 236 REMARK 465 ARG A 237 REMARK 465 GLN A 238 REMARK 465 ARG A 239 REMARK 465 PRO A 240 REMARK 465 ALA A 241 REMARK 465 SER A 242 REMARK 465 LEU A 243 REMARK 465 VAL A 244 REMARK 465 GLN A 245 REMARK 465 ASP A 246 REMARK 465 THR A 247 REMARK 465 THR A 248 REMARK 465 SER A 249 REMARK 465 ALA A 250 REMARK 465 GLU A 251 REMARK 465 THR A 252 REMARK 465 PRO A 253 REMARK 465 ARG A 254 REMARK 465 GLY A 255 REMARK 465 LYS A 256 REMARK 465 SER A 257 REMARK 465 GLN A 258 REMARK 465 ILE A 259 REMARK 465 SER A 260 REMARK 465 THR A 261 REMARK 465 SER A 262 REMARK 465 SER A 263 REMARK 465 SER A 264 REMARK 465 GLN A 265 REMARK 465 THR A 266 REMARK 465 PRO A 267 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 VAL A 42 107.40 -161.26 REMARK 500 TYR A 74 -42.32 -137.99 REMARK 500 ALA A 75 -51.37 -25.15 REMARK 500 HIS A 100 49.28 -100.11 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 2 224 A 301 N2 177.0 REMARK 620 N 1 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 302 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 300 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 224 A 301 DBREF 2DY5 A 1 267 UNP P06762 HMOX1_RAT 1 267 SEQRES 1 A 267 MET GLU ARG PRO GLN LEU ASP SER MET SER GLN ASP LEU SEQRES 2 A 267 SER GLU ALA LEU LYS GLU ALA THR LYS GLU VAL HIS ILE SEQRES 3 A 267 ARG ALA GLU ASN SER GLU PHE MET ARG ASN PHE GLN LYS SEQRES 4 A 267 GLY GLN VAL SER ARG GLU GLY PHE LYS LEU VAL MET ALA SEQRES 5 A 267 SER LEU TYR HIS ILE TYR THR ALA LEU GLU GLU GLU ILE SEQRES 6 A 267 GLU ARG ASN LYS GLN ASN PRO VAL TYR ALA PRO LEU TYR SEQRES 7 A 267 PHE PRO GLU GLU LEU HIS ARG ARG ALA ALA LEU GLU GLN SEQRES 8 A 267 ASP MET ALA PHE TRP TYR GLY PRO HIS TRP GLN GLU ALA SEQRES 9 A 267 ILE PRO TYR THR PRO ALA THR GLN HIS TYR VAL LYS ARG SEQRES 10 A 267 LEU HIS GLU VAL GLY GLY THR HIS PRO GLU LEU LEU VAL SEQRES 11 A 267 ALA HIS ALA TYR THR ARG TYR LEU GLY ASP LEU SER GLY SEQRES 12 A 267 GLY GLN VAL LEU LYS LYS ILE ALA GLN LYS ALA MET ALA SEQRES 13 A 267 LEU PRO SER SER GLY GLU GLY LEU ALA PHE PHE THR PHE SEQRES 14 A 267 PRO SER ILE ASP ASN PRO THR LYS PHE LYS GLN LEU TYR SEQRES 15 A 267 ARG ALA ARG MET ASN THR LEU GLU MET THR PRO GLU VAL SEQRES 16 A 267 LYS HIS ARG VAL THR GLU GLU ALA LYS THR ALA PHE LEU SEQRES 17 A 267 LEU ASN ILE GLU LEU PHE GLU GLU LEU GLN ALA LEU LEU SEQRES 18 A 267 THR GLU GLU HIS LYS ASP GLN SER PRO SER GLN THR GLU SEQRES 19 A 267 PHE LEU ARG GLN ARG PRO ALA SER LEU VAL GLN ASP THR SEQRES 20 A 267 THR SER ALA GLU THR PRO ARG GLY LYS SER GLN ILE SER SEQRES 21 A 267 THR SER SER SER GLN THR PRO HET CL A 302 1 HET HEM A 300 43 HET 224 A 301 20 HETNAM CL CHLORIDE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM 224 1-({2-[2-(4-CHLOROPHENYL)ETHYL]-1,3-DIOXOLAN-2- HETNAM 2 224 YL}METHYL)-1H-IMIDAZOLE HETSYN HEM HEME HETSYN 224 2-[2-(4-CHLOROPHENYL)ETHYL]-2-[(1H-IMIDAZOL-1-YL) HETSYN 2 224 METHYL]-1,3-DIOXOLANE FORMUL 2 CL CL 1- FORMUL 3 HEM C34 H32 FE N4 O4 FORMUL 4 224 C15 H17 CL N2 O2 FORMUL 5 HOH *10(H2 O) HELIX 1 1 ASP A 12 ASN A 30 1 19 HELIX 2 2 SER A 31 GLN A 38 1 8 HELIX 3 3 SER A 43 LYS A 69 1 27 HELIX 4 4 TYR A 74 TYR A 78 5 5 HELIX 5 5 PHE A 79 HIS A 84 1 6 HELIX 6 6 ARG A 85 GLY A 98 1 14 HELIX 7 7 HIS A 100 ALA A 104 5 5 HELIX 8 8 THR A 108 HIS A 125 1 18 HELIX 9 9 LEU A 128 GLY A 144 1 17 HELIX 10 10 GLN A 145 ALA A 156 1 12 HELIX 11 11 LEU A 164 THR A 168 5 5 HELIX 12 12 ASN A 174 ASN A 187 1 14 HELIX 13 13 THR A 192 THR A 222 1 31 LINK FE HEM A 300 NE2 HIS A 25 1555 1555 2.23 LINK FE HEM A 300 N2 224 A 301 1555 1555 2.19 SITE 1 AC1 2 ARG A 27 ARG A 185 SITE 1 AC2 14 LYS A 18 HIS A 25 GLU A 29 MET A 34 SITE 2 AC2 14 TYR A 134 GLY A 139 SER A 142 LEU A 147 SITE 3 AC2 14 LYS A 179 ARG A 183 PHE A 207 ASN A 210 SITE 4 AC2 14 PHE A 214 224 A 301 SITE 1 AC3 9 MET A 34 PHE A 37 VAL A 50 GLY A 139 SITE 2 AC3 9 ASP A 140 GLY A 143 LEU A 147 PHE A 167 SITE 3 AC3 9 HEM A 300 CRYST1 66.780 66.780 121.390 90.00 90.00 120.00 P 32 2 1 6 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 0.014975 0.008646 0.000000 0.00000 SCALE2 0.000000 0.017291 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008238 0.00000 MASTER 323 0 3 13 0 0 8 6 0 0 0 21 END