HEADER OXIDOREDUCTASE 07-MAY-99 1CMN TITLE CRYSTAL STRUCTURES OF FERRIC-NO COMPLEXES OF FUNGAL NITRIC OXIDE TITLE 2 REDUCTASE AND THEIR SER286 MUTANTS AT CRYOGENIC TEMPERATURE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: P450NOR; COMPND 5 EC: 1.14.-.-; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: FUSARIUM OXYSPORUM; SOURCE 3 ORGANISM_TAXID: 5507; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: JM109(DE3); SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: COL E1; SOURCE 8 EXPRESSION_SYSTEM_VECTOR: PRSET-C; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PNORSV; SOURCE 10 EXPRESSION_SYSTEM_GENE: CYP55 KEYWDS NITRIC OXIDE REDUCTASE, CYTOCHROME P450NOR, NO-LIGANDED, KEYWDS 2 MUTAGENESIS(S286V), OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR S.-Y.PARK,Y.SHIRO REVDAT 7 09-AUG-23 1CMN 1 REMARK REVDAT 6 03-NOV-21 1CMN 1 REMARK SEQADV LINK REVDAT 5 04-OCT-17 1CMN 1 REMARK REVDAT 4 24-FEB-09 1CMN 1 VERSN REVDAT 3 01-APR-03 1CMN 1 JRNL REVDAT 2 24-APR-00 1CMN 1 SEQRES REVDAT 1 22-MAR-00 1CMN 0 JRNL AUTH H.SHIMIZU,E.OBAYASHI,Y.GOMI,H.ARAKAWA,S.Y.PARK,H.NAKAMURA, JRNL AUTH 2 S.ADACHI,H.SHOUN,Y.SHIRO JRNL TITL PROTON DELIVERY IN NO REDUCTION BY FUNGAL NITRIC-OXIDE JRNL TITL 2 REDUCTASE. CRYOGENIC CRYSTALLOGRAPHY, SPECTROSCOPY, AND JRNL TITL 3 KINETICS OF FERRIC-NO COMPLEXES OF WILD-TYPE AND MUTANT JRNL TITL 4 ENZYMES. JRNL REF J.BIOL.CHEM. V. 275 4816 2000 JRNL REFN ISSN 0021-9258 JRNL PMID 10671516 JRNL DOI 10.1074/JBC.275.7.4816 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.8 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 10000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 97.1 REMARK 3 NUMBER OF REFLECTIONS : 41851 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) : 0.191 REMARK 3 FREE R VALUE : 0.228 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 2135 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.70 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.81 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 88.20 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 5925 REMARK 3 BIN R VALUE (WORKING SET) : 0.2610 REMARK 3 BIN FREE R VALUE : 0.2770 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.70 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 289 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.016 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3100 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 45 REMARK 3 SOLVENT ATOMS : 354 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.10 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) : 0.18 REMARK 3 ESD FROM SIGMAA (A) : 0.17 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) : 0.20 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.14 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) : 23.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.770 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) : 1.160 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.620 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.330 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.480 ; 2.500 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 1CMN COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-MAY-99. REMARK 100 THE DEPOSITION ID IS D_1000001022. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-AUG-98 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) : 0.7000 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : MIRROR/MONOCHROMATOR 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 : 41933 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.8 REMARK 200 DATA REDUNDANCY : 6.160 REMARK 200 R MERGE (I) : 0.05900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.4 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.22400 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: X-PLOR 3.8 REMARK 200 STARTING MODEL: 1ROM REMARK 200 REMARK 200 REMARK: ROTATION AND TRANSLATION SEARCH IN THE X-PLOR PACKAGE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100MM-MES BUFFER AT PH 7.0 USING PEG4K 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 27.33500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 42.94500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 40.92500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 42.94500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 27.33500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 40.92500 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: 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 68.40 -160.77 REMARK 500 CYS A 133 38.79 -142.92 REMARK 500 PHE A 144 -58.61 -144.76 REMARK 500 LYS A 207 -168.58 -119.39 REMARK 500 CYS A 352 119.57 -29.60 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 93.1 REMARK 620 3 HEM A 501 NB 89.0 90.3 REMARK 620 4 HEM A 501 NC 86.4 179.5 89.7 REMARK 620 5 HEM A 501 ND 91.3 90.4 179.3 89.6 REMARK 620 6 NO A 502 N 176.4 83.8 92.9 96.7 86.9 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1CL6 RELATED DB: PDB REMARK 900 RELATED ID: 1CMJ RELATED DB: PDB DBREF 1CMN A 2 403 UNP P23295 NOR_FUSOX 1 402 SEQADV 1CMN VAL A 286 UNP P23295 SER 285 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 THR 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 VAL 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 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM NO NITRIC OXIDE HETSYN HEM HEME HETSYN NO NITROGEN MONOXIDE FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 NO N O FORMUL 4 HOH *354(H2 O) HELIX 1 1 GLU A 21 THR A 28 1 8 HELIX 2 2 HIS A 48 THR A 56 1 9 HELIX 3 3 ALA A 74 LYS A 81 1 8 HELIX 4 4 PHE A 86 ASP A 88 5 3 HELIX 5 5 GLU A 93 MET A 100 1 8 HELIX 6 6 GLU A 102 PHE A 105 5 4 HELIX 7 7 PRO A 107 LYS A 131 1 25 HELIX 8 8 LEU A 140 GLU A 143 1 4 HELIX 9 9 ALA A 145 LEU A 157 1 13 HELIX 10 10 PHE A 161 THR A 175 5 15 HELIX 11 11 ALA A 181 VAL A 204 1 24 HELIX 12 12 ILE A 210 GLU A 217 1 8 HELIX 13 13 LYS A 226 VAL A 238 1 13 HELIX 14 14 ASN A 241 GLN A 257 1 17 HELIX 15 15 PRO A 259 ALA A 267 1 9 HELIX 16 16 PRO A 269 TYR A 282 5 14 HELIX 17 17 ASN A 315 ARG A 320 1 6 HELIX 18 18 GLU A 355 PHE A 366 1 12 HELIX 19 19 LEU A 369 LYS A 372 1 4 HELIX 20 20 LEU A 382 LYS A 384 5 3 SHEET 1 A 4 VAL A 31 LYS A 35 0 SHEET 2 A 4 LEU A 41 VAL A 45 -1 N LEU A 44 O SER A 32 SHEET 3 A 4 GLY A 310 ALA A 313 1 N GLY A 310 O TRP A 43 SHEET 4 A 4 LYS A 291 THR A 293 -1 N ARG A 292 O ILE A 311 SHEET 1 B 2 VAL A 298 ILE A 300 0 SHEET 2 B 2 LYS A 303 VAL A 305 -1 N VAL A 305 O VAL A 298 LINK SG CYS A 352 FE HEM A 501 1555 1555 2.37 LINK FE HEM A 501 N NO A 502 1555 1555 1.62 CISPEP 1 PHE A 8 PRO A 9 0 0.32 CISPEP 2 PRO A 91 PRO A 92 0 0.05 SITE 1 AC1 25 PHE A 86 VAL A 87 HIS A 94 ARG A 98 SITE 2 AC1 25 ILE A 153 LEU A 236 ALA A 239 GLY A 240 SITE 3 AC1 25 THR A 243 MET A 244 VAL A 286 GLY A 344 SITE 4 AC1 25 PHE A 345 GLY A 346 PHE A 347 HIS A 350 SITE 5 AC1 25 CYS A 352 ILE A 353 ALA A 354 ALA A 358 SITE 6 AC1 25 NO A 502 HOH A 508 HOH A 515 HOH A 538 SITE 7 AC1 25 HOH A 549 SITE 1 AC2 3 ALA A 239 HEM A 501 HOH A 794 CRYST1 54.670 81.850 85.890 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 0.018291 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012217 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011643 0.00000