HEADER OXIDOREDUCTASE 04-JAN-22 7TEF TITLE CYTOCHROME P450 14 ALPHA-STEROL DEMETHYLASE CYP51 FROM MYCOBACTERIUM TITLE 2 MARINUM COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450 51B1 CYP51B1; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MYCOBACTERIUM MARINUM; SOURCE 3 ORGANISM_TAXID: 1781; SOURCE 4 STRAIN: ATCC BAA-535 / M; SOURCE 5 GENE: CYP51B1, MMAR_4932; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS 14 ALPHA STEROL DEMETHYLASE CYTOCHROME P450 SUBSTRATE FREE, KEYWDS 2 OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR H.A.MOHAMED,J.B.BRUNING,S.G.BELL REVDAT 2 25-OCT-23 7TEF 1 REMARK REVDAT 1 30-NOV-22 7TEF 0 JRNL AUTH H.MOHAMED,S.A.CHILD,J.B.BRUNING,S.G.BELL JRNL TITL A COMPARISON OF THE BACTERIAL CYP51 CYTOCHROME P450 ENZYMES JRNL TITL 2 FROM MYCOBACTERIUM MARINUM AND MYCOBACTERIUM TUBERCULOSIS. JRNL REF J.STEROID BIOCHEM.MOL.BIOL. V. 221 06097 2022 JRNL REFN ISSN 0960-0760 JRNL PMID 35346833 JRNL DOI 10.1016/J.JSBMB.2022.106097 REMARK 2 REMARK 2 RESOLUTION. 1.98 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.18.2_3874 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.98 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 44.28 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 33193 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.174 REMARK 3 R VALUE (WORKING SET) : 0.172 REMARK 3 FREE R VALUE : 0.213 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.150 REMARK 3 FREE R VALUE TEST SET COUNT : 1709 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 44.2800 - 4.5300 1.00 2825 125 0.1798 0.2004 REMARK 3 2 4.5300 - 3.6000 1.00 2645 174 0.1349 0.1609 REMARK 3 3 3.6000 - 3.1400 1.00 2680 117 0.1576 0.2003 REMARK 3 4 3.1400 - 2.8500 1.00 2608 141 0.1744 0.2345 REMARK 3 5 2.8500 - 2.6500 1.00 2631 141 0.1753 0.2318 REMARK 3 6 2.6500 - 2.4900 1.00 2605 133 0.1786 0.2247 REMARK 3 7 2.4900 - 2.3700 1.00 2582 153 0.1754 0.2407 REMARK 3 8 2.3700 - 2.2700 1.00 2589 145 0.1815 0.2257 REMARK 3 9 2.2700 - 2.1800 1.00 2579 163 0.1896 0.2522 REMARK 3 10 2.1800 - 2.1000 1.00 2589 138 0.1984 0.2703 REMARK 3 11 2.1000 - 2.0400 1.00 2567 144 0.2110 0.2510 REMARK 3 12 2.0400 - 1.9800 1.00 2584 135 0.2312 0.2647 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.200 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.230 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 26.30 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : NULL NULL REMARK 3 ANGLE : NULL NULL REMARK 3 CHIRALITY : NULL NULL REMARK 3 PLANARITY : NULL NULL REMARK 3 DIHEDRAL : NULL NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 7TEF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-JAN-22. REMARK 100 THE DEPOSITION ID IS D_1000262153. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-JUN-20 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.5-6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : AUSTRALIAN SYNCHROTRON REMARK 200 BEAMLINE : MX1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 1 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS 0.7.4 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 33253 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.980 REMARK 200 RESOLUTION RANGE LOW (A) : 44.280 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 13.50 REMARK 200 R MERGE (I) : 0.27000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 9.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.98 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.03 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.5 REMARK 200 DATA REDUNDANCY IN SHELL : 13.30 REMARK 200 R MERGE FOR SHELL (I) : 1.94000 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: PHASER REMARK 200 STARTING MODEL: 1EA1 REMARK 200 REMARK 200 REMARK: NEEDLE-SHAPED CRYSTALS REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.04 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.24 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: BIS-TRIS, PEG 3350, AMMONIUM SULFATE, REMARK 280 PH 6.5, VAPOR DIFFUSION, TEMPERATURE 289.15K 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 35.46700 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 44.85300 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 36.55600 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 44.85300 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 35.46700 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 36.55600 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 LYS A 85 REMARK 465 GLY A 86 REMARK 465 VAL A 87 REMARK 465 VAL A 88 REMARK 465 PHE A 89 REMARK 465 ASP A 90 REMARK 465 ALA A 91 REMARK 465 SER A 92 REMARK 465 PRO A 93 REMARK 465 GLU A 94 REMARK 465 ARG A 95 REMARK 465 ARG A 96 REMARK 465 LYS A 97 REMARK 465 GLU A 98 REMARK 465 MET A 99 REMARK 465 HIS A 101 REMARK 465 MET A 450 REMARK 465 SER A 451 REMARK 465 ASP A 452 REMARK 465 ASN A 453 REMARK 465 ARG A 454 REMARK 465 GLY A 455 REMARK 465 HIS A 456 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ILE A 5 CG1 CG2 CD1 REMARK 470 GLU A 131 CG CD OE1 OE2 REMARK 470 LYS A 220 CG CD CE NZ REMARK 470 THR A 233 OG1 CG2 REMARK 470 GLU A 235 CG CD OE1 OE2 REMARK 470 GLU A 372 CG CD OE1 OE2 REMARK 470 GLU A 418 CG CD OE1 OE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 NH1 ARG A 192 O HOH A 601 1.90 REMARK 500 O HOH A 900 O HOH A 909 1.91 REMARK 500 OD1 ASP A 207 O HOH A 602 1.94 REMARK 500 O1 SO4 A 507 O HOH A 603 1.99 REMARK 500 O HOH A 959 O HOH A 1038 2.01 REMARK 500 O HOH A 707 O HOH A 1022 2.02 REMARK 500 OE1 GLN A 211 O HOH A 604 2.05 REMARK 500 OD2 ASP A 135 O HOH A 605 2.10 REMARK 500 O HOH A 812 O HOH A 1004 2.10 REMARK 500 O HOH A 622 O HOH A 757 2.12 REMARK 500 O HOH A 789 O HOH A 1000 2.12 REMARK 500 O HOH A 730 O HOH A 994 2.14 REMARK 500 O HOH A 940 O HOH A 1004 2.14 REMARK 500 O HOH A 878 O HOH A 951 2.15 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 669 O HOH A 714 3454 2.08 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 ALA A 46 -123.77 58.33 REMARK 500 SER A 103 -104.48 -113.45 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A1052 DISTANCE = 5.83 ANGSTROMS REMARK 525 HOH A1053 DISTANCE = 6.50 ANGSTROMS REMARK 525 HOH A1054 DISTANCE = 6.76 ANGSTROMS 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 394 SG REMARK 620 2 HEM A 501 NA 95.3 REMARK 620 3 HEM A 501 NB 89.8 92.9 REMARK 620 4 HEM A 501 NC 88.7 175.9 87.4 REMARK 620 5 HEM A 501 ND 95.3 87.5 174.7 91.8 REMARK 620 6 HOH A 753 O 177.0 82.7 88.0 93.3 86.8 REMARK 620 N 1 2 3 4 5 DBREF 7TEF A 1 456 UNP B2HH81 B2HH81_MYCMM 1 456 SEQRES 1 A 456 MET THR THR ALA ILE VAL PRO ARG VAL SER GLY GLY GLU SEQRES 2 A 456 GLU GLU HIS GLY HIS LEU GLU GLU PHE ARG THR ASP PRO SEQRES 3 A 456 ILE GLY LEU MET GLN ARG VAL ARG ASP GLU CYS GLY ASP SEQRES 4 A 456 VAL GLY TRP PHE GLN LEU ALA ASN LYS HIS VAL VAL LEU SEQRES 5 A 456 LEU SER GLY ALA LYS ALA ASN GLU PHE PHE PHE ARG SER SEQRES 6 A 456 SER ASP GLU GLU LEU ASP GLN ALA GLU ALA TYR PRO PHE SEQRES 7 A 456 MET THR PRO ILE PHE GLY LYS GLY VAL VAL PHE ASP ALA SEQRES 8 A 456 SER PRO GLU ARG ARG LYS GLU MET LEU HIS ASN SER ALA SEQRES 9 A 456 LEU ARG GLY GLU HIS MET LYS GLY HIS ALA THR THR ILE SEQRES 10 A 456 GLU ARG GLU VAL HIS ARG MET ILE GLU ASN TRP GLY GLN SEQRES 11 A 456 GLU GLY GLU ILE ASP LEU LEU GLU PHE PHE ALA GLU LEU SEQRES 12 A 456 THR ILE TYR THR SER THR SER CYS LEU ILE GLY THR LYS SEQRES 13 A 456 PHE ARG ASN GLN LEU ASP SER ARG PHE ALA HIS PHE TYR SEQRES 14 A 456 HIS GLU LEU GLU ARG GLY THR ASP PRO LEU CYS TYR VAL SEQRES 15 A 456 ASP PRO TYR LEU PRO ILE GLU SER PHE ARG ARG ARG ASP SEQRES 16 A 456 GLU ALA ARG LYS GLY LEU VAL ALA LEU VAL GLN ASP ILE SEQRES 17 A 456 MET HIS GLN ARG VAL ALA ASN PRO PRO THR ASP LYS ARG SEQRES 18 A 456 ASP ARG ASP MET LEU ASP VAL LEU VAL SER ILE THR ASP SEQRES 19 A 456 GLU GLN GLY ASN PRO ARG PHE CYS ALA ASP GLU VAL THR SEQRES 20 A 456 GLY MET PHE ILE SER LEU MET PHE ALA GLY HIS HIS THR SEQRES 21 A 456 SER SER GLY THR SER ALA TRP THR LEU ILE GLU LEU LEU SEQRES 22 A 456 ARG HIS PRO ASP ALA TYR ALA ALA VAL ILE ASP GLU LEU SEQRES 23 A 456 ASP GLU LEU TYR ALA ASP GLY GLN PRO VAL SER PHE HIS SEQRES 24 A 456 ALA LEU ARG GLN ILE PRO ARG LEU GLU ASN VAL LEU LYS SEQRES 25 A 456 GLU THR LEU ARG LEU HIS PRO PRO LEU ILE ILE LEU MET SEQRES 26 A 456 ARG VAL ALA LYS GLY GLU PHE GLN VAL GLU GLY TYR PRO SEQRES 27 A 456 ILE HIS GLU GLY GLU LEU VAL ALA ALA SER PRO ALA ILE SEQRES 28 A 456 SER ASN ARG ILE ALA GLU ASP PHE PRO ASP PRO ASP GLU SEQRES 29 A 456 PHE VAL PRO GLU ARG TYR GLN GLU PRO ARG GLN GLU ASP SEQRES 30 A 456 LEU ILE ASN ARG TRP THR TRP ILE PRO PHE GLY ALA GLY SEQRES 31 A 456 ARG HIS ARG CYS VAL GLY ALA ALA PHE ALA THR MET GLN SEQRES 32 A 456 ILE LYS ALA ILE PHE SER VAL LEU LEU ARG GLU TYR GLU SEQRES 33 A 456 PHE GLU MET ALA GLN PRO ALA ASP SER TYR ARG ASN ASP SEQRES 34 A 456 HIS SER LYS MET VAL VAL GLN LEU ALA ARG PRO ALA ARG SEQRES 35 A 456 VAL ARG TYR ARG ARG ARG LYS MET SER ASP ASN ARG GLY SEQRES 36 A 456 HIS HET HEM A 501 45 HET BTB A 502 14 HET SO4 A 503 5 HET SO4 A 504 5 HET SO4 A 505 5 HET SO4 A 506 5 HET SO4 A 507 5 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM BTB 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL- HETNAM 2 BTB PROPANE-1,3-DIOL HETNAM SO4 SULFATE ION HETSYN HEM HEME HETSYN BTB BIS-TRIS BUFFER FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 BTB C8 H19 N O5 FORMUL 4 SO4 5(O4 S 2-) FORMUL 9 HOH *454(H2 O) HELIX 1 AA1 HIS A 18 ARG A 23 1 6 HELIX 2 AA2 ASP A 25 GLY A 38 1 14 HELIX 3 AA3 GLY A 55 SER A 65 1 11 HELIX 4 AA4 GLN A 72 PRO A 77 5 6 HELIX 5 AA5 PHE A 78 GLY A 84 1 7 HELIX 6 AA6 ARG A 106 GLU A 126 1 21 HELIX 7 AA7 LEU A 136 ILE A 153 1 18 HELIX 8 AA8 GLY A 154 GLN A 160 1 7 HELIX 9 AA9 ASP A 162 GLY A 175 1 14 HELIX 10 AB1 THR A 176 VAL A 182 5 7 HELIX 11 AB2 ILE A 188 ASN A 215 1 28 HELIX 12 AB3 ASP A 219 ARG A 223 5 5 HELIX 13 AB4 ASP A 224 ILE A 232 1 9 HELIX 14 AB5 CYS A 242 HIS A 275 1 34 HELIX 15 AB6 HIS A 275 ALA A 291 1 17 HELIX 16 AB7 PRO A 295 ALA A 300 1 6 HELIX 17 AB8 ILE A 304 HIS A 318 1 15 HELIX 18 AB9 SER A 348 ASN A 353 1 6 HELIX 19 AC1 VAL A 366 GLN A 371 5 6 HELIX 20 AC2 GLY A 396 GLU A 414 1 19 HELIX 21 AC3 PRO A 422 TYR A 426 5 5 SHEET 1 AA1 5 VAL A 40 LEU A 45 0 SHEET 2 AA1 5 LYS A 48 LEU A 53 -1 O VAL A 50 N PHE A 43 SHEET 3 AA1 5 LEU A 344 ALA A 347 1 O LEU A 344 N VAL A 51 SHEET 4 AA1 5 LEU A 324 ALA A 328 -1 N LEU A 324 O ALA A 347 SHEET 5 AA1 5 LEU A 70 ASP A 71 -1 N ASP A 71 O VAL A 327 SHEET 1 AA2 3 GLU A 131 ASP A 135 0 SHEET 2 AA2 3 ARG A 442 ARG A 447 -1 O VAL A 443 N ILE A 134 SHEET 3 AA2 3 TYR A 415 MET A 419 -1 N GLU A 418 O ARG A 444 SHEET 1 AA3 2 PHE A 332 VAL A 334 0 SHEET 2 AA3 2 TYR A 337 ILE A 339 -1 O TYR A 337 N VAL A 334 SHEET 1 AA4 2 GLY A 388 ALA A 389 0 SHEET 2 AA4 2 HIS A 392 ARG A 393 -1 O HIS A 392 N ALA A 389 SHEET 1 AA5 2 ASN A 428 ASP A 429 0 SHEET 2 AA5 2 GLN A 436 LEU A 437 -1 O GLN A 436 N ASP A 429 LINK SG CYS A 394 FE HEM A 501 1555 1555 2.39 LINK FE HEM A 501 O HOH A 753 1555 1555 2.46 CISPEP 1 ARG A 439 PRO A 440 0 -3.12 CRYST1 70.934 73.112 89.706 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 0.014098 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013678 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011148 0.00000