HEADER OXIDOREDUCTASE 18-AUG-04 1X8V TITLE ESTRIOL-BOUND AND LIGAND-FREE STRUCTURES OF STEROL 14ALPHA-DEMETHYLASE TITLE 2 (CYP51) COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450 51; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CYPLI, P450-LIA1, STEROL 14-ALPHA DEMETHYLASE, LANOSTEROL COMPND 5 14-ALPHA DEMETHYLASE, P450-14DM; COMPND 6 EC: 1.14.13.70; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MYCOBACTERIUM TUBERCULOSIS; SOURCE 3 ORGANISM_TAXID: 1773; SOURCE 4 GENE: CYP51; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: HMS174(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET17B KEYWDS ALPHA-BETA, HEME CO-FACTOR, PROTEIN-ESTRIOL COMPLEX, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR L.M.PODUST,L.V.YERMALITSKAYA,G.I.LEPESHEVA,V.N.PODUST,E.A.DALMASSO, AUTHOR 2 M.R.WATERMAN REVDAT 4 23-AUG-23 1X8V 1 REMARK REVDAT 3 20-OCT-21 1X8V 1 REMARK SEQADV REVDAT 2 24-FEB-09 1X8V 1 VERSN REVDAT 1 23-NOV-04 1X8V 0 JRNL AUTH L.M.PODUST,L.V.YERMALITSKAYA,G.I.LEPESHEVA,V.N.PODUST, JRNL AUTH 2 E.A.DALMASSO,M.R.WATERMAN JRNL TITL ESTRIOL BOUND AND LIGAND-FREE STRUCTURES OF STEROL JRNL TITL 2 14ALPHA-DEMETHYLASE. JRNL REF STRUCTURE V. 12 1937 2004 JRNL REFN ISSN 0969-2126 JRNL PMID 15530358 JRNL DOI 10.1016/J.STR.2004.08.009 REMARK 2 REMARK 2 RESOLUTION. 1.55 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) : 1.55 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.50 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 869366.500 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.4 REMARK 3 NUMBER OF REFLECTIONS : 60253 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) : 0.206 REMARK 3 FREE R VALUE : 0.227 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.100 REMARK 3 FREE R VALUE TEST SET COUNT : 6064 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.003 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) : 1.55 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.65 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 78.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 7504 REMARK 3 BIN R VALUE (WORKING SET) : 0.2750 REMARK 3 BIN FREE R VALUE : 0.2950 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.20 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 849 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.010 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3417 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 85 REMARK 3 SOLVENT ATOMS : 319 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.50 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 8.27000 REMARK 3 B22 (A**2) : -2.21000 REMARK 3 B33 (A**2) : -6.06000 REMARK 3 B12 (A**2) : 0.00000 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) : 0.19 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) : 0.21 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.18 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 19.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.850 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) : 1.440 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.320 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.710 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 4.360 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.42 REMARK 3 BSOL : 64.61 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : HEM.PAR REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER_REP.TOP REMARK 3 TOPOLOGY FILE 3 : HEM.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1X8V COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-AUG-04. REMARK 100 THE DEPOSITION ID IS D_1000030085. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-MAR-04 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 22-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : SI (220) DOUBLE CRYSTAL REMARK 200 OPTICS : SAGITTAL FOCUSING CRYSTAL AND REMARK 200 VERTICALLY FOCUSING MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 63041 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.550 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 (%) : 96.7 REMARK 200 DATA REDUNDANCY : 4.200 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07300 REMARK 200 FOR THE DATA SET : 31.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.55 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.61 REMARK 200 COMPLETENESS FOR SHELL (%) : 85.3 REMARK 200 DATA REDUNDANCY IN SHELL : 3.20 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.37000 REMARK 200 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: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1E9X REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.12 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, ISOPROPANOL, HEPES, PH 7.5, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K 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 23.58050 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 55.40550 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 42.26100 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 55.40550 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.58050 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 42.26100 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 300 REMARK: BIOLOGICAL UNIT 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 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 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 PRO A 217 REMARK 465 THR A 218 REMARK 465 ASP A 219 REMARK 465 LYS A 220 REMARK 465 SER A 221 REMARK 465 ASP A 222 REMARK 465 GLU A 235 REMARK 465 THR A 236 REMARK 465 GLY A 237 REMARK 465 GLY A 450 REMARK 465 VAL A 451 REMARK 465 HIS A 452 REMARK 465 HIS A 453 REMARK 465 HIS A 454 REMARK 465 HIS A 455 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 SER A 2 OG REMARK 470 ARG A 95 CG CD NE CZ NH1 NH2 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 HIS A 16 41.34 -105.96 REMARK 500 ASP A 25 71.70 -151.74 REMARK 500 ALA A 46 -123.30 61.51 REMARK 500 ASP A 183 123.60 -173.00 REMARK 500 ASP A 224 -166.48 -105.20 REMARK 500 ASN A 380 62.14 -103.97 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 470 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 394 SG REMARK 620 2 HEM A 470 NA 94.2 REMARK 620 3 HEM A 470 NB 83.5 90.3 REMARK 620 4 HEM A 470 NC 87.1 178.7 90.0 REMARK 620 5 HEM A 470 ND 98.0 90.0 178.4 89.7 REMARK 620 N 1 2 3 4 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 470 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ESL A 471 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ESL A 472 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1E9X RELATED DB: PDB REMARK 900 PROTEIN COMPLEXED WITH 4-PHENYLIMIDAZOLE REMARK 900 RELATED ID: 1EA1 RELATED DB: PDB REMARK 900 PROTEIN COMPLEXED WITH FLUCONAZOLE REMARK 900 RELATED ID: 1H5Z RELATED DB: PDB REMARK 900 LIGAND-FREE WILD TYPE REMARK 900 RELATED ID: 1U13 RELATED DB: PDB REMARK 900 LIGAND-FREE C37L/C151T/C442A TRIPLE MUTANT DBREF 1X8V A 1 451 UNP P0A512 CP51_MYCTU 1 451 SEQADV 1X8V LEU A 37 UNP P0A512 CYS 37 ENGINEERED MUTATION SEQADV 1X8V ALA A 442 UNP P0A512 CYS 442 ENGINEERED MUTATION SEQADV 1X8V HIS A 452 UNP P0A512 EXPRESSION TAG SEQADV 1X8V HIS A 453 UNP P0A512 EXPRESSION TAG SEQADV 1X8V HIS A 454 UNP P0A512 EXPRESSION TAG SEQADV 1X8V HIS A 455 UNP P0A512 EXPRESSION TAG SEQRES 1 A 455 MET SER ALA VAL ALA LEU PRO ARG VAL SER GLY GLY HIS SEQRES 2 A 455 ASP GLU HIS GLY HIS LEU GLU GLU PHE ARG THR ASP PRO SEQRES 3 A 455 ILE GLY LEU MET GLN ARG VAL ARG ASP GLU LEU GLY ASP SEQRES 4 A 455 VAL GLY THR PHE GLN LEU ALA GLY LYS GLN VAL VAL LEU SEQRES 5 A 455 LEU SER GLY SER HIS ALA ASN GLU PHE PHE PHE ARG ALA SEQRES 6 A 455 GLY ASP ASP ASP LEU ASP GLN ALA LYS ALA TYR PRO PHE SEQRES 7 A 455 MET THR PRO ILE PHE GLY GLU GLY VAL VAL PHE ASP ALA SEQRES 8 A 455 SER PRO GLU ARG ARG LYS GLU MET LEU HIS ASN ALA ALA SEQRES 9 A 455 LEU ARG GLY GLU GLN MET LYS GLY HIS ALA ALA THR ILE SEQRES 10 A 455 GLU ASP GLN VAL ARG ARG MET ILE ALA ASP TRP GLY GLU SEQRES 11 A 455 ALA GLY GLU ILE ASP LEU LEU ASP PHE PHE ALA GLU LEU SEQRES 12 A 455 THR ILE TYR THR SER SER ALA CYS LEU ILE GLY LYS LYS SEQRES 13 A 455 PHE ARG ASP GLN LEU ASP GLY ARG PHE ALA LYS LEU TYR SEQRES 14 A 455 HIS GLU LEU GLU ARG GLY THR ASP PRO LEU ALA TYR VAL SEQRES 15 A 455 ASP PRO TYR LEU PRO ILE GLU SER PHE ARG ARG ARG ASP SEQRES 16 A 455 GLU ALA ARG ASN GLY LEU VAL ALA LEU VAL ALA ASP ILE SEQRES 17 A 455 MET ASN GLY ARG ILE ALA ASN PRO PRO THR ASP LYS SER SEQRES 18 A 455 ASP ARG ASP MET LEU ASP VAL LEU ILE ALA VAL LYS ALA SEQRES 19 A 455 GLU THR GLY THR PRO ARG PHE SER ALA ASP GLU ILE THR SEQRES 20 A 455 GLY MET PHE ILE SER MET MET PHE ALA GLY HIS HIS THR SEQRES 21 A 455 SER SER GLY THR ALA SER TRP THR LEU ILE GLU LEU MET SEQRES 22 A 455 ARG HIS ARG ASP ALA TYR ALA ALA VAL ILE ASP GLU LEU SEQRES 23 A 455 ASP GLU LEU TYR GLY ASP GLY ARG SER VAL SER PHE HIS SEQRES 24 A 455 ALA LEU ARG GLN ILE PRO GLN LEU GLU ASN VAL LEU LYS SEQRES 25 A 455 GLU THR LEU ARG LEU HIS PRO PRO LEU ILE ILE LEU MET SEQRES 26 A 455 ARG VAL ALA LYS GLY GLU PHE GLU VAL GLN GLY HIS ARG SEQRES 27 A 455 ILE HIS GLU GLY ASP LEU VAL ALA ALA SER PRO ALA ILE SEQRES 28 A 455 SER ASN ARG ILE PRO GLU ASP PHE PRO ASP PRO HIS ASP SEQRES 29 A 455 PHE VAL PRO ALA ARG TYR GLU GLN PRO ARG GLN GLU ASP SEQRES 30 A 455 LEU LEU ASN ARG TRP THR TRP ILE PRO PHE GLY ALA GLY SEQRES 31 A 455 ARG HIS ARG CYS VAL GLY ALA ALA PHE ALA ILE MET GLN SEQRES 32 A 455 ILE LYS ALA ILE PHE SER VAL LEU LEU ARG GLU TYR GLU SEQRES 33 A 455 PHE GLU MET ALA GLN PRO PRO GLU SER TYR ARG ASN ASP SEQRES 34 A 455 HIS SER LYS MET VAL VAL GLN LEU ALA GLN PRO ALA ALA SEQRES 35 A 455 VAL ARG TYR ARG ARG ARG THR GLY VAL HIS HIS HIS HIS HET HEM A 470 43 HET ESL A 471 21 HET ESL A 472 21 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM ESL ESTRIOL HETSYN HEM HEME HETSYN ESL 1,3,5(10)-ESTRATRIENE-3,16,17-TRIOL FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 ESL 2(C18 H24 O3) FORMUL 5 HOH *319(H2 O) HELIX 1 1 HIS A 18 ASP A 25 1 8 HELIX 2 2 ASP A 25 GLY A 38 1 14 HELIX 3 3 GLY A 55 ALA A 65 1 11 HELIX 4 4 TYR A 76 PHE A 78 5 3 HELIX 5 5 MET A 79 GLY A 84 1 6 HELIX 6 6 ARG A 95 HIS A 101 1 7 HELIX 7 7 ASN A 102 GLU A 108 5 7 HELIX 8 8 GLN A 109 ALA A 126 1 18 HELIX 9 9 LEU A 136 ILE A 153 1 18 HELIX 10 10 GLY A 154 ASP A 159 1 6 HELIX 11 11 ASP A 162 ARG A 174 1 13 HELIX 12 12 GLY A 175 THR A 176 5 2 HELIX 13 13 ASP A 177 VAL A 182 5 6 HELIX 14 14 ILE A 188 ASN A 215 1 28 HELIX 15 15 ASP A 224 VAL A 232 1 9 HELIX 16 16 SER A 242 HIS A 275 1 34 HELIX 17 17 HIS A 275 TYR A 290 1 16 HELIX 18 18 GLY A 291 GLY A 293 5 3 HELIX 19 19 SER A 295 ALA A 300 1 6 HELIX 20 20 ILE A 304 HIS A 318 1 15 HELIX 21 21 SER A 348 ASN A 353 1 6 HELIX 22 22 VAL A 366 GLU A 371 5 6 HELIX 23 23 GLN A 375 ASN A 380 1 6 HELIX 24 24 ALA A 389 ARG A 393 5 5 HELIX 25 25 GLY A 396 GLU A 414 1 19 HELIX 26 26 PRO A 422 TYR A 426 5 5 SHEET 1 A 5 VAL A 40 LEU A 45 0 SHEET 2 A 5 LYS A 48 LEU A 53 -1 O LYS A 48 N LEU A 45 SHEET 3 A 5 LEU A 344 ALA A 347 1 O ALA A 346 N LEU A 53 SHEET 4 A 5 LEU A 324 ALA A 328 -1 N LEU A 324 O ALA A 347 SHEET 5 A 5 LEU A 70 ASP A 71 -1 N ASP A 71 O VAL A 327 SHEET 1 B 3 ALA A 131 ASP A 135 0 SHEET 2 B 3 ALA A 442 ARG A 447 -1 O VAL A 443 N ILE A 134 SHEET 3 B 3 TYR A 415 MET A 419 -1 N GLU A 418 O ARG A 444 SHEET 1 C 2 PHE A 332 VAL A 334 0 SHEET 2 C 2 HIS A 337 ILE A 339 -1 O ILE A 339 N PHE A 332 SHEET 1 D 2 ASN A 428 ASP A 429 0 SHEET 2 D 2 GLN A 436 LEU A 437 -1 O GLN A 436 N ASP A 429 LINK SG CYS A 394 FE HEM A 470 1555 1555 2.45 CISPEP 1 GLN A 439 PRO A 440 0 0.12 SITE 1 AC1 19 GLN A 72 TYR A 76 LYS A 97 HIS A 101 SITE 2 AC1 19 LEU A 105 ALA A 256 GLY A 257 THR A 260 SITE 3 AC1 19 SER A 261 PRO A 320 ARG A 326 PRO A 386 SITE 4 AC1 19 PHE A 387 GLY A 388 HIS A 392 CYS A 394 SITE 5 AC1 19 VAL A 395 ALA A 400 HOH A 537 SITE 1 AC2 10 TYR A 76 ARG A 96 ALA A 256 HIS A 259 SITE 2 AC2 10 LEU A 321 ILE A 323 MET A 433 HOH A 557 SITE 3 AC2 10 HOH A 579 HOH A 629 SITE 1 AC3 8 MET A 99 MET A 225 LEU A 229 ALA A 420 SITE 2 AC3 8 PRO A 422 HOH A 669 HOH A 685 HOH A 754 CRYST1 47.161 84.522 110.811 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 0.021204 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011831 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009024 0.00000