HEADER OXIDOREDUCTASE 30-OCT-07 2ZBZ TITLE CRYSTAL STRUCTURE OF VITAMIN D HYDROXYLASE CYTOCHROME P450 105A1 (R84A TITLE 2 MUTANT) IN COMPLEX WITH 1,25-DIHYDROXYVITAMIN D3 COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450-SU1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: P450-CVA1, CYP105A1; COMPND 5 EC: 1.14.14.1; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES GRISEOLUS; SOURCE 3 ORGANISM_TAXID: 1909; SOURCE 4 STRAIN: ATCC 11796; SOURCE 5 GENE: CYP105A1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: JM109; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PKK223-3 KEYWDS P450, BETA PRISM, HEME, IRON, METAL-BINDING, MONOOXYGENASE, KEYWDS 2 OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR H.SUGIMOTO,R.SHINKYO,K.HAYASHI,S.YONEDA,M.YAMADA,M.KAMAKURA, AUTHOR 2 S.IKUSHIRO,Y.SHIRO,T.SAKAKI REVDAT 4 01-NOV-23 2ZBZ 1 REMARK REVDAT 3 10-NOV-21 2ZBZ 1 REMARK SEQADV REVDAT 2 24-FEB-09 2ZBZ 1 VERSN REVDAT 1 08-APR-08 2ZBZ 0 JRNL AUTH H.SUGIMOTO,R.SHINKYO,K.HAYASHI,S.YONEDA,M.YAMADA,M.KAMAKURA, JRNL AUTH 2 S.IKUSHIRO,Y.SHIRO,T.SAKAKI JRNL TITL CRYSTAL STRUCTURE OF CYP105A1 (P450SU-1) IN COMPLEX WITH JRNL TITL 2 1ALPHA,25-DIHYDROXYVITAMIN D3 JRNL REF BIOCHEMISTRY V. 47 4017 2008 JRNL REFN ISSN 0006-2960 JRNL PMID 18314962 JRNL DOI 10.1021/BI7023767 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.74 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 3 NUMBER OF REFLECTIONS : 30443 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 + TEST SET) : 0.200 REMARK 3 R VALUE (WORKING SET) : 0.198 REMARK 3 FREE R VALUE : 0.242 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1614 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.95 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2185 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.62 REMARK 3 BIN R VALUE (WORKING SET) : 0.2270 REMARK 3 BIN FREE R VALUE SET COUNT : 108 REMARK 3 BIN FREE R VALUE : 0.2690 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3090 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 73 REMARK 3 SOLVENT ATOMS : 319 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 20.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.20000 REMARK 3 B22 (A**2) : -0.57000 REMARK 3 B33 (A**2) : -0.63000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.176 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.158 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.102 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.388 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.944 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.914 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 3233 ; 0.007 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 4428 ; 1.099 ; 2.025 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 403 ; 4.837 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 143 ;33.832 ;23.566 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 501 ;11.982 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 29 ;16.785 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 509 ; 0.071 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2479 ; 0.003 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1587 ; 0.184 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 2256 ; 0.295 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 282 ; 0.099 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 68 ; 0.205 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 25 ; 0.105 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 2080 ; 0.440 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 3254 ; 0.767 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1283 ; 0.978 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1172 ; 1.575 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 2ZBZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 06-NOV-07. REMARK 100 THE DEPOSITION ID IS D_1000027779. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-APR-07 REMARK 200 TEMPERATURE (KELVIN) : 90 REMARK 200 PH : 6.6 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) : 1.00 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 32117 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 7.200 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05600 REMARK 200 FOR THE DATA SET : 26.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.97 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 6.90 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.31600 REMARK 200 FOR SHELL : 6.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: REFMAC 5.2.0019 REMARK 200 STARTING MODEL: PDB ENTRY 2ZBY REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.09 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 26% PEG MME 2000, 0.1M BIS-TRIS, 0.2M REMARK 280 SODIUM CHLORIDE, PH 6.6, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 283K 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 26.57600 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 69.44050 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 26.83550 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 69.44050 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 26.57600 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 26.83550 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 MET A 1 REMARK 465 THR A 2 REMARK 465 ASP A 3 REMARK 465 HIS A 408 REMARK 465 HIS A 409 REMARK 465 HIS A 410 REMARK 465 HIS A 411 REMARK 465 HIS A 412 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 72 98.04 -69.79 REMARK 500 ARG A 89 40.93 -86.79 REMARK 500 THR A 143 69.58 71.07 REMARK 500 PHE A 150 -56.12 -150.58 REMARK 500 ASP A 222 -86.55 -107.67 REMARK 500 ALA A 289 70.03 28.08 REMARK 500 ALA A 291 51.42 -113.13 REMARK 500 ASP A 332 71.54 45.48 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 413 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 355 SG REMARK 620 2 HEM A 413 NA 106.8 REMARK 620 3 HEM A 413 NB 93.8 89.6 REMARK 620 4 HEM A 413 NC 88.9 164.3 88.7 REMARK 620 5 HEM A 413 ND 101.6 88.3 164.4 89.1 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 413 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE VDX A 501 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2ZBX RELATED DB: PDB REMARK 900 WILD TYPE ENZYME WITH IMIDAZOLE BOUND TO HEME IRON REMARK 900 RELATED ID: 2ZBY RELATED DB: PDB REMARK 900 R84A MUTANT REMARK 999 REMARK 999 SEQUENCE REMARK 999 THERE IS A CONFLICT BETWEEN THE SEQUENCES GIVEN IN THE REMARK 999 DEPOSITION AND THE DATABASE. ACCORDING TO THE DEPOSITOR, THE REMARK 999 308TH RESIDUE IS GLN AND IT OCCURS NATURALLY AS VARIANT IN REMARK 999 STREPTOMYCES GRISEOLUS. DBREF 2ZBZ A 1 406 UNP P18326 CPXE_STRGO 1 406 SEQADV 2ZBZ ALA A 84 UNP P18326 ARG 84 ENGINEERED MUTATION SEQADV 2ZBZ GLN A 308 UNP P18326 HIS 308 SEE REMARK 999 SEQADV 2ZBZ HIS A 407 UNP P18326 EXPRESSION TAG SEQADV 2ZBZ HIS A 408 UNP P18326 EXPRESSION TAG SEQADV 2ZBZ HIS A 409 UNP P18326 EXPRESSION TAG SEQADV 2ZBZ HIS A 410 UNP P18326 EXPRESSION TAG SEQADV 2ZBZ HIS A 411 UNP P18326 EXPRESSION TAG SEQADV 2ZBZ HIS A 412 UNP P18326 EXPRESSION TAG SEQRES 1 A 412 MET THR ASP THR ALA THR THR PRO GLN THR THR ASP ALA SEQRES 2 A 412 PRO ALA PHE PRO SER ASN ARG SER CYS PRO TYR GLN LEU SEQRES 3 A 412 PRO ASP GLY TYR ALA GLN LEU ARG ASP THR PRO GLY PRO SEQRES 4 A 412 LEU HIS ARG VAL THR LEU TYR ASP GLY ARG GLN ALA TRP SEQRES 5 A 412 VAL VAL THR LYS HIS GLU ALA ALA ARG LYS LEU LEU GLY SEQRES 6 A 412 ASP PRO ARG LEU SER SER ASN ARG THR ASP ASP ASN PHE SEQRES 7 A 412 PRO ALA THR SER PRO ALA PHE GLU ALA VAL ARG GLU SER SEQRES 8 A 412 PRO GLN ALA PHE ILE GLY LEU ASP PRO PRO GLU HIS GLY SEQRES 9 A 412 THR ARG ARG ARG MET THR ILE SER GLU PHE THR VAL LYS SEQRES 10 A 412 ARG ILE LYS GLY MET ARG PRO GLU VAL GLU GLU VAL VAL SEQRES 11 A 412 HIS GLY PHE LEU ASP GLU MET LEU ALA ALA GLY PRO THR SEQRES 12 A 412 ALA ASP LEU VAL SER GLN PHE ALA LEU PRO VAL PRO SER SEQRES 13 A 412 MET VAL ILE CYS ARG LEU LEU GLY VAL PRO TYR ALA ASP SEQRES 14 A 412 HIS GLU PHE PHE GLN ASP ALA SER LYS ARG LEU VAL GLN SEQRES 15 A 412 SER THR ASP ALA GLN SER ALA LEU THR ALA ARG ASN ASP SEQRES 16 A 412 LEU ALA GLY TYR LEU ASP GLY LEU ILE THR GLN PHE GLN SEQRES 17 A 412 THR GLU PRO GLY ALA GLY LEU VAL GLY ALA LEU VAL ALA SEQRES 18 A 412 ASP GLN LEU ALA ASN GLY GLU ILE ASP ARG GLU GLU LEU SEQRES 19 A 412 ILE SER THR ALA MET LEU LEU LEU ILE ALA GLY HIS GLU SEQRES 20 A 412 THR THR ALA SER MET THR SER LEU SER VAL ILE THR LEU SEQRES 21 A 412 LEU ASP HIS PRO GLU GLN TYR ALA ALA LEU ARG ALA ASP SEQRES 22 A 412 ARG SER LEU VAL PRO GLY ALA VAL GLU GLU LEU LEU ARG SEQRES 23 A 412 TYR LEU ALA ILE ALA ASP ILE ALA GLY GLY ARG VAL ALA SEQRES 24 A 412 THR ALA ASP ILE GLU VAL GLU GLY GLN LEU ILE ARG ALA SEQRES 25 A 412 GLY GLU GLY VAL ILE VAL VAL ASN SER ILE ALA ASN ARG SEQRES 26 A 412 ASP GLY THR VAL TYR GLU ASP PRO ASP ALA LEU ASP ILE SEQRES 27 A 412 HIS ARG SER ALA ARG HIS HIS LEU ALA PHE GLY PHE GLY SEQRES 28 A 412 VAL HIS GLN CYS LEU GLY GLN ASN LEU ALA ARG LEU GLU SEQRES 29 A 412 LEU GLU VAL ILE LEU ASN ALA LEU MET ASP ARG VAL PRO SEQRES 30 A 412 THR LEU ARG LEU ALA VAL PRO VAL GLU GLN LEU VAL LEU SEQRES 31 A 412 ARG PRO GLY THR THR ILE GLN GLY VAL ASN GLU LEU PRO SEQRES 32 A 412 VAL THR TRP HIS HIS HIS HIS HIS HIS HET HEM A 413 43 HET VDX A 501 30 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM VDX 5-{2-[1-(5-HYDROXY-1,5-DIMETHYL-HEXYL)-7A-METHYL- HETNAM 2 VDX OCTAHYDRO-INDEN-4-YLIDENE]-ETHYLIDENE}-4-METHYLENE- HETNAM 3 VDX CYCLOHEXANE-1,3-DIOL HETSYN HEM HEME HETSYN VDX 1,25 DIHYDROXY VITAMIN D3 FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 VDX C27 H44 O3 FORMUL 4 HOH *319(H2 O) HELIX 1 1 PRO A 27 THR A 36 1 10 HELIX 2 2 LYS A 56 ASP A 66 1 11 HELIX 3 3 SER A 82 VAL A 88 5 7 HELIX 4 4 ALA A 94 LEU A 98 5 5 HELIX 5 5 PRO A 101 ARG A 108 1 8 HELIX 6 6 MET A 109 PHE A 114 5 6 HELIX 7 7 THR A 115 ALA A 140 1 26 HELIX 8 8 LEU A 146 PHE A 150 1 5 HELIX 9 9 LEU A 152 GLY A 164 1 13 HELIX 10 10 PRO A 166 ALA A 168 5 3 HELIX 11 11 ASP A 169 GLN A 182 1 14 HELIX 12 12 ASP A 185 GLU A 210 1 26 HELIX 13 13 GLY A 214 ASP A 222 1 9 HELIX 14 14 ASP A 230 ASP A 262 1 33 HELIX 15 15 HIS A 263 ASP A 273 1 11 HELIX 16 16 LEU A 276 ALA A 289 1 14 HELIX 17 17 VAL A 319 ASN A 324 1 6 HELIX 18 18 GLY A 357 VAL A 376 1 20 HELIX 19 19 PRO A 384 LEU A 388 5 5 SHEET 1 A 5 LEU A 40 THR A 44 0 SHEET 2 A 5 GLN A 50 VAL A 54 -1 O VAL A 53 N HIS A 41 SHEET 3 A 5 GLY A 315 VAL A 318 1 O GLY A 315 N TRP A 52 SHEET 4 A 5 GLY A 296 ALA A 299 -1 N ARG A 297 O VAL A 316 SHEET 5 A 5 LEU A 69 SER A 70 -1 N SER A 70 O VAL A 298 SHEET 1 B 3 ALA A 144 ASP A 145 0 SHEET 2 B 3 PRO A 403 THR A 405 -1 O VAL A 404 N ALA A 144 SHEET 3 B 3 ARG A 380 LEU A 381 -1 N ARG A 380 O THR A 405 SHEET 1 C 2 ILE A 303 VAL A 305 0 SHEET 2 C 2 GLN A 308 ILE A 310 -1 O GLN A 308 N VAL A 305 LINK SG CYS A 355 FE HEM A 413 1555 1555 2.36 CISPEP 1 PHE A 16 PRO A 17 0 2.23 CISPEP 2 PRO A 100 PRO A 101 0 2.85 SITE 1 AC1 20 PHE A 95 ILE A 96 HIS A 103 ARG A 107 SITE 2 AC1 20 LEU A 241 ALA A 244 THR A 248 THR A 249 SITE 3 AC1 20 ALA A 294 ARG A 297 ALA A 347 PHE A 348 SITE 4 AC1 20 GLY A 349 HIS A 353 CYS A 355 GLY A 357 SITE 5 AC1 20 ALA A 361 HOH A 508 HOH A 511 HOH A 575 SITE 1 AC2 14 THR A 81 ALA A 84 PHE A 85 SER A 91 SITE 2 AC2 14 LEU A 180 ARG A 193 SER A 236 ILE A 243 SITE 3 AC2 14 ILE A 293 ALA A 294 THR A 394 HOH A 658 SITE 4 AC2 14 HOH A 693 HOH A 749 CRYST1 53.152 53.671 138.881 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 0.018814 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018632 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007200 0.00000