1AHI - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 25-AUG-95 1AHI

TITLE 7 ALPHA-HYDROXYSTEROID DEHYDROGENASE COMPLEXED WITH NADH AND 7-OXO TITLE 2 GLYCOCHENODEOXYCHOLIC ACID

COMPND MOL_ID: 1; COMPND 2 MOLECULE: 7 ALPHA-HYDROXYSTEROID DEHYDROGENASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 1.1.1.159; COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 STRAIN: HB101; SOURCE 5 CELL_LINE: HB101; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: DH1; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: HB101

KEYWDS OXIDOREDUCTASE, SHORT-CHAIN DEHYDROGENASE/REDUCTASE,

EXPDTA X-RAY DIFFRACTION

AUTHOR N.TANAKA,T.NONAKA,Y.MITSUI

REVDAT 4 30-OCT-13 1AHI 1 HETATM HETNAM REMARK REVDAT 3 13-JUL-11 1AHI 1 VERSN REVDAT 2 24-FEB-09 1AHI 1 VERSN REVDAT 1 14-OCT-96 1AHI 0

JRNL AUTH N.TANAKA,T.NONAKA,T.TANABE,T.YOSHIMOTO,D.TSURU,Y.MITSUI JRNL TITL CRYSTAL STRUCTURES OF THE BINARY AND TERNARY COMPLEXES OF 7 JRNL TITL 2 ALPHA-HYDROXYSTEROID DEHYDROGENASE FROM ESCHERICHIA COLI. JRNL REF BIOCHEMISTRY V. 35 7715 1996 JRNL REFN ISSN 0006-2960 JRNL PMID 8672472 JRNL DOI 10.1021/BI951904D

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH N.TANAKA,T.NONAKA,T.YOSHIMOTO,D.TSURU,Y.MITSUI REMARK 1 TITL CRYSTALLIZATION AND PRELIMINARY X-RAY CRYSTALLOGRAPHIC REMARK 1 TITL 2 STUDIES OF 7ALPHA-HYDROXYSTEROID DEHYDROGENASE FROM REMARK 1 TITL 3 ESCHERICHIA COLI REMARK 1 REF TO BE PUBLISHED REMARK 1 REFN REMARK 1 REFERENCE 2 REMARK 1 AUTH T.YOSHIMOTO,H.HIGASHI,A.KANATANI,X.S.LIN,H.NAGAI,H.OYAMA, REMARK 1 AUTH 2 K.KURAZONO,D.TSURU REMARK 1 TITL CLONING AND SEQUENCING OF THE 7 ALPHA-HYDROXYSTEROID REMARK 1 TITL 2 DEHYDROGENASE GENE FROM ESCHERICHIA COLI HB101 AND REMARK 1 TITL 3 CHARACTERIZATION OF THE EXPRESSED ENZYME REMARK 1 REF J.BACTERIOL. V. 173 2173 1991 REMARK 1 REFN ISSN 0021-9193

REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 86.6 REMARK 3 NUMBER OF REFLECTIONS : 27967 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.180 REMARK 3 FREE R VALUE : 0.250 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL 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 : 3752 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 144 REMARK 3 SOLVENT ATOMS : 104 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 32.10 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) : 0.25 REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : 1.58 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.10 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.38 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 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 1AHI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 19-NOV-94 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : SUPPER LONG MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : PROCESS REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28878 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 76.700 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.9 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : 0.08900 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR 3.1 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 62.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.33 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 8.5

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 107.32500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 40.79500 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 40.79500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 53.66250 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 40.79500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 40.79500 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 160.98750 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 40.79500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 40.79500 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 53.66250 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 40.79500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 40.79500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 160.98750 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 107.32500 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 22600 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 30320 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -135.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 350 BIOMT1 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000

REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU A 150 CG GLU A 150 CD 0.138 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 PRO B 101 C - N - CA ANGL. DEV. = 9.7 DEGREES 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 LEU A 58 3.13 -68.27 REMARK 500 ARG A 66 74.83 -101.26 REMARK 500 THR A 70 46.03 -78.23 REMARK 500 VAL A 119 -61.37 -120.82 REMARK 500 THR A 145 -128.21 -90.32 REMARK 500 ALA A 191 91.76 -65.65 REMARK 500 LEU A 193 89.14 -68.15 REMARK 500 ARG A 216 77.65 -57.89 REMARK 500 SER A 247 21.96 -154.26 REMARK 500 VAL B 119 -59.10 -121.34 REMARK 500 THR B 145 -135.57 -92.03 REMARK 500 LEU B 193 86.06 -66.40 REMARK 500 ARG B 216 72.58 -60.25 REMARK 500 SER B 247 10.92 -143.39 REMARK 500 REMARK 500 REMARK: NULL

REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 CHO A 301 REMARK 610 CHO B 301

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CHO A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAI A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CHO B 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAI B 302

DBREF 1AHI A 1 255 UNP P25529 HDHA_ECOLI 1 255 DBREF 1AHI B 1 255 UNP P25529 HDHA_ECOLI 1 255

SEQRES 1 A 255 MET PHE ASN SER ASP ASN LEU ARG LEU ASP GLY LYS CYS SEQRES 2 A 255 ALA ILE ILE THR GLY ALA GLY ALA GLY ILE GLY LYS GLU SEQRES 3 A 255 ILE ALA ILE THR PHE ALA THR ALA GLY ALA SER VAL VAL SEQRES 4 A 255 VAL SER ASP ILE ASN ALA ASP ALA ALA ASN HIS VAL VAL SEQRES 5 A 255 ASP GLU ILE GLN GLN LEU GLY GLY GLN ALA PHE ALA CYS SEQRES 6 A 255 ARG CYS ASP ILE THR SER GLU GLN GLU LEU SER ALA LEU SEQRES 7 A 255 ALA ASP PHE ALA ILE SER LYS LEU GLY LYS VAL ASP ILE SEQRES 8 A 255 LEU VAL ASN ASN ALA GLY GLY GLY GLY PRO LYS PRO PHE SEQRES 9 A 255 ASP MET PRO MET ALA ASP PHE ARG ARG ALA TYR GLU LEU SEQRES 10 A 255 ASN VAL PHE SER PHE PHE HIS LEU SER GLN LEU VAL ALA SEQRES 11 A 255 PRO GLU MET GLU LYS ASN GLY GLY GLY VAL ILE LEU THR SEQRES 12 A 255 ILE THR SER MET ALA ALA GLU ASN LYS ASN ILE ASN MET SEQRES 13 A 255 THR SER TYR ALA SER SER LYS ALA ALA ALA SER HIS LEU SEQRES 14 A 255 VAL ARG ASN MET ALA PHE ASP LEU GLY GLU LYS ASN ILE SEQRES 15 A 255 ARG VAL ASN GLY ILE ALA PRO GLY ALA ILE LEU THR ASP SEQRES 16 A 255 ALA LEU LYS SER VAL ILE THR PRO GLU ILE GLU GLN LYS SEQRES 17 A 255 MET LEU GLN HIS THR PRO ILE ARG ARG LEU GLY GLN PRO SEQRES 18 A 255 GLN ASP ILE ALA ASN ALA ALA LEU PHE LEU CYS SER PRO SEQRES 19 A 255 ALA ALA SER TRP VAL SER GLY GLN ILE LEU THR VAL SER SEQRES 20 A 255 GLY GLY GLY VAL GLN GLU LEU ASN SEQRES 1 B 255 MET PHE ASN SER ASP ASN LEU ARG LEU ASP GLY LYS CYS SEQRES 2 B 255 ALA ILE ILE THR GLY ALA GLY ALA GLY ILE GLY LYS GLU SEQRES 3 B 255 ILE ALA ILE THR PHE ALA THR ALA GLY ALA SER VAL VAL SEQRES 4 B 255 VAL SER ASP ILE ASN ALA ASP ALA ALA ASN HIS VAL VAL SEQRES 5 B 255 ASP GLU ILE GLN GLN LEU GLY GLY GLN ALA PHE ALA CYS SEQRES 6 B 255 ARG CYS ASP ILE THR SER GLU GLN GLU LEU SER ALA LEU SEQRES 7 B 255 ALA ASP PHE ALA ILE SER LYS LEU GLY LYS VAL ASP ILE SEQRES 8 B 255 LEU VAL ASN ASN ALA GLY GLY GLY GLY PRO LYS PRO PHE SEQRES 9 B 255 ASP MET PRO MET ALA ASP PHE ARG ARG ALA TYR GLU LEU SEQRES 10 B 255 ASN VAL PHE SER PHE PHE HIS LEU SER GLN LEU VAL ALA SEQRES 11 B 255 PRO GLU MET GLU LYS ASN GLY GLY GLY VAL ILE LEU THR SEQRES 12 B 255 ILE THR SER MET ALA ALA GLU ASN LYS ASN ILE ASN MET SEQRES 13 B 255 THR SER TYR ALA SER SER LYS ALA ALA ALA SER HIS LEU SEQRES 14 B 255 VAL ARG ASN MET ALA PHE ASP LEU GLY GLU LYS ASN ILE SEQRES 15 B 255 ARG VAL ASN GLY ILE ALA PRO GLY ALA ILE LEU THR ASP SEQRES 16 B 255 ALA LEU LYS SER VAL ILE THR PRO GLU ILE GLU GLN LYS SEQRES 17 B 255 MET LEU GLN HIS THR PRO ILE ARG ARG LEU GLY GLN PRO SEQRES 18 B 255 GLN ASP ILE ALA ASN ALA ALA LEU PHE LEU CYS SER PRO SEQRES 19 B 255 ALA ALA SER TRP VAL SER GLY GLN ILE LEU THR VAL SER SEQRES 20 B 255 GLY GLY GLY VAL GLN GLU LEU ASN

HET CHO A 301 28 HET NAI A 302 44 HET CHO B 301 28 HET NAI B 302 44

HETNAM CHO GLYCOCHENODEOXYCHOLIC ACID HETNAM NAI 1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE

HETSYN NAI NADH

FORMUL 3 CHO 2(C26 H43 N O5) FORMUL 4 NAI 2(C21 H29 N7 O14 P2) FORMUL 7 HOH *104(H2 O)

HELIX 1 BA GLY A 22 ALA A 32 1 11 HELIX 2 CA ALA A 45 GLN A 57 1 13 HELIX 3 DA GLU A 72 LEU A 86 1 15 HELIX 4 EA MET A 108 ASN A 136 1 29 HELIX 5 FA THR A 157 GLY A 178 1 22 HELIX 6 1A ASP A 195 VAL A 200 1TERMED FG1 IN THE ABOVE JRNL. 6 HELIX 7 2A PRO A 203 LEU A 210 1TERMED FG2 IN THE ABOVE JRNL. 8 HELIX 8 GA PRO A 221 CYS A 232 1 12 HELIX 9 BB ILE B 23 THR B 33 1 11 HELIX 10 CB ALA B 45 GLN B 57 1 13 HELIX 11 DB GLU B 72 LEU B 86 1 15 HELIX 12 EB MET B 108 LYS B 135 1 28 HELIX 13 FB THR B 157 GLY B 178 1 22 HELIX 14 1B ASP B 195 VAL B 200 1TERMED FG1 IN THE ABOVE JRNL. 6 HELIX 15 2B PRO B 203 GLN B 211 1TERMED FG2 IN THE ABOVE JRNL. 9 HELIX 16 GB PRO B 221 CYS B 232 1 12

SHEET 1 S1A 7 ALA A 62 ARG A 66 0 SHEET 2 S1A 7 SER A 37 ASP A 42 1 N VAL A 40 O PHE A 63 SHEET 3 S1A 7 CYS A 13 ILE A 16 1 N ILE A 16 O VAL A 39 SHEET 4 S1A 7 ILE A 91 ASN A 94 1 N VAL A 93 O ILE A 15 SHEET 5 S1A 7 GLY A 139 ILE A 144 1 N LEU A 142 O LEU A 92 SHEET 6 S1A 7 ILE A 182 PRO A 189 1 N ASN A 185 O ILE A 141 SHEET 7 S1A 7 ILE A 243 VAL A 246 1 N LEU A 244 O GLY A 186 SHEET 1 S1B 7 ALA B 62 ARG B 66 0 SHEET 2 S1B 7 SER B 37 ASP B 42 1 N VAL B 40 O PHE B 63 SHEET 3 S1B 7 CYS B 13 ILE B 16 1 N ILE B 16 O VAL B 39 SHEET 4 S1B 7 ILE B 91 ASN B 94 1 N VAL B 93 O ILE B 15 SHEET 5 S1B 7 GLY B 139 ILE B 144 1 N LEU B 142 O LEU B 92 SHEET 6 S1B 7 ILE B 182 PRO B 189 1 N ASN B 185 O ILE B 141 SHEET 7 S1B 7 ILE B 243 VAL B 246 1 N LEU B 244 O GLY B 186

SITE 1 AC1 11 GLY A 99 SER A 146 ALA A 148 ASN A 151 SITE 2 AC1 11 TYR A 159 ALA A 196 LEU A 197 VAL A 200 SITE 3 AC1 11 GLN A 252 NAI A 302 HOH A 411 SITE 1 AC2 22 GLY A 18 ALA A 21 GLY A 22 ILE A 23 SITE 2 AC2 22 ASP A 42 ILE A 43 CYS A 67 ASP A 68 SITE 3 AC2 22 ILE A 69 ASN A 95 GLY A 97 ILE A 144 SITE 4 AC2 22 THR A 145 TYR A 159 LYS A 163 PRO A 189 SITE 5 AC2 22 GLY A 190 ILE A 192 THR A 194 ALA A 196 SITE 6 AC2 22 CHO A 301 HOH A 431 SITE 1 AC3 13 GLY B 98 GLY B 99 SER B 146 ALA B 148 SITE 2 AC3 13 ASN B 151 TYR B 159 ALA B 196 LEU B 197 SITE 3 AC3 13 VAL B 200 MET B 209 GLN B 252 NAI B 302 SITE 4 AC3 13 HOH B 448 SITE 1 AC4 23 GLY B 18 ALA B 21 GLY B 22 ILE B 23 SITE 2 AC4 23 ASP B 42 ILE B 43 CYS B 67 ASP B 68 SITE 3 AC4 23 ILE B 69 ASN B 95 ILE B 144 THR B 145 SITE 4 AC4 23 TYR B 159 LYS B 163 PRO B 189 GLY B 190 SITE 5 AC4 23 ILE B 192 THR B 194 ALA B 196 CHO B 301 SITE 6 AC4 23 HOH B 405 HOH B 436 HOH B 450

CRYST1 81.590 81.590 214.650 90.00 90.00 90.00 P 41 21 2 16

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 0.012256 0.000000 0.000000 0.00000

SCALE2 0.000000 0.012256 0.000000 0.00000

SCALE3 0.000000 0.000000 0.004659 0.00000

MTRIX1 1 -0.154685 -0.844779 -0.512270 53.05720 1

MTRIX2 1 -0.850344 -0.150135 0.504355 53.06480 1

MTRIX3 1 -0.502979 0.513622 -0.695129 -0.34040 1