HEADER ISOMERASE 09-OCT-06 2INX TITLE CRYSTAL STRUCTURE OF KETOSTEROID ISOMERASE D40N FROM PSEUDOMONAS TITLE 2 PUTIDA (PKSI) WITH BOUND 2,6-DIFLUOROPHENOL COMPND MOL_ID: 1; COMPND 2 MOLECULE: STEROID DELTA-ISOMERASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: DELTA-5-3-KETOSTEROID ISOMERASE; COMPND 5 EC: 5.3.3.1; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PSEUDOMONAS PUTIDA; SOURCE 3 ORGANISM_TAXID: 303; SOURCE 4 GENE: KSI; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID KEYWDS KSI, ENZYME, ACTIVE SITE, CHARGE DISTRIBUTION, HYDROGEN BOND, KEYWDS 2 ISOMERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.M.MARTINEZ CAAVEIRO,B.PYBUS,D.RINGE,G.A.PETSKO,P.SIGALA,D.KRAUT, AUTHOR 2 D.HERSCHLAG REVDAT 5 30-AUG-23 2INX 1 REMARK REVDAT 4 20-OCT-21 2INX 1 REMARK SEQADV REVDAT 3 24-FEB-09 2INX 1 VERSN REVDAT 2 14-OCT-08 2INX 1 JRNL REVDAT 1 23-OCT-07 2INX 0 JRNL AUTH P.A.SIGALA,D.A.KRAUT,J.M.CAAVEIRO,B.PYBUS,E.A.RUBEN,D.RINGE, JRNL AUTH 2 G.A.PETSKO,D.HERSCHLAG JRNL TITL TESTING GEOMETRICAL DISCRIMINATION WITHIN AN ENZYME ACTIVE JRNL TITL 2 SITE: CONSTRAINED HYDROGEN BONDING IN THE KETOSTEROID JRNL TITL 3 ISOMERASE OXYANION HOLE. JRNL REF J.AM.CHEM.SOC. V. 130 13696 2008 JRNL REFN ISSN 0002-7863 JRNL PMID 18808119 JRNL DOI 10.1021/JA803928M REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH D.KRAUT,P.SIGALA,B.PYBUS,C.W.LIU,D.RINGE,G.A.PETSKO, REMARK 1 AUTH 2 D.HERSCHLAG REMARK 1 TITL TESTING ELECTROSTATIC COMPLEMENTARITY IN ENZYME CATALYSIS: REMARK 1 TITL 2 HYDROGEN BONDING IN THE KETOSTEROID ISOMERASE OXYANION HOLE REMARK 1 REF PLOS BIOL. V. 4 501 2006 REMARK 1 REFN ISSN 1544-9173 REMARK 1 PMID 16602823 REMARK 1 DOI 10.1371/JOURNAL.PBIO.0040099 REMARK 2 REMARK 2 RESOLUTION. 1.50 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) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 47.40 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 93.7 REMARK 3 NUMBER OF REFLECTIONS : 18650 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) : 0.190 REMARK 3 R VALUE (WORKING SET) : 0.185 REMARK 3 FREE R VALUE : 0.234 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.800 REMARK 3 FREE R VALUE TEST SET COUNT : 1830 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) : 1.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.54 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1150 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 85.93 REMARK 3 BIN R VALUE (WORKING SET) : 0.1840 REMARK 3 BIN FREE R VALUE SET COUNT : 108 REMARK 3 BIN FREE R VALUE : 0.2680 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 960 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 9 REMARK 3 SOLVENT ATOMS : 72 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 26.93 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.88000 REMARK 3 B22 (A**2) : -2.58000 REMARK 3 B33 (A**2) : -0.30000 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): 0.117 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.095 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.062 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.648 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.955 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.928 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1058 ; 0.021 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1445 ; 1.906 ; 1.945 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 137 ; 5.874 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 58 ;31.808 ;23.448 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 175 ;13.768 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 12 ;18.333 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 152 ; 0.130 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 849 ; 0.010 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 457 ; 0.219 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 723 ; 0.317 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 75 ; 0.190 ; 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): 67 ; 0.244 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 11 ; 0.174 ; 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): 661 ; 2.266 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1036 ; 3.285 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 456 ; 3.957 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 402 ; 5.500 ; 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): 1117 ; 2.575 ; 3.000 REMARK 3 SPHERICITY; FREE ATOMS (A**2): 72 ;11.133 ; 3.000 REMARK 3 SPHERICITY; BONDED ATOMS (A**2): 1029 ; 6.452 ; 3.000 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 : BABINET MODEL WITH 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 2INX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-OCT-06. REMARK 100 THE DEPOSITION ID IS D_1000039798. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 18-NOV-04 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 14-BM-C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.900 REMARK 200 MONOCHROMATOR : GE 111 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19274 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 47.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.8 REMARK 200 DATA REDUNDANCY : 9.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07900 REMARK 200 FOR THE DATA SET : 16.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.55 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.7 REMARK 200 DATA REDUNDANCY IN SHELL : 8.90 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.37400 REMARK 200 FOR SHELL : 4.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 2B32 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.64 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.07 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE 1.4 M, 2-PROPANOL REMARK 280 6.5% PROTEIN CONCENTRATION 25 MG/ML, PH 7.0, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 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 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 36.21200 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 36.21200 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 17.55700 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 47.44350 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 17.55700 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 47.44350 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 36.21200 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 17.55700 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 47.44350 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 36.21200 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 17.55700 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 47.44350 REMARK 290 SMTRY3 8 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: DIMERIC 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 350 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 94.88700 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 72.42400 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 135 LIES ON A SPECIAL POSITION. 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 GLY A 62 REMARK 465 GLY A 63 REMARK 465 GLY A 64 REMARK 465 ARG A 128 REMARK 465 GLU A 129 REMARK 465 PRO A 130 REMARK 465 GLN A 131 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 O ASP A 21 O HOH A 199 2.13 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 ASN A 93 58.92 82.27 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FFP A 132 DBREF 2INX A 1 131 UNP P07445 SDIS_PSEPU 1 131 SEQADV 2INX ASN A 40 UNP P07445 ASP 40 ENGINEERED MUTATION SEQRES 1 A 131 MET ASN LEU PRO THR ALA GLN GLU VAL GLN GLY LEU MET SEQRES 2 A 131 ALA ARG TYR ILE GLU LEU VAL ASP VAL GLY ASP ILE GLU SEQRES 3 A 131 ALA ILE VAL GLN MET TYR ALA ASP ASP ALA THR VAL GLU SEQRES 4 A 131 ASN PRO PHE GLY GLN PRO PRO ILE HIS GLY ARG GLU GLN SEQRES 5 A 131 ILE ALA ALA PHE TYR ARG GLN GLY LEU GLY GLY GLY LYS SEQRES 6 A 131 VAL ARG ALA CYS LEU THR GLY PRO VAL ARG ALA SER HIS SEQRES 7 A 131 ASN GLY CYS GLY ALA MET PRO PHE ARG VAL GLU MET VAL SEQRES 8 A 131 TRP ASN GLY GLN PRO CYS ALA LEU ASP VAL ILE ASP VAL SEQRES 9 A 131 MET ARG PHE ASP GLU HIS GLY ARG ILE GLN THR MET GLN SEQRES 10 A 131 ALA TYR TRP SER GLU VAL ASN LEU SER VAL ARG GLU PRO SEQRES 11 A 131 GLN HET FFP A 132 9 HETNAM FFP 2,6-DIFLUOROPHENOL FORMUL 2 FFP C6 H4 F2 O FORMUL 3 HOH *72(H2 O) HELIX 1 1 THR A 5 GLY A 23 1 19 HELIX 2 2 ASP A 24 MET A 31 1 8 HELIX 3 3 GLY A 49 LEU A 61 1 13 HELIX 4 4 SER A 121 VAL A 123 5 3 SHEET 1 A 6 ILE A 47 HIS A 48 0 SHEET 2 A 6 TYR A 32 GLU A 39 -1 N VAL A 38 O ILE A 47 SHEET 3 A 6 ILE A 113 TYR A 119 1 O ILE A 113 N ALA A 33 SHEET 4 A 6 PRO A 96 PHE A 107 -1 N ILE A 102 O TYR A 119 SHEET 5 A 6 CYS A 81 VAL A 91 -1 N GLY A 82 O MET A 105 SHEET 6 A 6 ARG A 75 ALA A 76 -1 N ARG A 75 O ALA A 83 SHEET 1 B 4 ARG A 67 LEU A 70 0 SHEET 2 B 4 CYS A 81 VAL A 91 -1 O GLU A 89 N ARG A 67 SHEET 3 B 4 PRO A 96 PHE A 107 -1 O MET A 105 N GLY A 82 SHEET 4 B 4 LEU A 125 SER A 126 -1 O SER A 126 N ALA A 98 CISPEP 1 ASN A 40 PRO A 41 0 -0.19 SITE 1 AC1 8 TYR A 16 VAL A 20 ASN A 40 PHE A 86 SITE 2 AC1 8 VAL A 101 ASP A 103 MET A 116 ALA A 118 CRYST1 35.114 94.887 72.424 90.00 90.00 90.00 C 2 2 21 8 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 0.028479 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010539 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013808 0.00000