HEADER OXIDOREDUCTASE 28-JUL-00 1GC9 TITLE THE CRYSTAL STRUCTURE OF THERMUS THERMOPHILUS 3-ISOPROPYLMALATE TITLE 2 DEHYDROGENASE MUTATED AT 172TH FROM ALA TO GLY COMPND MOL_ID: 1; COMPND 2 MOLECULE: 3-ISOPROPYLMALATE DEHYDROGENASE; COMPND 3 CHAIN: A; COMPND 4 EC: 1.1.1.85; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMUS THERMOPHILUS; SOURCE 3 ORGANISM_TAXID: 300852; SOURCE 4 STRAIN: HB8; SOURCE 5 GENE: LEUB; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: JA221 KEYWDS IPMDH, IMDH, THERMOSTABILITY, DEHYDROGENATION, DECARBOXYLATION, KEYWDS 2 OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR C.QU,S.AKANUMA,N.TANAKA,H.MORIYAMA,T.OSHIMA REVDAT 8 27-DEC-23 1GC9 1 REMARK REVDAT 7 10-NOV-21 1GC9 1 SEQADV REVDAT 6 04-OCT-17 1GC9 1 REMARK REVDAT 5 13-JUL-11 1GC9 1 VERSN REVDAT 4 24-FEB-09 1GC9 1 VERSN REVDAT 3 28-JAN-03 1GC9 1 REMARK REVDAT 2 01-FEB-01 1GC9 1 JRNL REVDAT 1 27-SEP-00 1GC9 0 JRNL AUTH C.QU,S.AKANUMA,N.TANAKA,H.MORIYAMA,T.OSHIMA JRNL TITL DESIGN, X-RAY CRYSTALLOGRAPHY, MOLECULAR MODELLING AND JRNL TITL 2 THERMAL STABILITY STUDIES OF MUTANT ENZYMES AT SITE 172 OF JRNL TITL 3 3-ISOPROPYLMALATE DEHYDROGENASE FROM THERMUS THERMOPHILUS. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 57 225 2001 JRNL REFN ISSN 0907-4449 JRNL PMID 11173468 JRNL DOI 10.1107/S0907444900017388 REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 2474507.120 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 88.5 REMARK 3 NUMBER OF REFLECTIONS : 16105 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) : 0.173 REMARK 3 FREE R VALUE : 0.221 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1600 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 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) : 2.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.44 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 41.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1474 REMARK 3 BIN R VALUE (WORKING SET) : 0.2530 REMARK 3 BIN FREE R VALUE : 0.2970 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 174 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.023 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2594 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 55 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 31.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 28.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 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) : 0.24 REMARK 3 ESD FROM SIGMAA (A) : 0.34 REMARK 3 LOW RESOLUTION CUTOFF (A) : 6.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.30 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.38 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.340 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) : 2.540 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 3.760 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 22.270; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 19.210; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.PARAM REMARK 3 TOPOLOGY FILE 4 : PROTEIN.LINK REMARK 3 TOPOLOGY FILE 5 : WATER_REP.PARAM REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1GC9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 31-JUL-00. REMARK 100 THE DEPOSITION ID IS D_1000005031. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-MAY-97 REMARK 200 TEMPERATURE (KELVIN) : 293.0 REMARK 200 PH : 7.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU300 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : R-AXIS REMARK 200 DATA SCALING SOFTWARE : R-AXIS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16105 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.5 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.06400 REMARK 200 R SYM (I) : NULL REMARK 200 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 67.86 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.70 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONUIM SULFATE, POTASSIUM PHOSPHATE, REMARK 280 PH 7.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 105.37333 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 52.68667 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 52.68667 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 105.37333 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: THE BIOLOGICAL ASSEMBLY IS A DIMER CONSTRUCTED BY CHAIN A REMARK 300 AND A SYMETRY PARTNER GENERATED BY THE TWO-FOLD AXIS. 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 4200 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 25130 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -29.0 KCAL/MOL 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 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 158.06000 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 GLY A 283 N - CA - C ANGL. DEV. = -15.3 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 ASP A 127 77.83 -159.80 REMARK 500 ARG A 176 -118.04 -120.36 REMARK 500 VAL A 188 -36.02 -140.22 REMARK 500 SER A 226 58.68 -149.40 REMARK 500 ASP A 231 -86.47 -120.93 REMARK 500 ASN A 237 -70.42 -62.54 REMARK 500 SER A 253 116.20 -166.82 REMARK 500 ALA A 276 58.60 38.65 REMARK 500 ILE A 284 -15.46 40.09 REMARK 500 LEU A 344 46.08 -97.88 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1IPD RELATED DB: PDB REMARK 900 1IPD CONTAINS THE WILD TYPE ENZYME PRODUCED BY THERMUS THERMOPHILUS. REMARK 900 RELATED ID: 1OSJ RELATED DB: PDB REMARK 900 1OSJ CONTAINS A172L. REMARK 900 RELATED ID: 1GC8 RELATED DB: PDB REMARK 900 1GC8 CONTAINS A172F. REMARK 900 RELATED ID: 1DPZ RELATED DB: PDB REMARK 900 1DPZ CONTAINS THE C-TERMINAL MUTANT OF A172L. REMARK 900 RELATED ID: 1DR0 RELATED DB: PDB REMARK 900 1DR0 CONTAINS THE C-TERMINAL MUTANT OF A172L. REMARK 900 RELATED ID: 1DR8 RELATED DB: PDB REMARK 900 1DR8 CONTAINS THE C-TERMINAL MUTANT OF A172L. DBREF 1GC9 A 1 345 UNP Q5SIY4 Q5SIY4_THET8 1 345 SEQADV 1GC9 ARG A 85 UNP Q5SIY4 SER 85 SEE REMARK 999 SEQADV 1GC9 GLY A 172 UNP Q5SIY4 ALA 172 ENGINEERED MUTATION SEQRES 1 A 345 MET LYS VAL ALA VAL LEU PRO GLY ASP GLY ILE GLY PRO SEQRES 2 A 345 GLU VAL THR GLU ALA ALA LEU LYS VAL LEU ARG ALA LEU SEQRES 3 A 345 ASP GLU ALA GLU GLY LEU GLY LEU ALA TYR GLU VAL PHE SEQRES 4 A 345 PRO PHE GLY GLY ALA ALA ILE ASP ALA PHE GLY GLU PRO SEQRES 5 A 345 PHE PRO GLU PRO THR ARG LYS GLY VAL GLU GLU ALA GLU SEQRES 6 A 345 ALA VAL LEU LEU GLY SER VAL GLY GLY PRO LYS TRP ASP SEQRES 7 A 345 GLY LEU PRO ARG LYS ILE ARG PRO GLU THR GLY LEU LEU SEQRES 8 A 345 SER LEU ARG LYS SER GLN ASP LEU PHE ALA ASN LEU ARG SEQRES 9 A 345 PRO ALA LYS VAL PHE PRO GLY LEU GLU ARG LEU SER PRO SEQRES 10 A 345 LEU LYS GLU GLU ILE ALA ARG GLY VAL ASP VAL LEU ILE SEQRES 11 A 345 VAL ARG GLU LEU THR GLY GLY ILE TYR PHE GLY GLU PRO SEQRES 12 A 345 ARG GLY MET SER GLU ALA GLU ALA TRP ASN THR GLU ARG SEQRES 13 A 345 TYR SER LYS PRO GLU VAL GLU ARG VAL ALA ARG VAL ALA SEQRES 14 A 345 PHE GLU GLY ALA ARG LYS ARG ARG LYS HIS VAL VAL SER SEQRES 15 A 345 VAL ASP LYS ALA ASN VAL LEU GLU VAL GLY GLU PHE TRP SEQRES 16 A 345 ARG LYS THR VAL GLU GLU VAL GLY ARG GLY TYR PRO ASP SEQRES 17 A 345 VAL ALA LEU GLU HIS GLN TYR VAL ASP ALA MET ALA MET SEQRES 18 A 345 HIS LEU VAL ARG SER PRO ALA ARG PHE ASP VAL VAL VAL SEQRES 19 A 345 THR GLY ASN ILE PHE GLY ASP ILE LEU SER ASP LEU ALA SEQRES 20 A 345 SER VAL LEU PRO GLY SER LEU GLY LEU LEU PRO SER ALA SEQRES 21 A 345 SER LEU GLY ARG GLY THR PRO VAL PHE GLU PRO VAL HIS SEQRES 22 A 345 GLY SER ALA PRO ASP ILE ALA GLY LYS GLY ILE ALA ASN SEQRES 23 A 345 PRO THR ALA ALA ILE LEU SER ALA ALA MET MET LEU GLU SEQRES 24 A 345 HIS ALA PHE GLY LEU VAL GLU LEU ALA ARG LYS VAL GLU SEQRES 25 A 345 ASP ALA VAL ALA LYS ALA LEU LEU GLU THR PRO PRO PRO SEQRES 26 A 345 ASP LEU GLY GLY SER ALA GLY THR GLU ALA PHE THR ALA SEQRES 27 A 345 THR VAL LEU ARG HIS LEU ALA FORMUL 2 HOH *55(H2 O) HELIX 1 1 ILE A 11 GLY A 31 1 21 HELIX 2 2 GLY A 42 GLY A 50 1 9 HELIX 3 3 PRO A 54 ALA A 64 1 11 HELIX 4 4 GLY A 74 GLY A 79 1 6 HELIX 5 5 PRO A 81 ILE A 84 5 4 HELIX 6 6 ARG A 85 GLN A 97 1 13 HELIX 7 7 LEU A 112 SER A 116 5 5 HELIX 8 8 LYS A 119 ARG A 124 1 6 HELIX 9 9 SER A 158 LYS A 175 1 18 HELIX 10 10 LEU A 189 ARG A 204 1 16 HELIX 11 11 VAL A 216 SER A 226 1 11 HELIX 12 12 PRO A 227 PHE A 230 5 4 HELIX 13 13 GLY A 236 LEU A 250 1 15 HELIX 14 14 SER A 253 LEU A 256 5 4 HELIX 15 15 ALA A 276 ALA A 280 5 5 HELIX 16 16 PRO A 287 PHE A 302 1 16 HELIX 17 17 LEU A 304 THR A 322 1 19 HELIX 18 18 PRO A 324 GLY A 328 5 5 HELIX 19 19 GLY A 332 HIS A 343 1 12 SHEET 1 A10 ALA A 35 VAL A 38 0 SHEET 2 A10 LYS A 2 GLY A 8 1 N VAL A 3 O ALA A 35 SHEET 3 A10 ALA A 66 SER A 71 1 O ALA A 66 N ALA A 4 SHEET 4 A10 VAL A 268 PRO A 271 1 O PHE A 269 N LEU A 69 SHEET 5 A10 PRO A 258 GLY A 263 -1 O SER A 259 N GLU A 270 SHEET 6 A10 LEU A 99 LYS A 107 -1 N PHE A 100 O LEU A 262 SHEET 7 A10 ASP A 127 GLU A 133 -1 O VAL A 128 N ALA A 106 SHEET 8 A10 VAL A 232 THR A 235 1 O VAL A 233 N VAL A 131 SHEET 9 A10 HIS A 179 ASP A 184 1 O HIS A 179 N VAL A 232 SHEET 10 A10 ALA A 210 TYR A 215 1 O ALA A 210 N VAL A 180 SHEET 1 B 2 GLY A 145 MET A 146 0 SHEET 2 B 2 ALA A 151 TRP A 152 -1 O TRP A 152 N GLY A 145 CISPEP 1 GLU A 142 PRO A 143 0 0.12 CRYST1 78.610 78.610 158.060 90.00 90.00 120.00 P 32 2 1 6 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 0.012721 0.007344 0.000000 0.00000 SCALE2 0.000000 0.014689 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006327 0.00000