HEADER CARBOXYL METHYLESTERASE 09-MAR-95 1CHD TITLE CHEB METHYLESTERASE DOMAIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHEB METHYLESTERASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.1.1.61; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM; SOURCE 3 ORGANISM_TAXID: 99287; SOURCE 4 STRAIN: LT2; SOURCE 5 GENE: CHEB; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: DH5ALPHA; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: BACTERIAL; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PCP1 (PUC12 VECTOR); SOURCE 11 EXPRESSION_SYSTEM_GENE: CHEB KEYWDS CHEMOTAXIS PROTEIN, SERINE HYDROLASE, CARBOXYL METHYLESTERASE EXPDTA X-RAY DIFFRACTION AUTHOR A.H.WEST,E.MARTINEZ-HACKERT,A.M.STOCK REVDAT 4 07-FEB-24 1CHD 1 REMARK REVDAT 3 13-JUL-11 1CHD 1 VERSN REVDAT 2 24-FEB-09 1CHD 1 VERSN REVDAT 1 29-JAN-96 1CHD 0 JRNL AUTH A.H.WEST,E.MARTINEZ-HACKERT,A.M.STOCK JRNL TITL CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF THE CHEMOTAXIS JRNL TITL 2 RECEPTOR METHYLESTERASE, CHEB. JRNL REF J.MOL.BIOL. V. 250 276 1995 JRNL REFN ISSN 0022-2836 JRNL PMID 7608974 JRNL DOI 10.1006/JMBI.1995.0376 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.H.WEST,S.DJORDJEVIC,E.MARTINEZ-HACKERT,A.M.STOCK REMARK 1 TITL PURIFICATION, CRYSTALLIZATION, AND PRELIMINARY X-RAY REMARK 1 TITL 2 DIFFRACTION ANALYSES OF THE BACTERIAL CHEMOTAXIS RECEPTOR REMARK 1 TITL 3 MODIFYING ENZYMES REMARK 1 REF TO BE PUBLISHED REMARK 1 REFN REMARK 1 REFERENCE 2 REMARK 1 AUTH J.K.KRUEGER,J.STOCK,C.E.SCHUTT REMARK 1 TITL EVIDENCE THAT THE METHYLESTERASE OF BACTERIAL CHEMOTAXIS MAY REMARK 1 TITL 2 BE A SERINE HYDROLASE REMARK 1 REF BIOCHIM.BIOPHYS.ACTA V.1119 322 1992 REMARK 1 REFN ISSN 0006-3002 REMARK 1 REFERENCE 3 REMARK 1 AUTH J.B.STOCK,G.S.LUKAT,A.M.STOCK REMARK 1 TITL BACTERIAL CHEMOTAXIS AND THE MOLECULAR LOGIC OF REMARK 1 TITL 2 INTRACELLULAR SIGNAL TRANSDUCTION NETWORKS REMARK 1 REF ANNU.REV.BIOPHYS.BIOPHYS. V. 20 109 1991 REMARK 1 REF 2 CHEM. REMARK 1 REFN ISSN 0883-9182 REMARK 1 REFERENCE 4 REMARK 1 AUTH S.A.SIMMS,M.G.KEANE,J.STOCK REMARK 1 TITL MULTIPLE FORMS OF THE CHEB METHYLESTERASE IN BACTERIAL REMARK 1 TITL 2 CHEMOSENSING REMARK 1 REF J.BIOL.CHEM. V. 260 10161 1985 REMARK 1 REFN ISSN 0021-9258 REMARK 2 REMARK 2 RESOLUTION. 1.75 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.75 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 16951 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 + TEST SET) : 0.182 REMARK 3 R VALUE (WORKING SET) : NULL REMARK 3 FREE R VALUE : 0.230 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1469 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 123 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 13.19 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) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 0.401 ; 1.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 0.682 ; 1.500 REMARK 3 SIDE-CHAIN BOND (A**2) : 0.704 ; 1.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 1.152 ; 1.500 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 UNUSUAL DIHEDRAL ANGLES (PHI= -140.17 AND PSI= -120.83) ARE REMARK 3 OBSERVED FOR SER 164 WHICH MAY ACCOUNT FOR THE CLOSE REMARK 3 CONTACT AS AN ACTIVE SITE RESIDUE AND IS PROPOSED TO BE REMARK 3 INVOLVED IN THE CATALYSIS OF METHYL ESTER HYDROLYSIS. REMARK 3 PHI/PSI ANGLES THAT LIE OUTSIDE THE EXPECTED RANGE HAVE REMARK 3 BEEN OBSERVED FOR MANY OTHER ACTIVE SITE SERINE REMARK 3 NUCLEOPHILES IN HYDROLYTIC ENZYMES OF THIS CLASS. REMARK 4 REMARK 4 1CHD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000172324. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-AUG-94 REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL 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 : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : XUONG-HAMLIN MULTIWIRE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19729 REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.6 REMARK 200 DATA REDUNDANCY : 2.400 REMARK 200 R MERGE (I) : 0.04500 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: NULL 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 (%): 47.65 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.35 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 58.00667 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 29.00333 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 29.00333 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 58.00667 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 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 400 REMARK 400 COMPOUND REMARK 400 TURN REMARK 400 TURN TYPES CLASSIFIED ACCORDING TO RICHARDSON, J.S (1981) REMARK 400 ADVAN. PROT. CHEM., 34, 167-340. REMARK 450 REMARK 450 SOURCE REMARK 450 MOLECULE_NAME: CHEB METHYLESTERASE DOMAIN. DETAILS OF REMARK 450 CONSTRUCTION OF EXPRESSION PLASMID AND PROTEIN REMARK 450 PURIFICATION ARE DESCRIBED IN WEST, A.H. ET AL. (1995) REMARK 450 PROTEINS: STR. FUNC. GENET., IN PRESS. 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 LEU A 147 REMARK 465 LYS A 148 REMARK 465 ALA A 149 REMARK 465 GLY A 150 REMARK 465 PRO A 151 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 ARG A 197 NE - CZ - NH1 ANGL. DEV. = 4.5 DEGREES REMARK 500 ARG A 197 NE - CZ - NH2 ANGL. DEV. = -4.4 DEGREES REMARK 500 ARG A 273 NE - CZ - NH1 ANGL. DEV. = 4.5 DEGREES REMARK 500 ARG A 273 NE - CZ - NH2 ANGL. DEV. = -6.5 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 SER A 164 -120.83 -140.17 REMARK 500 THR A 281 137.94 -39.38 REMARK 500 REMARK 500 REMARK: NULL REMARK 650 REMARK 650 HELIX REMARK 650 HELIX REMARK 650 DETERMINATION METHOD: REMARK 650 H BONDS, DIHEDRAL ANGLES, KABSCH AND SANDER ALGORITHM, REMARK 650 AND VISUAL INSPECTION REMARK 650 HELIX_ID: L1,PART OF CONNECTING LOOP BETWEEN BETA STRAND REMARK 650 2 AND HELIX B. REMARK 650 HELIX_ID: L2,PART OF CONNECTING LOOP BETWEEN BETA STRAND REMARK 650 6 AND HELIX C. REMARK 650 HELIX_ID: L3,PART OF CONNECTING LOOP BETWEEN BETA STRAND REMARK 650 9 AND HELIX F. REMARK 650 HELIX_ID: L4,PART OF CONNECTING LOOP BETWEEN BETA STRAND REMARK 650 8 AND HELIX E. REMARK 700 REMARK 700 SHEET REMARK 700 SHEET REMARK 700 SHEET_ID: SH1, H BONDS, DIHEDRAL ANGLES, KABSCH AND SANDER REMARK 700 ALGORITHM, AND VISUAL INSPECTION. CENTRAL PARALLEL BETA REMARK 700 SHEET. REMARK 700 SHEET_ID: SH2, ANTIPARALLEL BETA MOTIF THAT FLANKS ONE REMARK 700 SIDE OF THE CENTRAL SEVEN-STRANDED BETA SHEET. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: ACT REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: ACTIVE SITE REMARK 800 REMARK 800 SITE_IDENTIFIER: OXY REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: PROPOSED OXYANION HOLE DBREF 1CHD A 147 349 UNP P04042 CHEB_SALTY 147 349 SEQRES 1 A 203 LEU LYS ALA GLY PRO LEU LEU SER SER GLU LYS LEU ILE SEQRES 2 A 203 ALA ILE GLY ALA SER THR GLY GLY THR GLU ALA ILE ARG SEQRES 3 A 203 HIS VAL LEU GLN PRO LEU PRO LEU SER SER PRO ALA VAL SEQRES 4 A 203 ILE ILE THR GLN HIS MET PRO PRO GLY PHE THR ARG SER SEQRES 5 A 203 PHE ALA GLU ARG LEU ASN LYS LEU CYS GLN ILE SER VAL SEQRES 6 A 203 LYS GLU ALA GLU ASP GLY GLU ARG VAL LEU PRO GLY HIS SEQRES 7 A 203 ALA TYR ILE ALA PRO GLY ASP LYS HIS MET GLU LEU ALA SEQRES 8 A 203 ARG SER GLY ALA ASN TYR GLN ILE LYS ILE HIS ASP GLY SEQRES 9 A 203 PRO PRO VAL ASN ARG HIS ARG PRO SER VAL ASP VAL LEU SEQRES 10 A 203 PHE HIS SER VAL ALA LYS HIS ALA GLY ARG ASN ALA VAL SEQRES 11 A 203 GLY VAL ILE LEU THR GLY MET GLY ASN ASP GLY ALA ALA SEQRES 12 A 203 GLY MET LEU ALA MET TYR GLN ALA GLY ALA TRP THR ILE SEQRES 13 A 203 ALA GLN ASN GLU ALA SER CYS VAL VAL PHE GLY MET PRO SEQRES 14 A 203 ARG GLU ALA ILE ASN MET GLY GLY VAL SER GLU VAL VAL SEQRES 15 A 203 ASP LEU SER GLN VAL SER GLN GLN MET LEU ALA LYS ILE SEQRES 16 A 203 SER ALA GLY GLN ALA ILE ARG ILE FORMUL 2 HOH *123(H2 O) HELIX 1 A GLY A 167 GLN A 176 1 10 HELIX 2 B PHE A 195 LEU A 206 1 12 HELIX 3 C VAL A 260 HIS A 270 1 11 HELIX 4 D ALA A 288 ALA A 297 1 10 HELIX 5 E MET A 314 ASN A 320 1 7 HELIX 6 F LEU A 330 ILE A 341 5 12 HELIX 7 L1 MET A 191 GLY A 194 10 4 HELIX 8 L2 GLY A 250 VAL A 253 10 4 HELIX 9 L3 ASP A 329 GLN A 332 5 4 HELIX 10 L4 GLU A 306 CYS A 309 1 4 SHEET 1 SH1 7 GLU A 326 ASP A 329 0 SHEET 2 SH1 7 TRP A 300 ASN A 305 1 N ALA A 303 O GLU A 326 SHEET 3 SH1 7 ALA A 275 LEU A 280 1 N ILE A 279 O ILE A 302 SHEET 4 SH1 7 LEU A 158 ALA A 163 1 N GLY A 162 O VAL A 278 SHEET 5 SH1 7 ALA A 184 HIS A 190 1 N THR A 188 O ILE A 161 SHEET 6 SH1 7 HIS A 224 ALA A 228 1 N ALA A 228 O ILE A 187 SHEET 7 SH1 7 SER A 210 ALA A 214 1 O LYS A 212 N ILE A 227 SHEET 1 SH2 2 HIS A 233 SER A 239 0 SHEET 2 SH2 2 ASN A 242 HIS A 248 -1 O GLN A 244 N ALA A 237 CISPEP 1 ARG A 257 PRO A 258 0 2.56 SITE 1 ACT 3 SER A 164 HIS A 190 ASP A 286 SITE 1 OXY 2 MET A 283 THR A 165 CRYST1 63.380 63.380 87.010 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 0.015778 0.009109 0.000000 0.00000 SCALE2 0.000000 0.018219 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011493 0.00000