HEADER ANTIMICROBIAL PROTEIN 07-FEB-22 7R3Q TITLE CRYSTAL STRUCTURE OF CTX-M-15 G238C/A240 INSERT MUTANT APOENZYME COMPND MOL_ID: 1; COMPND 2 MOLECULE: BETA-LACTAMASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.5.2.6; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: KLEBSIELLA PNEUMONIAE; SOURCE 3 ORGANISM_TAXID: 573; SOURCE 4 GENE: BLACTX-M-15; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS BETA-LACTAMASE, INHIBITOR, ANTIBIOTIC RESISTANCE, CROSS-LINK, KEYWDS 2 ANTIMICROBIAL PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR C.L.TOOKE,P.HINCHLIFFE,J.SPENCER REVDAT 5 23-OCT-24 7R3Q 1 REMARK REVDAT 4 31-JAN-24 7R3Q 1 REMARK REVDAT 3 06-JUL-22 7R3Q 1 JRNL REVDAT 2 01-JUN-22 7R3Q 1 JRNL REVDAT 1 25-MAY-22 7R3Q 0 JRNL AUTH P.HINCHLIFFE,C.L.TOOKE,C.R.BETHEL,B.WANG,C.ARTHUR, JRNL AUTH 2 K.J.HEESOM,S.SHAPIRO,D.M.SCHLATZER,K.M.PAPP-WALLACE, JRNL AUTH 3 R.A.BONOMO,J.SPENCER JRNL TITL PENICILLANIC ACID SULFONES INACTIVATE THE EXTENDED-SPECTRUM JRNL TITL 2 BETA-LACTAMASE CTX-M-15 THROUGH FORMATION OF A SERINE-LYSINE JRNL TITL 3 CROSS-LINK: AN ALTERNATIVE MECHANISM OF BETA-LACTAMASE JRNL TITL 4 INHIBITION. JRNL REF MBIO V. 13 79321 2022 JRNL REFN ESSN 2150-7511 JRNL PMID 35612361 JRNL DOI 10.1128/MBIO.01793-21 REMARK 2 REMARK 2 RESOLUTION. 1.46 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.18.2_3874 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.46 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 58.95 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 42833 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.160 REMARK 3 R VALUE (WORKING SET) : 0.157 REMARK 3 FREE R VALUE : 0.212 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.920 REMARK 3 FREE R VALUE TEST SET COUNT : 2107 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 58.9500 - 3.5900 1.00 2956 119 0.1443 0.1625 REMARK 3 2 3.5900 - 2.8500 1.00 2772 147 0.1379 0.1534 REMARK 3 3 2.8500 - 2.4900 1.00 2761 131 0.1434 0.2046 REMARK 3 4 2.4900 - 2.2600 1.00 2728 142 0.1253 0.2015 REMARK 3 5 2.2600 - 2.1000 1.00 2704 154 0.1323 0.2006 REMARK 3 6 2.1000 - 1.9800 1.00 2686 151 0.1389 0.2122 REMARK 3 7 1.9800 - 1.8800 1.00 2688 156 0.1500 0.2110 REMARK 3 8 1.8800 - 1.8000 1.00 2671 170 0.1584 0.2491 REMARK 3 9 1.8000 - 1.7300 1.00 2672 140 0.1711 0.2594 REMARK 3 10 1.7300 - 1.6700 1.00 2698 129 0.1999 0.2890 REMARK 3 11 1.6700 - 1.6100 1.00 2688 127 0.2139 0.3131 REMARK 3 12 1.6100 - 1.5700 1.00 2690 121 0.2230 0.3138 REMARK 3 13 1.5700 - 1.5300 1.00 2689 126 0.2385 0.2688 REMARK 3 14 1.5300 - 1.4900 1.00 2684 120 0.2527 0.3523 REMARK 3 15 1.4900 - 1.4600 1.00 2639 174 0.2734 0.3703 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.184 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 22.229 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 13.66 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.06 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.009 2092 REMARK 3 ANGLE : 0.999 2856 REMARK 3 CHIRALITY : 0.076 331 REMARK 3 PLANARITY : 0.007 375 REMARK 3 DIHEDRAL : 17.808 785 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 7R3Q COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 07-FEB-22. REMARK 100 THE DEPOSITION ID IS D_1292120873. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-JAN-22 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : DIAMOND REMARK 200 BEAMLINE : I03 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.73379 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER2 XE 16M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : AUTOPROC REMARK 200 DATA SCALING SOFTWARE : AUTOPROC REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 42845 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.456 REMARK 200 RESOLUTION RANGE LOW (A) : 58.950 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 13.00 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 6.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.46 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.48 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 13.50 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 0.700 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: 4HBT REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.52 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M TRIS PH 8, 2 M AMMONIUM SULFATE, REMARK 280 VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 292.15K 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 22.23750 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 58.95000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 22.79150 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 58.95000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 22.23750 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 22.79150 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 TOTAL BURIED SURFACE AREA: 430 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11450 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -23.0 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 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 GLY A 24 REMARK 465 PRO A 25 REMARK 465 GLN A 26 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 LEU A 289 O 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 HD21 ASN A 104 O HOH A 403 1.40 REMARK 500 HH12 ARG A 204 O HOH A 405 1.50 REMARK 500 HD21 ASN A 106 O HOH A 402 1.58 REMARK 500 HH TYR A 263 O HOH A 406 1.58 REMARK 500 O HOH A 614 O HOH A 730 1.97 REMARK 500 O HOH A 645 O HOH A 679 2.01 REMARK 500 O HOH A 564 O HOH A 617 2.02 REMARK 500 OE1 GLU A 110 O HOH A 401 2.05 REMARK 500 O HOH A 628 O HOH A 682 2.05 REMARK 500 ND2 ASN A 106 O HOH A 402 2.08 REMARK 500 ND2 ASN A 104 O HOH A 403 2.10 REMARK 500 O HOH A 436 O HOH A 705 2.12 REMARK 500 O HOH A 404 O HOH A 595 2.13 REMARK 500 O HOH A 495 O HOH A 713 2.16 REMARK 500 O HOH A 672 O HOH A 735 2.16 REMARK 500 O HOH A 671 O HOH A 766 2.17 REMARK 500 O HOH A 466 O HOH A 726 2.17 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 479 O HOH A 615 3545 2.06 REMARK 500 O HOH A 550 O HOH A 655 3555 2.07 REMARK 500 O HOH A 689 O HOH A 692 4445 2.13 REMARK 500 O HOH A 652 O HOH A 750 3555 2.14 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 CYS A 69 -144.88 52.74 REMARK 500 VAL A 103 -136.02 -125.48 REMARK 500 SER A 220 -124.36 -104.42 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 778 DISTANCE = 6.06 ANGSTROMS REMARK 525 HOH A 779 DISTANCE = 6.60 ANGSTROMS REMARK 525 HOH A 780 DISTANCE = 6.92 ANGSTROMS DBREF 7R3Q A 26 289 UNP G3G192 G3G192_KLEPN 49 311 SEQADV 7R3Q GLY A 24 UNP G3G192 EXPRESSION TAG SEQADV 7R3Q PRO A 25 UNP G3G192 EXPRESSION TAG SEQADV 7R3Q CYS A 238 UNP G3G192 INSERTION SEQADV 7R3Q ALA A 240 UNP G3G192 GLY 262 ENGINEERED MUTATION SEQRES 1 A 266 GLY PRO GLN THR ALA ASP VAL GLN GLN LYS LEU ALA GLU SEQRES 2 A 266 LEU GLU ARG GLN SER GLY GLY ARG LEU GLY VAL ALA LEU SEQRES 3 A 266 ILE ASN THR ALA ASP ASN SER GLN ILE LEU TYR ARG ALA SEQRES 4 A 266 ASP GLU ARG PHE ALA MET CYS SER THR SER LYS VAL MET SEQRES 5 A 266 ALA ALA ALA ALA VAL LEU LYS LYS SER GLU SER GLU PRO SEQRES 6 A 266 ASN LEU LEU ASN GLN ARG VAL GLU ILE LYS LYS SER ASP SEQRES 7 A 266 LEU VAL ASN TYR ASN PRO ILE ALA GLU LYS HIS VAL ASN SEQRES 8 A 266 GLY THR MET SER LEU ALA GLU LEU SER ALA ALA ALA LEU SEQRES 9 A 266 GLN TYR SER ASP ASN VAL ALA MET ASN LYS LEU ILE ALA SEQRES 10 A 266 HIS VAL GLY GLY PRO ALA SER VAL THR ALA PHE ALA ARG SEQRES 11 A 266 GLN LEU GLY ASP GLU THR PHE ARG LEU ASP ARG THR GLU SEQRES 12 A 266 PRO THR LEU ASN THR ALA ILE PRO GLY ASP PRO ARG ASP SEQRES 13 A 266 THR THR SER PRO ARG ALA MET ALA GLN THR LEU ARG ASN SEQRES 14 A 266 LEU THR LEU GLY LYS ALA LEU GLY ASP SER GLN ARG ALA SEQRES 15 A 266 GLN LEU VAL THR TRP MET LYS GLY ASN THR THR GLY ALA SEQRES 16 A 266 ALA SER ILE GLN ALA GLY LEU PRO ALA SER TRP VAL VAL SEQRES 17 A 266 GLY ASP LYS THR GLY SER CYS GLY ALA TYR GLY THR THR SEQRES 18 A 266 ASN ASP ILE ALA VAL ILE TRP PRO LYS ASP ARG ALA PRO SEQRES 19 A 266 LEU ILE LEU VAL THR TYR PHE THR GLN PRO GLN PRO LYS SEQRES 20 A 266 ALA GLU SER ARG ARG ASP VAL LEU ALA SER ALA ALA LYS SEQRES 21 A 266 ILE VAL THR ASP GLY LEU HET SO4 A 301 5 HET SO4 A 302 5 HET SO4 A 303 5 HET SO4 A 304 5 HET CL A 305 1 HETNAM SO4 SULFATE ION HETNAM CL CHLORIDE ION FORMUL 2 SO4 4(O4 S 2-) FORMUL 6 CL CL 1- FORMUL 7 HOH *380(H2 O) HELIX 1 AA1 THR A 27 GLY A 42 1 16 HELIX 2 AA2 CYS A 69 THR A 71 5 3 HELIX 3 AA3 SER A 72 GLU A 85 1 14 HELIX 4 AA4 ASN A 89 ASN A 92 5 4 HELIX 5 AA5 LYS A 98 LEU A 102 5 5 HELIX 6 AA6 ILE A 108 VAL A 113 5 6 HELIX 7 AA7 LEU A 119 SER A 130 1 12 HELIX 8 AA8 ASP A 131 GLY A 143 1 13 HELIX 9 AA9 GLY A 144 LEU A 155 1 12 HELIX 10 AB1 PRO A 167 THR A 171 5 5 HELIX 11 AB2 SER A 182 LEU A 195 1 14 HELIX 12 AB3 GLY A 200 GLY A 213 1 14 HELIX 13 AB4 SER A 220 LEU A 225 5 6 HELIX 14 AB5 ARG A 274 ASP A 287 1 14 SHEET 1 AA1 5 SER A 56 TYR A 60 0 SHEET 2 AA1 5 ARG A 44 ASN A 51 -1 N VAL A 47 O TYR A 60 SHEET 3 AA1 5 LEU A 258 THR A 265 -1 O TYR A 263 N GLY A 46 SHEET 4 AA1 5 THR A 244 TRP A 251 -1 N ALA A 248 O LEU A 260 SHEET 5 AA1 5 VAL A 230 SER A 237 -1 N VAL A 230 O TRP A 251 SHEET 1 AA2 2 PHE A 66 ALA A 67 0 SHEET 2 AA2 2 THR A 180 THR A 181 -1 O THR A 181 N PHE A 66 SHEET 1 AA3 2 ARG A 94 GLU A 96 0 SHEET 2 AA3 2 THR A 116 SER A 118 -1 O MET A 117 N VAL A 95 SSBOND 1 CYS A 69 CYS A 238 1555 1555 2.01 CISPEP 1 GLU A 166 PRO A 167 0 7.05 CRYST1 44.475 45.583 117.900 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 0.022485 0.000000 0.000000 0.00000 SCALE2 0.000000 0.021938 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008482 0.00000