HEADER HYDROLASE 28-JUN-05 2A49 TITLE CRYSTAL STRUCTURE OF CLAVULANIC ACID BOUND TO E166A VARIANT OF SHV-1 TITLE 2 BETA-LACTAMASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: BETA-LACTAMASE SHV-1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PIT-2; COMPND 5 EC: 3.5.2.6; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: KLEBSIELLA PNEUMONIAE; SOURCE 3 ORGANISM_TAXID: 573; SOURCE 4 GENE: BLA, SHV1; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS BETA-LACTAMASE, BETA-LACTAM HYDROLASE, PENICILLINASE, DETERGENT KEYWDS 2 BINDING, INHIBITOR DESIGN, COVALENT INTERMEDIATE, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR P.S.PADAYATTI,M.S.HELFAND,M.A.TOTIR,M.P.CAREY,P.R.CAREY,R.A.BONOMO, AUTHOR 2 F.VAN DEN AKKER REVDAT 7 30-OCT-24 2A49 1 REMARK REVDAT 6 20-OCT-21 2A49 1 REMARK SEQADV LINK REVDAT 5 11-OCT-17 2A49 1 REMARK REVDAT 4 24-FEB-09 2A49 1 VERSN REVDAT 3 18-OCT-05 2A49 1 JRNL REVDAT 2 09-AUG-05 2A49 1 SEQADV REVDAT 1 02-AUG-05 2A49 0 JRNL AUTH P.S.PADAYATTI,M.S.HELFAND,M.A.TOTIR,M.P.CAREY,P.R.CAREY, JRNL AUTH 2 R.A.BONOMO,F.VAN DEN AKKER JRNL TITL HIGH RESOLUTION CRYSTAL STRUCTURES OF THE TRANS-ENAMINE JRNL TITL 2 INTERMEDIATES FORMED BY SULBACTAM AND CLAVULANIC ACID AND JRNL TITL 3 E166A SHV-1 {BETA}-LACTAMASE. JRNL REF J.BIOL.CHEM. V. 280 34900 2005 JRNL REFN ISSN 0021-9258 JRNL PMID 16055923 JRNL DOI 10.1074/JBC.M505333200 REMARK 2 REMARK 2 RESOLUTION. 1.43 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 1.43 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 14.44 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1129768.660 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 88.7 REMARK 3 NUMBER OF REFLECTIONS : 38822 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) : 0.194 REMARK 3 FREE R VALUE : 0.226 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 3894 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 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) : 1.43 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.52 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 52.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3363 REMARK 3 BIN R VALUE (WORKING SET) : 0.4870 REMARK 3 BIN FREE R VALUE : 0.5180 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.70 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 405 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.026 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2019 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 62 REMARK 3 SOLVENT ATOMS : 316 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 17.50 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.50 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.07000 REMARK 3 B22 (A**2) : -1.27000 REMARK 3 B33 (A**2) : -0.80000 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) : 0.16 REMARK 3 ESD FROM SIGMAA (A) : 0.14 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.17 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.011 REMARK 3 BOND ANGLES (DEGREES) : 1.600 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.090 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) : 2.120 ; 3.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.780 ; 5.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 4.510 ; 4.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.630 ; 8.000 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.34 REMARK 3 BSOL : 47.42 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 3 : NEW_CYMAL.PAR REMARK 3 PARAMETER FILE 4 : CLAV_DECARBOX.PAR REMARK 3 PARAMETER FILE 5 : HEPES.PAR REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : NEW_LIGANDS4.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2A49 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-JUL-05. REMARK 100 THE DEPOSITION ID IS D_1000033468. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-SEP-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 4.2.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.46 REMARK 200 MONOCHROMATOR : FOCUSED REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : NOIR-1 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SOFTWARE AT ALS 4.2.2. REMARK 200 DATA SCALING SOFTWARE : CCP4 (TRUNCATE) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 39126 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.430 REMARK 200 RESOLUTION RANGE LOW (A) : 14.440 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 37.84 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.98 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 24.81500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 42.35500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 27.60000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 42.35500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 24.81500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 27.60000 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 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 LEU A 293 REMARK 465 MET A 294 REMARK 465 ILE A 295 REMARK 465 LEU A 296 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 MET A 69 -145.02 57.01 REMARK 500 TYR A 105 86.69 66.48 REMARK 500 ALA A 166 -50.02 -27.00 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 ONLY PART OF THE MOLECULE EPE IS VISIBLE AND MODELED. REMARK 600 THE MOLECULE MA4 HAS ONE MOLECULE THAT IS PRESENT IN REMARK 600 ITS ENTIRITY, THE SECOND HAS A SMALLER PART THAT IS REMARK 600 VISIBLE.THE COMPOUND TEM IS COVALENTLY REACTED WITH REMARK 600 THE ACTIVE SITE SER70 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 MA4 A 401 REMARK 610 EPE A 600 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TEM A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MA4 A 400 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MA4 A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EPE A 600 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1RCJ RELATED DB: PDB REMARK 900 TAZOBACTAM BOUND E166A SHV-1 STRUCTURE REMARK 900 RELATED ID: 2A3U RELATED DB: PDB REMARK 900 SULBACTAM BOUND E166A SHV-1 STRUCTURE DBREF 2A49 A 26 290 UNP P14557 BLA1_ECOLI 22 286 SEQADV 2A49 ALA A 166 UNP P14557 GLU 162 ENGINEERED MUTATION SEQADV 2A49 LEU A 293 UNP P14557 CLONING ARTIFACT SEQADV 2A49 MET A 294 UNP P14557 CLONING ARTIFACT SEQADV 2A49 ILE A 295 UNP P14557 CLONING ARTIFACT SEQADV 2A49 LEU A 296 UNP P14557 CLONING ARTIFACT SEQRES 1 A 269 SER PRO GLN PRO LEU GLU GLN ILE LYS LEU SER GLU SER SEQRES 2 A 269 GLN LEU SER GLY ARG VAL GLY MET ILE GLU MET ASP LEU SEQRES 3 A 269 ALA SER GLY ARG THR LEU THR ALA TRP ARG ALA ASP GLU SEQRES 4 A 269 ARG PHE PRO MET MET SER THR PHE LYS VAL VAL LEU CYS SEQRES 5 A 269 GLY ALA VAL LEU ALA ARG VAL ASP ALA GLY ASP GLU GLN SEQRES 6 A 269 LEU GLU ARG LYS ILE HIS TYR ARG GLN GLN ASP LEU VAL SEQRES 7 A 269 ASP TYR SER PRO VAL SER GLU LYS HIS LEU ALA ASP GLY SEQRES 8 A 269 MET THR VAL GLY GLU LEU CYS ALA ALA ALA ILE THR MET SEQRES 9 A 269 SER ASP ASN SER ALA ALA ASN LEU LEU LEU ALA THR VAL SEQRES 10 A 269 GLY GLY PRO ALA GLY LEU THR ALA PHE LEU ARG GLN ILE SEQRES 11 A 269 GLY ASP ASN VAL THR ARG LEU ASP ARG TRP ALA THR GLU SEQRES 12 A 269 LEU ASN GLU ALA LEU PRO GLY ASP ALA ARG ASP THR THR SEQRES 13 A 269 THR PRO ALA SER MET ALA ALA THR LEU ARG LYS LEU LEU SEQRES 14 A 269 THR SER GLN ARG LEU SER ALA ARG SER GLN ARG GLN LEU SEQRES 15 A 269 LEU GLN TRP MET VAL ASP ASP ARG VAL ALA GLY PRO LEU SEQRES 16 A 269 ILE ARG SER VAL LEU PRO ALA GLY TRP PHE ILE ALA ASP SEQRES 17 A 269 LYS THR GLY ALA GLY GLU ARG GLY ALA ARG GLY ILE VAL SEQRES 18 A 269 ALA LEU LEU GLY PRO ASN ASN LYS ALA GLU ARG ILE VAL SEQRES 19 A 269 VAL ILE TYR LEU ARG ASP THR PRO ALA SER MET ALA GLU SEQRES 20 A 269 ARG ASN GLN GLN ILE ALA GLY ILE GLY ALA ALA LEU ILE SEQRES 21 A 269 GLU HIS TRP GLN ARG LEU MET ILE LEU HET TEM A 501 11 HET MA4 A 400 35 HET MA4 A 401 10 HET EPE A 600 6 HETNAM TEM N-(2-HYDROXY-4-OXO-BUTYL)-N-(3-OXO-TRANSPROPENYL)AMINE HETNAM MA4 CYCLOHEXYL-HEXYL-BETA-D-MALTOSIDE HETNAM EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID HETSYN EPE HEPES FORMUL 2 TEM C7 H11 N O3 FORMUL 3 MA4 2(C24 H44 O11) FORMUL 5 EPE C8 H18 N2 O4 S FORMUL 6 HOH *316(H2 O) HELIX 1 1 GLN A 28 SER A 41 1 14 HELIX 2 2 THR A 71 ALA A 86 1 16 HELIX 3 3 ARG A 98 LEU A 102 5 5 HELIX 4 4 VAL A 108 LEU A 113 5 6 HELIX 5 5 VAL A 119 SER A 130 1 12 HELIX 6 6 ASP A 131 VAL A 142 1 12 HELIX 7 7 GLY A 143 ILE A 155 1 13 HELIX 8 8 THR A 167 GLU A 171 5 5 HELIX 9 9 THR A 182 SER A 196 1 15 HELIX 10 10 SER A 200 ASP A 213 1 14 HELIX 11 11 ALA A 217 LEU A 225 1 9 HELIX 12 12 SER A 271 HIS A 289 1 19 SHEET 1 A 5 THR A 56 TRP A 60 0 SHEET 2 A 5 ARG A 43 ASP A 50 -1 N GLU A 48 O LEU A 57 SHEET 3 A 5 ARG A 259 ARG A 266 -1 O ILE A 260 N MET A 49 SHEET 4 A 5 ARG A 244 GLY A 251 -1 N ARG A 244 O LEU A 265 SHEET 5 A 5 PHE A 230 ALA A 237 -1 N PHE A 230 O GLY A 251 SHEET 1 B 2 PHE A 66 PRO A 67 0 SHEET 2 B 2 THR A 180 THR A 181 -1 O THR A 181 N PHE A 66 SHEET 1 C 2 LYS A 94 ILE A 95 0 SHEET 2 C 2 MET A 117 THR A 118 -1 O MET A 117 N ILE A 95 SSBOND 1 CYS A 77 CYS A 123 1555 1555 2.05 LINK OG SER A 70 C7 TEM A 501 1555 1555 1.37 SITE 1 AC1 8 MET A 69 SER A 70 ASN A 170 GLY A 236 SITE 2 AC1 8 ALA A 237 EPE A 600 HOH A 896 HOH A 906 SITE 1 AC2 17 ARG A 93 HIS A 96 ARG A 98 ILE A 221 SITE 2 AC2 17 VAL A 224 PRO A 226 ALA A 248 VAL A 261 SITE 3 AC2 17 ILE A 263 ALA A 280 ALA A 284 GLU A 288 SITE 4 AC2 17 HOH A 614 HOH A 633 HOH A 726 HOH A 752 SITE 5 AC2 17 HOH A 860 SITE 1 AC3 2 ARG A 244 ILE A 279 SITE 1 AC4 8 SER A 70 SER A 130 VAL A 216 LYS A 234 SITE 2 AC4 8 THR A 235 GLY A 236 ARG A 244 TEM A 501 CRYST1 49.630 55.200 84.710 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 0.020149 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018116 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011805 0.00000