HEADER HYDROLASE 15-MAY-06 2H10 TITLE CRYSTAL STRUCTURE OF THE M69V E166A DOUBLE MUTANT OF SHV-1 B-LACTAMASE TITLE 2 COMPLEXED TO TAZOBACTAM 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 STR. K-12 SUBSTR. DH10B; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 316385; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: DH10B; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PBC SK(-) KEYWDS ANTIBIOTIC RESISTANCE, B-LACTAMASE INHIBITOR, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR F.VAN DEN AKKER,P.S.PADAYATTI REVDAT 5 30-AUG-23 2H10 1 REMARK REVDAT 4 20-OCT-21 2H10 1 REMARK SEQADV LINK REVDAT 3 18-OCT-17 2H10 1 REMARK REVDAT 2 24-FEB-09 2H10 1 VERSN REVDAT 1 30-JAN-07 2H10 0 JRNL AUTH M.A.TOTIR,P.S.PADAYATTI,M.S.HELFAND,M.P.CAREY,R.A.BONOMO, JRNL AUTH 2 P.R.CAREY,F.VAN DEN AKKER JRNL TITL EFFECT OF THE INHIBITOR-RESISTANT M69V SUBSTITUTION ON THE JRNL TITL 2 STRUCTURES AND POPULATIONS OF TRANS-ENAMINE BETA-LACTAMASE JRNL TITL 3 INTERMEDIATES. JRNL REF BIOCHEMISTRY V. 45 11895 2006 JRNL REFN ISSN 0006-2960 JRNL PMID 17002290 JRNL DOI 10.1021/BI060990M REMARK 2 REMARK 2 RESOLUTION. 1.75 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) : 1.75 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.91 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1358824.630 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 23773 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) : 0.159 REMARK 3 FREE R VALUE : 0.190 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 2349 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) : 1.75 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.86 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3534 REMARK 3 BIN R VALUE (WORKING SET) : 0.2510 REMARK 3 BIN FREE R VALUE : 0.2730 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.50 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 373 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.014 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 : 64 REMARK 3 SOLVENT ATOMS : 307 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 17.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.50 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.69000 REMARK 3 B22 (A**2) : -3.27000 REMARK 3 B33 (A**2) : 0.58000 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) : 0.10 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) : 0.12 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.600 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.030 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) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.40 REMARK 3 BSOL : 74.97 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 : PRODR_TAZO4.PAR REMARK 3 PARAMETER FILE 4 : NEW_CYMAL.PAR REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : NEW_LIGANDS.TOP REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2H10 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-MAY-06. REMARK 100 THE DEPOSITION ID IS D_1000037794. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-SEP-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 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 : NULL 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 : D*TREK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 23825 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.750 REMARK 200 RESOLUTION RANGE LOW (A) : 19.910 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05900 REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.75 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.81 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.29900 REMARK 200 FOR SHELL : 3.000 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: PDB ENTRY 1RCJ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.05 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.99 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 6000, 0.1M HEPES, 0.56MM CYMAL REMARK 280 -6. CRYSTAL SOAKED FOR 10 MINUTES IN 50MM TAZOBACTAM PRIOR TO REMARK 280 FREEZING AND DATA COLLECTION, PH 7.0, VAPOR DIFFUSION, SITTING REMARK 280 DROP, TEMPERATURE 298K 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 24.83500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 41.76500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 27.59000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 41.76500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 24.83500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 27.59000 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 300 REMARK: PROTEIN IS A MONOMER 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 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 HOH A 739 O HOH A 796 2.19 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 VAL A 69 -143.88 43.10 REMARK 500 TYR A 105 88.12 73.33 REMARK 500 REMARK 500 REMARK: NULL 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 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TBE 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2A49 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CLAVULANIC ACID BOUND TO E166A VARIANT OF SHV- REMARK 900 1 B-LACTAMASE REMARK 900 RELATED ID: 2A3U RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF SULBACTAM BOUND TO E166A VARIANT OF SHV-1 B- REMARK 900 LACTAMASE REMARK 900 RELATED ID: 1RCJ RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF E166A MUTANT OF SHV-1 B-LACTAMASE WITH THE REMARK 900 TRANS-ENAMINE INTERMEDIATE OF TAZOBACTAM REMARK 900 RELATED ID: 2H0Y RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE M69V E166A DOUBLE MUTANT OF SHV-1 B- REMARK 900 LACTAMASE COMPLEXED TO SULBACTAM DBREF 2H10 A 26 290 UNP P0AD64 BLA1_KLEPN 22 286 SEQADV 2H10 VAL A 69 UNP P0AD64 MET 65 ENGINEERED MUTATION SEQADV 2H10 ALA A 166 UNP P0AD64 GLU 162 ENGINEERED MUTATION SEQRES 1 A 265 SER PRO GLN PRO LEU GLU GLN ILE LYS LEU SER GLU SER SEQRES 2 A 265 GLN LEU SER GLY ARG VAL GLY MET ILE GLU MET ASP LEU SEQRES 3 A 265 ALA SER GLY ARG THR LEU THR ALA TRP ARG ALA ASP GLU SEQRES 4 A 265 ARG PHE PRO MET VAL SER THR PHE LYS VAL VAL LEU CYS SEQRES 5 A 265 GLY ALA VAL LEU ALA ARG VAL ASP ALA GLY ASP GLU GLN SEQRES 6 A 265 LEU GLU ARG LYS ILE HIS TYR ARG GLN GLN ASP LEU VAL SEQRES 7 A 265 ASP TYR SER PRO VAL SER GLU LYS HIS LEU ALA ASP GLY SEQRES 8 A 265 MET THR VAL GLY GLU LEU CYS ALA ALA ALA ILE THR MET SEQRES 9 A 265 SER ASP ASN SER ALA ALA ASN LEU LEU LEU ALA THR VAL SEQRES 10 A 265 GLY GLY PRO ALA GLY LEU THR ALA PHE LEU ARG GLN ILE SEQRES 11 A 265 GLY ASP ASN VAL THR ARG LEU ASP ARG TRP ALA THR GLU SEQRES 12 A 265 LEU ASN GLU ALA LEU PRO GLY ASP ALA ARG ASP THR THR SEQRES 13 A 265 THR PRO ALA SER MET ALA ALA THR LEU ARG LYS LEU LEU SEQRES 14 A 265 THR SER GLN ARG LEU SER ALA ARG SER GLN ARG GLN LEU SEQRES 15 A 265 LEU GLN TRP MET VAL ASP ASP ARG VAL ALA GLY PRO LEU SEQRES 16 A 265 ILE ARG SER VAL LEU PRO ALA GLY TRP PHE ILE ALA ASP SEQRES 17 A 265 LYS THR GLY ALA GLY GLU ARG GLY ALA ARG GLY ILE VAL SEQRES 18 A 265 ALA LEU LEU GLY PRO ASN ASN LYS ALA GLU ARG ILE VAL SEQRES 19 A 265 VAL ILE TYR LEU ARG ASP THR PRO ALA SER MET ALA GLU SEQRES 20 A 265 ARG ASN GLN GLN ILE ALA GLY ILE GLY ALA ALA LEU ILE SEQRES 21 A 265 GLU HIS TRP GLN ARG HET TBE A 501 20 HET MA4 A 400 35 HET MA4 A 401 9 HETNAM TBE TAZOBACTAM INTERMEDIATE HETNAM MA4 CYCLOHEXYL-HEXYL-BETA-D-MALTOSIDE FORMUL 2 TBE C10 H14 N4 O5 S FORMUL 3 MA4 2(C24 H44 O11) FORMUL 5 HOH *307(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 HIS A 112 5 5 HELIX 5 5 VAL A 119 MET A 129 1 11 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 182 SER A 196 1 15 HELIX 9 9 SER A 200 ASP A 213 1 14 HELIX 10 10 ALA A 217 LEU A 225 1 9 HELIX 11 11 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 MET A 46 O TRP A 60 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 LEU A 250 O ARG A 259 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 2.04 LINK OG SER A 70 C7 TBE A 501 1555 1555 1.37 SITE 1 AC1 12 VAL A 69 SER A 70 TYR A 105 SER A 130 SITE 2 AC1 12 ASN A 132 ASN A 170 GLY A 236 ALA A 237 SITE 3 AC1 12 HOH A 544 HOH A 569 HOH A 728 HOH A 781 SITE 1 AC2 18 ARG A 93 HIS A 96 ARG A 98 VAL A 224 SITE 2 AC2 18 PRO A 226 ILE A 231 ALA A 248 VAL A 261 SITE 3 AC2 18 ILE A 263 ALA A 280 ALA A 284 GLU A 288 SITE 4 AC2 18 HOH A 509 HOH A 541 HOH A 610 HOH A 649 SITE 5 AC2 18 HOH A 652 HOH A 787 SITE 1 AC3 2 ARG A 244 ILE A 279 CRYST1 49.670 55.180 83.530 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 0.020133 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018123 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011972 0.00000