HEADER LYASE 06-FEB-20 6Y04 TITLE CRYSTAL STRUCTURE OF BETA-CARBONIC ANHYDRASE ISOFORM I (TVACA1) FROM TITLE 2 THE TRICHOMONAS VAGINALIS PROTOZOAN. COMPND MOL_ID: 1; COMPND 2 MOLECULE: CARBONIC ANHYDRASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: CARBONATE DEHYDRATASE; COMPND 5 EC: 4.2.1.1; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: TRICHOMONAS VAGINALIS; SOURCE 3 ORGANISM_TAXID: 5722; SOURCE 4 GENE: TVAG_005270; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS DRUGGABLE ENZYME, LYASE EXPDTA X-RAY DIFFRACTION AUTHOR A.DI FIORE,G.DE SIMONE REVDAT 2 24-JAN-24 6Y04 1 LINK REVDAT 1 08-JUL-20 6Y04 0 JRNL AUTH L.J.URBANSKI,A.DI FIORE,L.AZIZI,V.P.HYTONEN,M.KUUSLAHTI, JRNL AUTH 2 M.BUONANNO,S.M.MONTI,A.ANGELI,R.ZOLFAGHARI EMAMEH, JRNL AUTH 3 C.T.SUPURAN,G.DE SIMONE,S.PARKKILA JRNL TITL BIOCHEMICAL AND STRUCTURAL CHARACTERISATION OF A PROTOZOAN JRNL TITL 2 BETA-CARBONIC ANHYDRASE FROMTRICHOMONAS VAGINALIS. JRNL REF J ENZYME INHIB MED CHEM V. 35 1292 2020 JRNL REFN ESSN 1475-6374 JRNL PMID 32515610 JRNL DOI 10.1080/14756366.2020.1774572 REMARK 2 REMARK 2 RESOLUTION. 2.48 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0238 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.48 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 41.90 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 94.5 REMARK 3 NUMBER OF REFLECTIONS : 10698 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 + TEST SET) : 0.203 REMARK 3 R VALUE (WORKING SET) : 0.198 REMARK 3 FREE R VALUE : 0.257 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 8.100 REMARK 3 FREE R VALUE TEST SET COUNT : 944 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.48 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.54 REMARK 3 REFLECTION IN BIN (WORKING SET) : 687 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 84.67 REMARK 3 BIN R VALUE (WORKING SET) : 0.2660 REMARK 3 BIN FREE R VALUE SET COUNT : 64 REMARK 3 BIN FREE R VALUE : 0.2720 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2790 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 64 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.31 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.37000 REMARK 3 B22 (A**2) : 2.96000 REMARK 3 B33 (A**2) : -1.60000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.345 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.223 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 10.216 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.931 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.887 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2843 ; 0.004 ; 0.012 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3850 ; 1.010 ; 1.630 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 362 ; 6.229 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 122 ;39.756 ;24.426 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 520 ;15.884 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 10 ;23.147 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 402 ; 0.085 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2070 ; 0.004 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NCS TYPE: LOCAL REMARK 3 NUMBER OF DIFFERENT NCS PAIRS : 1 REMARK 3 GROUP CHAIN1 RANGE CHAIN2 RANGE COUNT RMS WEIGHT REMARK 3 1 A 1 182 B 1 182 5554 0.050 0.050 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: U VALUES : REFINED INDIVIDUALLY REMARK 4 REMARK 4 6Y04 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 06-FEB-20. REMARK 100 THE DEPOSITION ID IS D_1292106636. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-JUL-19 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL 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 MICROMAX-007 HF REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54178 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RIGAKU SATURN 944 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12403 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.480 REMARK 200 RESOLUTION RANGE LOW (A) : 41.900 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 13.50 REMARK 200 R MERGE (I) : 0.15200 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 7.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.48 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.52 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.9 REMARK 200 DATA REDUNDANCY IN SHELL : 4.50 REMARK 200 R MERGE FOR SHELL (I) : 0.57200 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: AMORE REMARK 200 STARTING MODEL: 1G5C REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.08 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 30% (W/V) POLYETHYLENE GLYCOL 4000, REMARK 280 0.2 M SODIUM ACETATE, 0.1 M TRIS-HCL, PH 8.5, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 293K 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 23.65000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 45.35000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 38.65000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 45.35000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 38.65000 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 8040 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 14700 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -134.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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: 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 PHE A 45 -59.10 -152.48 REMARK 500 ALA A 63 108.90 -54.82 REMARK 500 HIS A 103 30.55 -98.80 REMARK 500 PHE B 45 -60.12 -152.03 REMARK 500 ALA B 63 108.96 -55.61 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 301 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 37 SG REMARK 620 2 HIS A 96 NE2 104.5 REMARK 620 3 CYS A 99 SG 126.8 100.8 REMARK 620 4 HOH A 428 O 102.3 117.8 106.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN B 301 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 37 SG REMARK 620 2 HIS B 96 NE2 105.8 REMARK 620 3 CYS B 99 SG 124.8 101.8 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue ZN A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue ZN B 301 DBREF 6Y04 A 1 182 UNP A2ENQ8 A2ENQ8_TRIVA 1 182 DBREF 6Y04 B 1 182 UNP A2ENQ8 A2ENQ8_TRIVA 1 182 SEQRES 1 A 182 MET SER GLN LEU GLU LEU ILE THR SER ALA ASN GLN ALA SEQRES 2 A 182 PHE LEU GLU ALA ASN PRO GLU LEU THR LYS LEU ASN LYS SEQRES 3 A 182 ALA PRO GLN ARG HIS ILE ALA ILE VAL THR CYS MET ASP SEQRES 4 A 182 THR ARG LEU VAL ASN PHE ALA GLU ASP ALA ILE GLY VAL SEQRES 5 A 182 LYS ARG GLY GLU ALA THR VAL ILE LYS ALA ALA GLY ASN SEQRES 6 A 182 GLY ILE TRP THR THR GLY LEU SER ASP ILE VAL VAL SER SEQRES 7 A 182 LEU LEU VAL SER ILE TYR GLU LEU GLY VAL GLN GLU ILE SEQRES 8 A 182 PHE ILE MET GLY HIS GLU CYS CYS GLY MET THR HIS ALA SEQRES 9 A 182 SER THR ASP SER LEU GLY ALA GLN MET LEU LYS SER GLY SEQRES 10 A 182 ILE LYS PRO GLU ASP ILE GLU LYS PHE LYS SER ASP LEU SEQRES 11 A 182 SER LYS TRP VAL ASP ASP PHE LYS ASP PRO ILE ASP ASN SEQRES 12 A 182 ILE LYS ASN SER VAL ARG CYS VAL ARG GLU ASN PRO LEU SEQRES 13 A 182 ILE PRO LYS ASN ILE PRO ILE HIS GLY LEU LEU ILE HIS SEQRES 14 A 182 PRO ASP THR GLY LYS VAL THR THR ILE ILE ASN GLY TYR SEQRES 1 B 182 MET SER GLN LEU GLU LEU ILE THR SER ALA ASN GLN ALA SEQRES 2 B 182 PHE LEU GLU ALA ASN PRO GLU LEU THR LYS LEU ASN LYS SEQRES 3 B 182 ALA PRO GLN ARG HIS ILE ALA ILE VAL THR CYS MET ASP SEQRES 4 B 182 THR ARG LEU VAL ASN PHE ALA GLU ASP ALA ILE GLY VAL SEQRES 5 B 182 LYS ARG GLY GLU ALA THR VAL ILE LYS ALA ALA GLY ASN SEQRES 6 B 182 GLY ILE TRP THR THR GLY LEU SER ASP ILE VAL VAL SER SEQRES 7 B 182 LEU LEU VAL SER ILE TYR GLU LEU GLY VAL GLN GLU ILE SEQRES 8 B 182 PHE ILE MET GLY HIS GLU CYS CYS GLY MET THR HIS ALA SEQRES 9 B 182 SER THR ASP SER LEU GLY ALA GLN MET LEU LYS SER GLY SEQRES 10 B 182 ILE LYS PRO GLU ASP ILE GLU LYS PHE LYS SER ASP LEU SEQRES 11 B 182 SER LYS TRP VAL ASP ASP PHE LYS ASP PRO ILE ASP ASN SEQRES 12 B 182 ILE LYS ASN SER VAL ARG CYS VAL ARG GLU ASN PRO LEU SEQRES 13 B 182 ILE PRO LYS ASN ILE PRO ILE HIS GLY LEU LEU ILE HIS SEQRES 14 B 182 PRO ASP THR GLY LYS VAL THR THR ILE ILE ASN GLY TYR HET ZN A 301 1 HET ZN B 301 1 HETNAM ZN ZINC ION FORMUL 3 ZN 2(ZN 2+) FORMUL 5 HOH *64(H2 O) HELIX 1 AA1 SER A 2 ASN A 18 1 17 HELIX 2 AA2 ASP A 39 VAL A 43 5 5 HELIX 3 AA3 PHE A 45 ILE A 50 1 6 HELIX 4 AA4 SER A 73 GLU A 85 1 13 HELIX 5 AA5 SER A 105 SER A 116 1 12 HELIX 6 AA6 LYS A 119 ASP A 135 1 17 HELIX 7 AA7 ASP A 139 GLU A 153 1 15 HELIX 8 AA8 SER B 2 ASN B 18 1 17 HELIX 9 AA9 ASP B 39 VAL B 43 5 5 HELIX 10 AB1 PHE B 45 ILE B 50 1 6 HELIX 11 AB2 SER B 73 GLU B 85 1 13 HELIX 12 AB3 SER B 105 SER B 116 1 12 HELIX 13 AB4 LYS B 119 ASP B 135 1 17 HELIX 14 AB5 ASP B 139 GLU B 153 1 15 SHEET 1 AA1 5 ALA A 57 LYS A 61 0 SHEET 2 AA1 5 ILE A 32 THR A 36 1 N ILE A 34 O ILE A 60 SHEET 3 AA1 5 GLU A 90 HIS A 96 1 O MET A 94 N VAL A 35 SHEET 4 AA1 5 ILE A 163 ILE A 168 1 O HIS A 164 N ILE A 91 SHEET 5 AA1 5 VAL A 175 ILE A 179 -1 O ILE A 178 N GLY A 165 SHEET 1 AA2 5 ALA B 57 LYS B 61 0 SHEET 2 AA2 5 ILE B 32 THR B 36 1 N ILE B 34 O ILE B 60 SHEET 3 AA2 5 GLU B 90 HIS B 96 1 O MET B 94 N VAL B 35 SHEET 4 AA2 5 ILE B 163 ILE B 168 1 O HIS B 164 N ILE B 91 SHEET 5 AA2 5 VAL B 175 ILE B 179 -1 O ILE B 178 N GLY B 165 LINK SG CYS A 37 ZN ZN A 301 1555 1555 2.34 LINK NE2 HIS A 96 ZN ZN A 301 1555 1555 2.04 LINK SG CYS A 99 ZN ZN A 301 1555 1555 2.34 LINK ZN ZN A 301 O HOH A 428 1555 1555 2.00 LINK SG CYS B 37 ZN ZN B 301 1555 1555 2.30 LINK NE2 HIS B 96 ZN ZN B 301 1555 1555 2.03 LINK SG CYS B 99 ZN ZN B 301 1555 1555 2.34 SITE 1 AC1 4 CYS A 37 HIS A 96 CYS A 99 HOH A 428 SITE 1 AC2 4 CYS B 37 HIS B 96 CYS B 99 HOH B 424 CRYST1 47.300 77.300 90.700 90.00 90.00 90.00 P 21 21 21 8 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 0.021142 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012937 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011025 0.00000