PDB Short entry for 1I6P HEADER LYASE 02-MAR-01 1I6P TITLE CRYSTAL STRUCTURE OF E. COLI BETA CARBONIC ANHYDRASE (ECCA) COMPND MOL_ID: 1; COMPND 2 MOLECULE: CARBONIC ANHYDRASE; COMPND 3 CHAIN: A; COMPND 4 EC: 4.2.1.1; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: YADF; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET3A KEYWDS CARBONIC ANHYDRASE, METALLOENZYME, ZINC COORDINATION, PH-DEPENDENT KEYWDS 2 ACTIVITY, MAD PHASING, LYASE EXPDTA X-RAY DIFFRACTION AUTHOR J.D.CRONK,J.A.ENDRIZZI,M.R.CRONK,J.W.O'NEILL,K.Y.J.ZHANG REVDAT 5 09-AUG-23 1I6P 1 REMARK LINK REVDAT 4 13-JUL-11 1I6P 1 VERSN REVDAT 3 24-FEB-09 1I6P 1 VERSN REVDAT 2 01-APR-03 1I6P 1 JRNL REVDAT 1 09-MAY-01 1I6P 0 JRNL AUTH J.D.CRONK,J.A.ENDRIZZI,M.R.CRONK,J.W.O'NEILL,K.Y.ZHANG JRNL TITL CRYSTAL STRUCTURE OF E. COLI BETA-CARBONIC ANHYDRASE, AN JRNL TITL 2 ENZYME WITH AN UNUSUAL PH-DEPENDENT ACTIVITY. JRNL REF PROTEIN SCI. V. 10 911 2001 JRNL REFN ISSN 0961-8368 JRNL PMID 11316870 JRNL DOI 10.1110/PS.46301 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.D.CRONK,J.W.O'NEILL,M.R.CRONK,J.A.ENDRIZZI,K.Y.J.ZHANG REMARK 1 TITL CLONING, CRYSTALLIZATION AND PRELIMINARY CHARACTERIZATION OF REMARK 1 TITL 2 A BETA CARBONIC ANHYDRASE FROM ESCHERICHIA COLI REMARK 1 REF ACTA CRYSTALLOGR.,SECT.D V. 52 1176 2000 REMARK 1 REFN ISSN 0907-4449 REMARK 1 DOI 10.1107/S0907444900008519 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 42.21 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 334555.690 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.7 REMARK 3 NUMBER OF REFLECTIONS : 13653 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) : 0.176 REMARK 3 FREE R VALUE : 0.202 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1379 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 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) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.13 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 92.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1955 REMARK 3 BIN R VALUE (WORKING SET) : 0.1910 REMARK 3 BIN FREE R VALUE : 0.2150 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.20 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 223 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 : 1715 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 62 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 15.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 28.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.34000 REMARK 3 B22 (A**2) : -0.34000 REMARK 3 B33 (A**2) : 0.69000 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) : 0.19 REMARK 3 ESD FROM SIGMAA (A) : 0.11 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) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.15 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.004 REMARK 3 BOND ANGLES (DEGREES) : 1.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 20.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.620 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 : 0.34 REMARK 3 BSOL : 44.43 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 : ION.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1I6P COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 99 REMARK 99 DENSITY FOR THE FOLLOWING ATOMS WITHIN THE MAIN CHAIN REMARK 99 IS RELATIVELY WEAK AND LIKELY REFLECTS INCREASED LOCAL REMARK 99 CONFORMATIONAL FLEXIBILITY OF THE MAIN CHAIN IN THIS REMARK 99 REGION. REMARK 99 GLN A 31 CA REMARK 99 ALA A 32 N REMARK 99 ALA A 32 CA REMARK 99 DENSITY FOR THE SIDE CHAINS OF THE LISTED RESIDUES IS REMARK 99 RELATIVELY POORLY DEFINED. THE MODEL REPRESENTS THE REMARK 99 MOST PROBABLE CONFORMATIONS FOR THESE RESIDUES BASED REMARK 99 ON THE OBSERVED DENSITY. REMARK 99 GLU A 20 REMARK 99 GLU A 21 REMARK 99 LYS A 28 REMARK 99 LEU A 29 REMARK 99 GLN A 31 REMARK 99 ALA A 32 REMARK 99 GLN A 33 REMARK 99 LYS A 34 REMARK 99 GLU A 112 REMARK 99 GLU A 140 REMARK 99 ARG A 141 REMARK 99 LYS A 169 REMARK 99 LYS A 173 REMARK 99 ARG A 189 REMARK 99 ARG A 198 REMARK 99 GLU A 199 REMARK 99 LYS A 213 REMARK 99 LEU A 214 REMARK 99 LYS A 215 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-MAR-01. REMARK 100 THE DEPOSITION ID IS D_1000012972. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-APR-99 REMARK 200 TEMPERATURE (KELVIN) : 291 REMARK 200 PH : 6.3 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13974 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 40.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.7 REMARK 200 DATA REDUNDANCY : 6.500 REMARK 200 R MERGE (I) : 0.06500 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 20.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.03 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.9 REMARK 200 DATA REDUNDANCY IN SHELL : 3.50 REMARK 200 R MERGE FOR SHELL (I) : 0.30900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: EPMR REMARK 200 STARTING MODEL: PDB ENTRY 1I6O REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 36.40 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, MES PH 6.3, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 42 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 34.26750 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 34.26750 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 42.93850 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 34.26750 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 34.26750 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 42.93850 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 34.26750 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.26750 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 42.93850 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 34.26750 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.26750 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 42.93850 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 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: A TETRAMER CONSTRUCTED FROM THE OPERATIONS -Y, -X, -Z; Y, X, REMARK 300 -Z; -1-X, 1-Y, Z IS THOUGHT TO EXIST IN SOLUTION UNDER REMARK 300 PHYSIOLOGICAL CONDITIONS. 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 15570 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 33060 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -83.0 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 137.07000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 1.000000 0.000000 -68.53500 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 68.53500 REMARK 350 BIOMT3 3 0.000000 0.000000 -1.000000 85.87700 REMARK 350 BIOMT1 4 0.000000 -1.000000 0.000000 68.53500 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 68.53500 REMARK 350 BIOMT3 4 0.000000 0.000000 -1.000000 85.87700 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 MET A 1 REMARK 465 HIS A 216 REMARK 465 ALA A 217 REMARK 465 ASN A 218 REMARK 465 HIS A 219 REMARK 465 LYS A 220 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 GLU A 21 -31.31 -151.41 REMARK 500 ASP A 22 67.28 -168.13 REMARK 500 ALA A 32 87.51 -52.75 REMARK 500 SER A 45 53.28 39.78 REMARK 500 ASP A 185 -2.91 -150.25 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 42 SG REMARK 620 2 ASP A 44 OD2 99.8 REMARK 620 3 HIS A 98 NE2 121.9 100.3 REMARK 620 4 CYS A 101 SG 113.3 112.2 108.1 REMARK 620 N 1 2 3 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1I6O RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF E. COLI BETA CARBONIC ANHYDRASE (ECCA) IN A REMARK 900 DIFFERENT SPACE GROUP, P4322, SOLVED TO 2.2A RESOLUTION DBREF 1I6P A 1 220 UNP P61517 CAN_ECOLI 1 220 SEQRES 1 A 220 MET LYS ASP ILE ASP THR LEU ILE SER ASN ASN ALA LEU SEQRES 2 A 220 TRP SER LYS MET LEU VAL GLU GLU ASP PRO GLY PHE PHE SEQRES 3 A 220 GLU LYS LEU ALA GLN ALA GLN LYS PRO ARG PHE LEU TRP SEQRES 4 A 220 ILE GLY CYS SER ASP SER ARG VAL PRO ALA GLU ARG LEU SEQRES 5 A 220 THR GLY LEU GLU PRO GLY GLU LEU PHE VAL HIS ARG ASN SEQRES 6 A 220 VAL ALA ASN LEU VAL ILE HIS THR ASP LEU ASN CYS LEU SEQRES 7 A 220 SER VAL VAL GLN TYR ALA VAL ASP VAL LEU GLU VAL GLU SEQRES 8 A 220 HIS ILE ILE ILE CYS GLY HIS TYR GLY CYS GLY GLY VAL SEQRES 9 A 220 GLN ALA ALA VAL GLU ASN PRO GLU LEU GLY LEU ILE ASN SEQRES 10 A 220 ASN TRP LEU LEU HIS ILE ARG ASP ILE TRP PHE LYS HIS SEQRES 11 A 220 SER SER LEU LEU GLY GLU MET PRO GLN GLU ARG ARG LEU SEQRES 12 A 220 ASP THR LEU CYS GLU LEU ASN VAL MET GLU GLN VAL TYR SEQRES 13 A 220 ASN LEU GLY HIS SER THR ILE MET GLN SER ALA TRP LYS SEQRES 14 A 220 ARG GLY GLN LYS VAL THR ILE HIS GLY TRP ALA TYR GLY SEQRES 15 A 220 ILE HIS ASP GLY LEU LEU ARG ASP LEU ASP VAL THR ALA SEQRES 16 A 220 THR ASN ARG GLU THR LEU GLU GLN ARG TYR ARG HIS GLY SEQRES 17 A 220 ILE SER ASN LEU LYS LEU LYS HIS ALA ASN HIS LYS HET ZN A 301 1 HETNAM ZN ZINC ION FORMUL 2 ZN ZN 2+ FORMUL 3 HOH *62(H2 O) HELIX 1 1 ASP A 3 GLU A 20 1 18 HELIX 2 2 PHE A 26 GLN A 31 1 6 HELIX 3 3 PRO A 48 GLY A 54 1 7 HELIX 4 4 ASP A 74 VAL A 87 1 14 HELIX 5 5 CYS A 101 ASN A 110 1 10 HELIX 6 6 LEU A 115 HIS A 130 1 16 HELIX 7 7 HIS A 130 GLY A 135 1 6 HELIX 8 8 GLU A 136 MET A 137 5 2 HELIX 9 9 PRO A 138 GLU A 140 5 3 HELIX 10 10 ARG A 141 SER A 161 1 21 HELIX 11 11 SER A 161 ARG A 170 1 10 HELIX 12 12 ASN A 197 LYS A 215 1 19 SHEET 1 A 5 LEU A 60 ASN A 65 0 SHEET 2 A 5 PHE A 37 CYS A 42 1 O PHE A 37 N PHE A 61 SHEET 3 A 5 HIS A 92 HIS A 98 1 O HIS A 92 N LEU A 38 SHEET 4 A 5 THR A 175 TYR A 181 1 O THR A 175 N ILE A 93 SHEET 5 A 5 LEU A 188 ASP A 190 -1 N ARG A 189 O ALA A 180 LINK SG CYS A 42 ZN ZN A 301 1555 1555 2.34 LINK OD2 ASP A 44 ZN ZN A 301 1555 1555 2.10 LINK NE2 HIS A 98 ZN ZN A 301 1555 1555 2.21 LINK SG CYS A 101 ZN ZN A 301 1555 1555 2.37 SITE 1 AC1 4 CYS A 42 ASP A 44 HIS A 98 CYS A 101 CRYST1 68.535 68.535 85.877 90.00 90.00 90.00 P 42 21 2 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 0.014591 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014591 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011645 0.00000