HEADER HYDROLASE 15-MAY-12 4F6Z TITLE MUTAGENESIS OF ZINC LIGAND RESIDUE CYS221 REVEALS PLASTICITY IN THE TITLE 2 IMP-1 METALLO-B-LACTAMASE ACTIVE SITE COMPND MOL_ID: 1; COMPND 2 MOLECULE: BETA-LACTAMASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: BETA-LACTAMASE IMP-1, BLA-IMP PROTEIN, EXTENDED-SPECTRUM B- COMPND 5 LACTAMASE, IMP-1 METALLO-BETA-LACTMASE, METALLO BETA LACTAMASE, COMPND 6 METALLO-BETA-LACTAMASE, METALLO-BETA-LACTAMASE IMP-1, METALLO-BETA- COMPND 7 LACTAMASE BLAIMP-1; COMPND 8 ENGINEERED: YES; COMPND 9 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PSEUDOMONAS AERUGINOSA; SOURCE 3 ORGANISM_TAXID: 287; SOURCE 4 GENE: BLAIMP-1, BLA IMP, BLA-IMP, BLAESP, IMP; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS METALLO-B-LACTAMASE, B-LACTAMASE, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR L.B.HORTON,S.SHANKER,B.SANKARAN,R.MIKULSKI,N.G.BROWN,K.PHILLIPS, AUTHOR 2 E.LYKISSA,B.V.V.PRASAD,T.G.PALZKILL REVDAT 3 13-SEP-23 4F6Z 1 REMARK REVDAT 2 30-JUN-21 4F6Z 1 AUTHOR REMARK SEQADV LINK REVDAT 1 27-MAR-13 4F6Z 0 JRNL AUTH L.B.HORTON,S.SHANKER,R.MIKULSKI,N.G.BROWN,K.J.PHILLIPS, JRNL AUTH 2 E.LYKISSA,B.V.VENKATARAM PRASAD,T.PALZKILL JRNL TITL MUTAGENESIS OF ZINC LIGAND RESIDUE CYS221 REVEALS PLASTICITY JRNL TITL 2 IN THE IMP-1 METALLO-BETA-LACTAMASE ACTIVE SITE JRNL REF ANTIMICROB.AGENTS CHEMOTHER. V. 56 5667 2012 JRNL REFN ISSN 0066-4804 JRNL PMID 22908171 JRNL DOI 10.1128/AAC.01276-12 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.7_650) 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 : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.24 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 89.2 REMARK 3 NUMBER OF REFLECTIONS : 15601 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.201 REMARK 3 R VALUE (WORKING SET) : 0.199 REMARK 3 FREE R VALUE : 0.249 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.090 REMARK 3 FREE R VALUE TEST SET COUNT : 794 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 25.2469 - 3.6313 0.83 2425 113 0.1798 0.2213 REMARK 3 2 3.6313 - 2.8836 0.88 2433 133 0.1898 0.2149 REMARK 3 3 2.8836 - 2.5195 0.90 2470 130 0.2240 0.3314 REMARK 3 4 2.5195 - 2.2893 0.91 2481 138 0.2138 0.2919 REMARK 3 5 2.2893 - 2.1253 0.92 2513 131 0.2183 0.2603 REMARK 3 6 2.1253 - 2.0000 0.93 2485 149 0.2449 0.2836 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 REMARK 3 SHRINKAGE RADIUS : 0.83 REMARK 3 K_SOL : 0.39 REMARK 3 B_SOL : 60.42 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.270 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 25.880 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -6.60500 REMARK 3 B22 (A**2) : 8.04120 REMARK 3 B33 (A**2) : -1.43620 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 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 : 0.015 1856 REMARK 3 ANGLE : 1.044 2431 REMARK 3 CHIRALITY : 0.066 266 REMARK 3 PLANARITY : 0.005 306 REMARK 3 DIHEDRAL : 13.201 648 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 5 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: CHAIN 'A' AND (RESSEQ 4:40) REMARK 3 ORIGIN FOR THE GROUP (A): 24.6595 21.7465 17.9066 REMARK 3 T TENSOR REMARK 3 T11: 0.2448 T22: 0.2693 REMARK 3 T33: 0.1856 T12: -0.0346 REMARK 3 T13: -0.0266 T23: -0.0308 REMARK 3 L TENSOR REMARK 3 L11: 1.5627 L22: 1.1405 REMARK 3 L33: 0.7119 L12: -0.1294 REMARK 3 L13: 0.0605 L23: 0.3110 REMARK 3 S TENSOR REMARK 3 S11: -0.0296 S12: -0.2755 S13: 0.0191 REMARK 3 S21: 0.3327 S22: 0.0449 S23: -0.3006 REMARK 3 S31: -0.2101 S32: -0.1575 S33: 0.0244 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN 'A' AND (RESSEQ 41:85) REMARK 3 ORIGIN FOR THE GROUP (A): 24.5619 12.3925 12.6772 REMARK 3 T TENSOR REMARK 3 T11: 0.1808 T22: 0.1942 REMARK 3 T33: 0.1987 T12: 0.0003 REMARK 3 T13: -0.0108 T23: 0.0396 REMARK 3 L TENSOR REMARK 3 L11: 1.0344 L22: 0.3993 REMARK 3 L33: 0.6663 L12: -0.0527 REMARK 3 L13: 0.2069 L23: -0.2985 REMARK 3 S TENSOR REMARK 3 S11: -0.0342 S12: -0.1517 S13: -0.0789 REMARK 3 S21: -0.0416 S22: -0.0586 S23: -0.2197 REMARK 3 S31: 0.0740 S32: 0.1008 S33: 0.0230 REMARK 3 TLS GROUP : 3 REMARK 3 SELECTION: CHAIN 'A' AND (RESSEQ 86:172) REMARK 3 ORIGIN FOR THE GROUP (A): 12.7663 16.3505 7.7505 REMARK 3 T TENSOR REMARK 3 T11: 0.1583 T22: 0.2027 REMARK 3 T33: 0.1744 T12: -0.0303 REMARK 3 T13: 0.0108 T23: -0.0061 REMARK 3 L TENSOR REMARK 3 L11: 1.8030 L22: 0.6833 REMARK 3 L33: 0.6061 L12: 0.1024 REMARK 3 L13: 0.2359 L23: 0.0861 REMARK 3 S TENSOR REMARK 3 S11: -0.0319 S12: -0.0679 S13: -0.0742 REMARK 3 S21: 0.0343 S22: -0.1015 S23: 0.0146 REMARK 3 S31: 0.0657 S32: -0.1065 S33: 0.0465 REMARK 3 TLS GROUP : 4 REMARK 3 SELECTION: CHAIN 'A' AND (RESSEQ 173:220) REMARK 3 ORIGIN FOR THE GROUP (A): 5.5349 28.7145 15.2525 REMARK 3 T TENSOR REMARK 3 T11: 0.3024 T22: 0.4062 REMARK 3 T33: 0.3313 T12: 0.0790 REMARK 3 T13: -0.0377 T23: -0.1566 REMARK 3 L TENSOR REMARK 3 L11: 1.3462 L22: 0.3696 REMARK 3 L33: 0.2830 L12: 0.0572 REMARK 3 L13: 0.4675 L23: 0.2272 REMARK 3 S TENSOR REMARK 3 S11: -0.0691 S12: -0.4969 S13: 0.5478 REMARK 3 S21: -0.0095 S22: -0.2502 S23: 0.3600 REMARK 3 S31: -0.4231 S32: -0.6940 S33: 0.0224 REMARK 3 TLS GROUP : 5 REMARK 3 SELECTION: CHAIN 'A' AND (RESSEQ 231:236) REMARK 3 ORIGIN FOR THE GROUP (A): 20.3815 41.6013 14.5888 REMARK 3 T TENSOR REMARK 3 T11: 0.4835 T22: 0.7048 REMARK 3 T33: 0.5723 T12: 0.1665 REMARK 3 T13: -0.2358 T23: -0.2726 REMARK 3 L TENSOR REMARK 3 L11: 0.6247 L22: 0.3950 REMARK 3 L33: 0.2869 L12: -0.0181 REMARK 3 L13: 0.1751 L23: 0.0624 REMARK 3 S TENSOR REMARK 3 S11: -0.1200 S12: -0.1404 S13: 0.1671 REMARK 3 S21: -0.0490 S22: -0.0398 S23: 0.1182 REMARK 3 S31: -0.0877 S32: -0.1793 S33: 0.1733 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 4F6Z COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-MAY-12. REMARK 100 THE DEPOSITION ID IS D_1000072533. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-JAN-10 REMARK 200 TEMPERATURE (KELVIN) : 77 REMARK 200 PH : 7.0 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 FR-E+ SUPERBRIGHT REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS HTC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : D*TREK REMARK 200 DATA SCALING SOFTWARE : D*TREK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15635 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 25.240 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.2 REMARK 200 DATA REDUNDANCY : 4.040 REMARK 200 R MERGE (I) : 0.05700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 11.2000 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) : 2.07 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.86 REMARK 200 R MERGE FOR SHELL (I) : 0.31100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: PDB ENTRY 4F6H REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.52 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.39 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 25 MMTRIS-HCL CONTAINING 1 MM ZINC REMARK 280 SULFATE AT PH 7.0, AND 25 MMTRIS-HCL WITH 1 MM ZINC CHLORIDE AT REMARK 280 PH 7.0, AND THE MOTHER LIQUOR WHICH CONSISTED OF 0.1 M TRI- REMARK 280 SODIUM CITRATE (PH 5.5) IN 40% PEG 600., 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 25.01550 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 41.77600 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.88700 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 41.77600 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.01550 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.88700 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 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 ALA A 1 REMARK 465 GLU A 2 REMARK 465 SER A 3 REMARK 465 LEU A 4 REMARK 465 SER A 220 REMARK 465 LYS A 221 REMARK 465 LYS A 222 REMARK 465 PRO A 223 REMARK 465 SER A 224 REMARK 465 LYS A 225 REMARK 465 PRO A 226 REMARK 465 SER A 227 REMARK 465 ASN A 228 REMARK 465 TRP A 229 REMARK 465 SER A 230 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 TRP A 28 -65.61 -138.08 REMARK 500 ASP A 48 149.63 80.10 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 HIS A 77 NE2 REMARK 620 2 HIS A 79 ND1 105.0 REMARK 620 3 HIS A 139 NE2 108.2 113.5 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 FLC A 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4F6H RELATED DB: PDB REMARK 900 C221G IMP-1 DBREF 4F6Z A 1 228 UNP Q79MP6 Q79MP6_PSEAI 19 246 SEQADV 4F6Z GLY A 158 UNP Q79MP6 CYS 176 ENGINEERED MUTATION SEQADV 4F6Z TRP A 229 UNP Q79MP6 EXPRESSION TAG SEQADV 4F6Z SER A 230 UNP Q79MP6 EXPRESSION TAG SEQADV 4F6Z HIS A 231 UNP Q79MP6 EXPRESSION TAG SEQADV 4F6Z PRO A 232 UNP Q79MP6 EXPRESSION TAG SEQADV 4F6Z GLN A 233 UNP Q79MP6 EXPRESSION TAG SEQADV 4F6Z PHE A 234 UNP Q79MP6 EXPRESSION TAG SEQADV 4F6Z GLU A 235 UNP Q79MP6 EXPRESSION TAG SEQADV 4F6Z LYS A 236 UNP Q79MP6 EXPRESSION TAG SEQRES 1 A 236 ALA GLU SER LEU PRO ASP LEU LYS ILE GLU LYS LEU ASP SEQRES 2 A 236 GLU GLY VAL TYR VAL HIS THR SER PHE GLU GLU VAL ASN SEQRES 3 A 236 GLY TRP GLY VAL VAL PRO LYS HIS GLY LEU VAL VAL LEU SEQRES 4 A 236 VAL ASN ALA GLU ALA TYR LEU ILE ASP THR PRO PHE THR SEQRES 5 A 236 ALA LYS ASP THR GLU LYS LEU VAL THR TRP PHE VAL GLU SEQRES 6 A 236 ARG GLY TYR LYS ILE LYS GLY SER ILE SER SER HIS PHE SEQRES 7 A 236 HIS SER ASP SER THR GLY GLY ILE GLU TRP LEU ASN SER SEQRES 8 A 236 ARG SER ILE PRO THR TYR ALA SER GLU LEU THR ASN GLU SEQRES 9 A 236 LEU LEU LYS LYS ASP GLY LYS VAL GLN ALA THR ASN SER SEQRES 10 A 236 PHE SER GLY VAL ASN TYR TRP LEU VAL LYS ASN LYS ILE SEQRES 11 A 236 GLU VAL PHE TYR PRO GLY PRO GLY HIS THR PRO ASP ASN SEQRES 12 A 236 VAL VAL VAL TRP LEU PRO GLU ARG LYS ILE LEU PHE GLY SEQRES 13 A 236 GLY GLY PHE ILE LYS PRO TYR GLY LEU GLY ASN LEU GLY SEQRES 14 A 236 ASP ALA ASN ILE GLU ALA TRP PRO LYS SER ALA LYS LEU SEQRES 15 A 236 LEU LYS SER LYS TYR GLY LYS ALA LYS LEU VAL VAL PRO SEQRES 16 A 236 SER HIS SER GLU VAL GLY ASP ALA SER LEU LEU LYS LEU SEQRES 17 A 236 THR LEU GLU GLN ALA VAL LYS GLY LEU ASN GLU SER LYS SEQRES 18 A 236 LYS PRO SER LYS PRO SER ASN TRP SER HIS PRO GLN PHE SEQRES 19 A 236 GLU LYS HET ZN A 301 1 HET FLC A 302 13 HETNAM ZN ZINC ION HETNAM FLC CITRATE ANION FORMUL 2 ZN ZN 2+ FORMUL 3 FLC C6 H5 O7 3- FORMUL 4 HOH *151(H2 O) HELIX 1 1 THR A 52 ARG A 66 1 15 HELIX 2 2 HIS A 79 GLY A 84 1 6 HELIX 3 3 GLY A 85 ARG A 92 1 8 HELIX 4 4 GLU A 100 ASP A 109 1 10 HELIX 5 5 ALA A 175 GLY A 188 1 14 HELIX 6 6 ALA A 203 ASN A 218 1 16 SHEET 1 A 7 LYS A 8 ASP A 13 0 SHEET 2 A 7 VAL A 16 VAL A 25 -1 O VAL A 16 N LEU A 12 SHEET 3 A 7 GLY A 29 VAL A 40 -1 O VAL A 31 N GLU A 23 SHEET 4 A 7 GLU A 43 ILE A 47 -1 O ILE A 47 N LEU A 36 SHEET 5 A 7 LYS A 69 ILE A 74 1 O LYS A 71 N ALA A 44 SHEET 6 A 7 THR A 96 SER A 99 1 O TYR A 97 N SER A 73 SHEET 7 A 7 ASN A 116 PHE A 118 1 O ASN A 116 N THR A 96 SHEET 1 B 5 ASN A 122 VAL A 126 0 SHEET 2 B 5 ILE A 130 PHE A 133 -1 O VAL A 132 N TYR A 123 SHEET 3 B 5 VAL A 145 LEU A 148 -1 O TRP A 147 N GLU A 131 SHEET 4 B 5 ILE A 153 GLY A 157 -1 O PHE A 155 N VAL A 146 SHEET 5 B 5 LEU A 192 PRO A 195 1 O LEU A 192 N LEU A 154 LINK NE2 HIS A 77 ZN ZN A 301 1555 1555 2.12 LINK ND1 HIS A 79 ZN ZN A 301 1555 1555 2.03 LINK NE2 HIS A 139 ZN ZN A 301 1555 1555 2.16 SITE 1 AC1 4 HIS A 77 HIS A 79 HIS A 139 FLC A 302 SITE 1 AC2 12 LYS A 33 HIS A 77 HIS A 79 ASP A 81 SITE 2 AC2 12 HIS A 139 GLY A 158 LYS A 161 ASN A 167 SITE 3 AC2 12 SER A 196 HIS A 197 ZN A 301 HOH A 449 CRYST1 50.031 59.774 83.552 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 0.019988 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016730 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011969 0.00000