HEADER HYDROLASE 28-JUN-13 4LGJ TITLE CRYSTAL STRUCTURE AND MECHANISM OF A TYPE III SECRETION PROTEASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: UNCHARACTERIZED PROTEIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 23-278; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI O157:H7; SOURCE 3 ORGANISM_TAXID: 83334; SOURCE 4 GENE: ECS0847, Z0986; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS METALLOPEPTIDASE, A TYPE III SECRETION PROTEASE, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR W.Q.LI,Y.X.LIU,X.L.SHENG,C.Y.YAN,J.W.WANG REVDAT 2 25-FEB-15 4LGJ 1 JRNL REVDAT 1 15-JAN-14 4LGJ 0 JRNL AUTH W.LI,Y.LIU,X.SHENG,P.YIN,F.HU,Y.LIU,C.CHEN,Q.LI,C.YAN,J.WANG JRNL TITL STRUCTURE AND MECHANISM OF A TYPE III SECRETION PROTEASE, JRNL TITL 2 NLEC JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 70 40 2014 JRNL REFN ISSN 0907-4449 JRNL PMID 24419377 JRNL DOI 10.1107/S1399004713024619 REMARK 2 REMARK 2 RESOLUTION. 1.55 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.7.3_928) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE- REMARK 3 : KUNSTLEVE,LI-WEI HUNG,ROBERT IMMORMINO, REMARK 3 : TOM IOERGER,AIRLIE MCCOY,ERIK MCKEE,NIGEL REMARK 3 : MORIARTY,REETAL PAI,RANDY READ,JANE REMARK 3 : RICHARDSON,DAVID RICHARDSON,TOD ROMO,JIM REMARK 3 : SACCHETTINI,NICHOLAS SAUTER,JACOB SMITH, REMARK 3 : LAURENT STORONI,TOM TERWILLIGER,PETER REMARK 3 : ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.55 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 39.40 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.360 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 3 NUMBER OF REFLECTIONS : 36637 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.172 REMARK 3 R VALUE (WORKING SET) : 0.171 REMARK 3 FREE R VALUE : 0.194 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.010 REMARK 3 FREE R VALUE TEST SET COUNT : 1835 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 39.4159 - 3.6358 1.00 2862 170 0.1608 0.1784 REMARK 3 2 3.6358 - 2.8861 0.98 2701 134 0.1608 0.1692 REMARK 3 3 2.8861 - 2.5214 0.99 2670 148 0.1662 0.1968 REMARK 3 4 2.5214 - 2.2909 1.00 2696 160 0.1652 0.1934 REMARK 3 5 2.2909 - 2.1267 1.00 2692 128 0.1681 0.2135 REMARK 3 6 2.1267 - 2.0013 1.00 2701 144 0.1797 0.1951 REMARK 3 7 2.0013 - 1.9011 1.00 2667 141 0.1792 0.2101 REMARK 3 8 1.9011 - 1.8183 1.00 2633 145 0.1731 0.2037 REMARK 3 9 1.8183 - 1.7483 1.00 2709 135 0.1761 0.2156 REMARK 3 10 1.7483 - 1.6880 1.00 2632 122 0.1845 0.2406 REMARK 3 11 1.6880 - 1.6352 1.00 2677 147 0.1992 0.2093 REMARK 3 12 1.6352 - 1.5885 1.00 2656 135 0.2137 0.2443 REMARK 3 13 1.5885 - 1.5500 0.95 2506 126 0.2300 0.2671 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.00 REMARK 3 SHRINKAGE RADIUS : 0.73 REMARK 3 K_SOL : 0.36 REMARK 3 B_SOL : 38.47 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.150 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 18.200 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) : 3.03340 REMARK 3 B22 (A**2) : -1.03460 REMARK 3 B33 (A**2) : -1.99870 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 : 0.006 2099 REMARK 3 ANGLE : 1.104 2852 REMARK 3 CHIRALITY : 0.077 304 REMARK 3 PLANARITY : 0.004 387 REMARK 3 DIHEDRAL : 13.989 783 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: all REMARK 3 ORIGIN FOR THE GROUP (A): 30.3784 62.7445 10.6187 REMARK 3 T TENSOR REMARK 3 T11: 0.0757 T22: 0.1005 REMARK 3 T33: 0.0863 T12: -0.0128 REMARK 3 T13: -0.0001 T23: -0.0056 REMARK 3 L TENSOR REMARK 3 L11: 0.6658 L22: 1.1433 REMARK 3 L33: 0.8050 L12: -0.3081 REMARK 3 L13: -0.3537 L23: 0.4244 REMARK 3 S TENSOR REMARK 3 S11: 0.0303 S12: -0.0462 S13: 0.0224 REMARK 3 S21: 0.0177 S22: 0.0048 S23: -0.0549 REMARK 3 S31: -0.0266 S32: 0.0460 S33: 0.0048 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 4LGJ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 04-JUL-13. REMARK 100 THE RCSB ID CODE IS RCSB080601. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-FEB-12 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL17U REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9793 REMARK 200 MONOCHROMATOR : SI 111 CHANNEL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 69523 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.550 REMARK 200 RESOLUTION RANGE LOW (A) : 40.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 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) : 1.55 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.61 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 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: PHASER REMARK 200 STARTING MODEL: 4LGI REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.86 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M (NH4)2SO4, 100 MM MES PH 6.0, REMARK 280 20% (W/V) POLYETHYLENE GLYCOL 3,000, EVAPORATION, TEMPERATURE 291K 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 22.54550 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 40.52300 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.77500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 40.52300 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 22.54550 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.77500 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 SER A 279 REMARK 465 ALA A 280 REMARK 465 VAL A 281 REMARK 465 SER A 282 REMARK 465 ASN A 283 REMARK 465 ILE A 284 REMARK 465 GLY A 285 REMARK 465 TYR A 286 REMARK 465 GLY A 287 REMARK 465 PHE A 288 REMARK 465 ILE A 289 REMARK 465 GLN A 290 REMARK 465 GLN A 291 REMARK 465 HIS A 292 REMARK 465 ASP A 293 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 637 O HOH A 701 2.15 REMARK 500 O HOH A 566 O HOH A 567 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 MET A 75 CG - SD - CE ANGL. DEV. = 9.9 DEGREES 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 LYS A 102 -167.27 -109.55 REMARK 500 ASN A 112 65.05 -114.37 REMARK 500 VAL A 140 -146.56 67.15 REMARK 500 GLN A 142 77.15 -113.55 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 183 NE2 REMARK 620 2 ASP A 194 OD2 131.2 REMARK 620 3 HIS A 187 NE2 101.4 96.4 REMARK 620 4 HOH A 416 O 109.6 108.0 106.6 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: 4LGI RELATED DB: PDB DBREF 4LGJ A 23 293 UNP Q8X834 Q8X834_ECO57 23 293 SEQADV 4LGJ SER A 107 UNP Q8X834 CYS 107 ENGINEERED MUTATION SEQADV 4LGJ SER A 132 UNP Q8X834 CYS 132 ENGINEERED MUTATION SEQADV 4LGJ SER A 149 UNP Q8X834 CYS 149 ENGINEERED MUTATION SEQRES 1 A 271 ALA PRO ASN ARG ALA GLU ASN ALA TYR ALA ASP TYR VAL SEQRES 2 A 271 LEU ASP ILE GLY LYS ARG ILE PRO LEU SER ALA ALA ASP SEQRES 3 A 271 LEU SER ASN VAL TYR GLU SER VAL ILE ARG ALA VAL HIS SEQRES 4 A 271 ASP SER ARG SER ARG LEU ILE ASP GLN HIS THR VAL ASP SEQRES 5 A 271 MET ILE GLY ASN THR VAL LEU ASP ALA LEU SER ARG SER SEQRES 6 A 271 GLN THR PHE ARG ASP ALA VAL SER TYR GLY ILE HIS ASN SEQRES 7 A 271 GLU LYS VAL HIS ILE GLY SER ILE LYS TYR ARG ASN GLU SEQRES 8 A 271 TYR GLU LEU ASN GLU GLU SER SER VAL LYS ILE ASP ASP SEQRES 9 A 271 ILE GLN SER LEU THR SER ASN GLU LEU TYR GLU TYR ASP SEQRES 10 A 271 VAL GLY GLN GLU PRO ILE PHE PRO ILE SER GLU ALA GLY SEQRES 11 A 271 GLU ASN ASP ASN GLU GLU PRO TYR VAL SER PHE SER VAL SEQRES 12 A 271 ALA PRO ASP THR ASP SER TYR GLU MET PRO SER TRP GLN SEQRES 13 A 271 GLU GLY LEU ILE HIS GLU ILE ILE HIS HIS VAL THR GLY SEQRES 14 A 271 SER SER ASP PRO SER GLY ASP SER ASN ILE GLU LEU GLY SEQRES 15 A 271 PRO THR GLU ILE LEU ALA ARG ARG VAL ALA GLN GLU LEU SEQRES 16 A 271 GLY TRP SER VAL PRO ASP PHE LYS GLY TYR ALA GLU PRO SEQRES 17 A 271 GLU ARG GLU ALA HIS LEU ARG LEU ARG ASN LEU ASN ALA SEQRES 18 A 271 LEU ARG GLN ALA ALA MET ARG HIS GLU GLU ASN GLU ARG SEQRES 19 A 271 ALA PHE PHE GLU ARG LEU GLY THR ILE SER ASP ARG TYR SEQRES 20 A 271 GLU ALA SER PRO ASP PHE THR GLU TYR SER ALA VAL SER SEQRES 21 A 271 ASN ILE GLY TYR GLY PHE ILE GLN GLN HIS ASP HET ZN A 301 1 HETNAM ZN ZINC ION FORMUL 2 ZN ZN 2+ FORMUL 3 HOH *320(H2 O) HELIX 1 1 ASN A 29 LYS A 40 1 12 HELIX 2 2 SER A 45 ASP A 62 1 18 HELIX 3 3 SER A 63 LEU A 67 5 5 HELIX 4 4 ASP A 69 SER A 87 1 19 HELIX 5 5 SER A 87 ASN A 100 1 14 HELIX 6 6 HIS A 104 ILE A 108 5 5 HELIX 7 7 ASP A 126 LEU A 130 5 5 HELIX 8 8 THR A 131 TYR A 136 5 6 HELIX 9 9 GLU A 173 GLY A 191 1 19 HELIX 10 10 GLY A 204 GLY A 218 1 15 HELIX 11 11 GLU A 229 HIS A 251 1 23 HELIX 12 12 ASN A 254 ASP A 267 1 14 SHEET 1 A 3 LYS A 109 ARG A 111 0 SHEET 2 A 3 PRO A 159 SER A 162 1 O VAL A 161 N ARG A 111 SHEET 3 A 3 GLU A 150 GLU A 153 -1 N GLU A 150 O SER A 162 SHEET 1 B 2 TYR A 114 LEU A 116 0 SHEET 2 B 2 ILE A 145 PRO A 147 -1 O PHE A 146 N GLU A 115 LINK NE2 HIS A 183 ZN ZN A 301 1555 1555 2.12 LINK OD2 ASP A 194 ZN ZN A 301 1555 1555 2.12 LINK NE2 HIS A 187 ZN ZN A 301 1555 1555 2.15 LINK ZN ZN A 301 O HOH A 416 1555 1555 2.15 SITE 1 AC1 5 HIS A 183 HIS A 187 ASP A 194 TYR A 227 SITE 2 AC1 5 HOH A 416 CRYST1 45.091 67.550 81.046 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 0.022177 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014804 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012339 0.00000 MASTER 311 0 1 12 5 0 2 6 0 0 0 21 END