HEADER HYDROLASE 12-JUN-02 1M08 TITLE CRYSTAL STRUCTURE OF THE UNBOUND NUCLEASE DOMAIN OF COLE7 COMPND MOL_ID: 1; COMPND 2 MOLECULE: COLICIN E7; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: NUCLEASE DOMAIN; COMPND 5 EC: 3.1.-.-; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI STR. K12 SUBSTR.; SOURCE 3 ORGANISM_TAXID: 316407; SOURCE 4 STRAIN: W3110; SOURCE 5 GENE: COLE7 OR CEA; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: M15; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PQE70 KEYWDS HNH MOTIF, ENDONUCLEASE, COLICIN, ZN-BINDING PROTEIN, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR Y.S.CHENG,K.C.HSIA,L.G.DOUDEVA,K.F.CHAK,H.S.YUAN REVDAT 5 08-NOV-23 1M08 1 REMARK REVDAT 4 21-DEC-22 1M08 1 REMARK SEQADV LINK REVDAT 3 13-JUL-11 1M08 1 VERSN REVDAT 2 24-FEB-09 1M08 1 VERSN REVDAT 1 11-DEC-02 1M08 0 JRNL AUTH Y.S.CHENG,K.C.HSIA,L.G.DOUDEVA,K.F.CHAK,H.S.YUAN JRNL TITL THE CRYSTAL STRUCTURE OF THE NUCLEASE DOMAIN OF COLICIN E7 JRNL TITL 2 SUGGESTS A MECHANISM FOR BINDING TO DOUBLE-STRANDED DNA BY JRNL TITL 3 THE H-N-H ENDONUCLEASES JRNL REF J.MOL.BIOL. V. 324 227 2002 JRNL REFN ISSN 0022-2836 JRNL PMID 12441102 JRNL DOI 10.1016/S0022-2836(02)01092-6 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.P.KO,C.C.LIAO,W.Y.KU,K.F.CHAK,H.S.YUAN REMARK 1 TITL THE CRYSTAL STRUCTURE OF THE DNASE DOMAIN OF COLICIN E7 IN REMARK 1 TITL 2 COMPLEX WITH ITS INHIBITOR IM7 PROTEIN REMARK 1 REF STRUCTURE V. 7 91 1999 REMARK 1 REFN ISSN 0969-2126 REMARK 1 DOI 10.1016/S0969-2126(99)80012-4 REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.61 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 369065.680 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.6 REMARK 3 NUMBER OF REFLECTIONS : 16016 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) : 0.187 REMARK 3 FREE R VALUE : 0.240 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1603 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 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) : 2.10 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.23 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 89.20 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2266 REMARK 3 BIN R VALUE (WORKING SET) : 0.2020 REMARK 3 BIN FREE R VALUE : 0.2730 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.90 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 278 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.016 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2116 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 12 REMARK 3 SOLVENT ATOMS : 224 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.79000 REMARK 3 B22 (A**2) : -0.73000 REMARK 3 B33 (A**2) : -5.06000 REMARK 3 B12 (A**2) : -2.78000 REMARK 3 B13 (A**2) : 1.49000 REMARK 3 B23 (A**2) : -0.43000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.22 REMARK 3 ESD FROM SIGMAA (A) : 0.13 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) : 0.29 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.20 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.930 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) : 1.490 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.190 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.500 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.710 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.37 REMARK 3 BSOL : 52.34 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 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1M08 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 14-JUN-02. REMARK 100 THE DEPOSITION ID IS D_1000016435. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-AUG-01 REMARK 200 TEMPERATURE (KELVIN) : 120 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 RU300 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS II REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16335 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 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 (%) : 95.0 REMARK 200 DATA REDUNDANCY : 3.300 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04400 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 22.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.18 REMARK 200 COMPLETENESS FOR SHELL (%) : 92.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.17000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 7.000 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: 7CEI REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.50 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM PHOSPHATE, SODIUM CHLORIDE, REMARK 280 ZINC CHLORIDE, AMMONIUM ACETATE, PH 7.0, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 298.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,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 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT REMARK 300 WHICH CONSISTS OF 2 CHAIN(S). THESE TWO CHAINS REPRESENT REMARK 300 THE BIOLOGICAL DIMER, OR TWO BIOLOGICAL MONOMERS. 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 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 ASN A 461 -156.41 -95.28 REMARK 500 ASP A 471 -133.06 54.42 REMARK 500 ASN B 461 -149.98 -110.85 REMARK 500 ASP B 471 -132.18 51.36 REMARK 500 ASP B 486 -2.54 73.33 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 600 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 544 ND1 REMARK 620 2 HIS A 569 NE2 110.0 REMARK 620 3 HIS A 573 NE2 109.3 101.9 REMARK 620 4 PO4 A 601 O1 102.3 116.3 117.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN B 600 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 544 ND1 REMARK 620 2 HIS B 569 NE2 108.3 REMARK 620 3 HIS B 573 NE2 109.6 97.3 REMARK 620 4 PO4 B 601 O1 103.8 112.9 124.3 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 600 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 601 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 600 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 B 601 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 7CEI RELATED DB: PDB REMARK 900 7CEI CONTAINS THE COMPLEX STRUCTURE BETWEEN THE NUCLEASE DOMAIN OF REMARK 900 COLE7 AND ITS INHIBITOR IM7 PROTEIN REMARK 900 RELATED ID: 1CEI RELATED DB: PDB REMARK 900 1CEI CONTAINS THE CRYSTAL STRUCTURE OF THE IM7 PROTEIN DBREF 1M08 A 447 576 UNP Q47112 CEA7_ECOLI 447 576 DBREF 1M08 B 447 576 UNP Q47112 CEA7_ECOLI 447 576 SEQADV 1M08 MET A 446 UNP Q47112 INITIATING METHIONINE SEQADV 1M08 MET B 446 UNP Q47112 INITIATING METHIONINE SEQRES 1 A 131 MET ARG ASN LYS PRO GLY LYS ALA THR GLY LYS GLY LYS SEQRES 2 A 131 PRO VAL ASN ASN LYS TRP LEU ASN ASN ALA GLY LYS ASP SEQRES 3 A 131 LEU GLY SER PRO VAL PRO ASP ARG ILE ALA ASN LYS LEU SEQRES 4 A 131 ARG ASP LYS GLU PHE LYS SER PHE ASP ASP PHE ARG LYS SEQRES 5 A 131 LYS PHE TRP GLU GLU VAL SER LYS ASP PRO GLU LEU SER SEQRES 6 A 131 LYS GLN PHE SER ARG ASN ASN ASN ASP ARG MET LYS VAL SEQRES 7 A 131 GLY LYS ALA PRO LYS THR ARG THR GLN ASP VAL SER GLY SEQRES 8 A 131 LYS ARG THR SER PHE GLU LEU HIS HIS GLU LYS PRO ILE SEQRES 9 A 131 SER GLN ASN GLY GLY VAL TYR ASP MET ASP ASN ILE SER SEQRES 10 A 131 VAL VAL THR PRO LYS ARG HIS ILE ASP ILE HIS ARG GLY SEQRES 11 A 131 LYS SEQRES 1 B 131 MET ARG ASN LYS PRO GLY LYS ALA THR GLY LYS GLY LYS SEQRES 2 B 131 PRO VAL ASN ASN LYS TRP LEU ASN ASN ALA GLY LYS ASP SEQRES 3 B 131 LEU GLY SER PRO VAL PRO ASP ARG ILE ALA ASN LYS LEU SEQRES 4 B 131 ARG ASP LYS GLU PHE LYS SER PHE ASP ASP PHE ARG LYS SEQRES 5 B 131 LYS PHE TRP GLU GLU VAL SER LYS ASP PRO GLU LEU SER SEQRES 6 B 131 LYS GLN PHE SER ARG ASN ASN ASN ASP ARG MET LYS VAL SEQRES 7 B 131 GLY LYS ALA PRO LYS THR ARG THR GLN ASP VAL SER GLY SEQRES 8 B 131 LYS ARG THR SER PHE GLU LEU HIS HIS GLU LYS PRO ILE SEQRES 9 B 131 SER GLN ASN GLY GLY VAL TYR ASP MET ASP ASN ILE SER SEQRES 10 B 131 VAL VAL THR PRO LYS ARG HIS ILE ASP ILE HIS ARG GLY SEQRES 11 B 131 LYS HET ZN A 600 1 HET PO4 A 601 5 HET ZN B 600 1 HET PO4 B 601 5 HETNAM ZN ZINC ION HETNAM PO4 PHOSPHATE ION FORMUL 3 ZN 2(ZN 2+) FORMUL 4 PO4 2(O4 P 3-) FORMUL 7 HOH *224(H2 O) HELIX 1 1 LYS A 463 ALA A 468 5 6 HELIX 2 2 PRO A 477 ARG A 485 1 9 HELIX 3 3 SER A 491 ASP A 506 1 16 HELIX 4 4 ASP A 506 LYS A 511 1 6 HELIX 5 5 SER A 514 VAL A 523 1 10 HELIX 6 6 ARG A 530 VAL A 534 5 5 HELIX 7 7 PRO A 548 ASN A 552 5 5 HELIX 8 8 THR A 565 HIS A 573 1 9 HELIX 9 9 LYS B 463 ALA B 468 5 6 HELIX 10 10 PRO B 477 ARG B 485 1 9 HELIX 11 11 SER B 491 ASP B 506 1 16 HELIX 12 12 ASP B 506 LYS B 511 1 6 HELIX 13 13 SER B 514 VAL B 523 1 10 HELIX 14 14 ARG B 530 VAL B 534 5 5 HELIX 15 15 PRO B 548 ASN B 552 5 5 HELIX 16 16 THR B 565 HIS B 573 1 9 SHEET 1 A 2 GLY A 451 LYS A 452 0 SHEET 2 A 2 GLU A 488 PHE A 489 -1 O PHE A 489 N GLY A 451 SHEET 1 B 3 SER A 474 PRO A 475 0 SHEET 2 B 3 ILE A 561 VAL A 564 -1 O VAL A 563 N SER A 474 SHEET 3 B 3 GLU A 542 HIS A 545 -1 N HIS A 544 O SER A 562 SHEET 1 C 2 GLY B 451 LYS B 452 0 SHEET 2 C 2 GLU B 488 PHE B 489 -1 O PHE B 489 N GLY B 451 SHEET 1 D 3 SER B 474 PRO B 475 0 SHEET 2 D 3 ILE B 561 VAL B 564 -1 O VAL B 563 N SER B 474 SHEET 3 D 3 GLU B 542 HIS B 545 -1 N GLU B 542 O VAL B 564 LINK ND1 HIS A 544 ZN ZN A 600 1555 1555 1.86 LINK NE2 HIS A 569 ZN ZN A 600 1555 1555 2.10 LINK NE2 HIS A 573 ZN ZN A 600 1555 1555 2.03 LINK ZN ZN A 600 O1 PO4 A 601 1555 1555 1.79 LINK ND1 HIS B 544 ZN ZN B 600 1555 1555 2.05 LINK NE2 HIS B 569 ZN ZN B 600 1555 1555 2.08 LINK NE2 HIS B 573 ZN ZN B 600 1555 1555 2.09 LINK ZN ZN B 600 O1 PO4 B 601 1555 1555 1.90 SITE 1 AC1 4 HIS A 544 HIS A 569 HIS A 573 PO4 A 601 SITE 1 AC2 8 ARG A 447 HIS A 544 HIS A 545 HIS A 569 SITE 2 AC2 8 HIS A 573 ZN A 600 LYS B 576 HOH B 811 SITE 1 AC3 4 HIS B 544 HIS B 569 HIS B 573 PO4 B 601 SITE 1 AC4 8 LYS A 576 HOH A 760 ARG B 447 HIS B 544 SITE 2 AC4 8 HIS B 545 HIS B 569 HIS B 573 ZN B 600 CRYST1 37.700 39.200 53.200 96.80 103.90 91.40 P 1 2 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 0.026525 0.000648 0.006703 0.00000 SCALE2 0.000000 0.025518 0.003295 0.00000 SCALE3 0.000000 0.000000 0.019525 0.00000