HEADER IMMUNE SYSTEM 07-SEP-00 1FR2 TITLE CRYSTAL STRUCTURE OF THE E9 DNASE DOMAIN WITH A MUTANT IMMUNITY TITLE 2 PROTEIN IM9(E41A) COMPND MOL_ID: 1; COMPND 2 MOLECULE: COLICIN E9 IMMUNITY PROTEIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: IMME9, MICROCIN E9 IMMUNITY PROTEIN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: COLICIN E9; COMPND 9 CHAIN: B; COMPND 10 FRAGMENT: C-TERMINAL DOMAIN, DNASE DOMAIN; COMPND 11 EC: 3.1.21.1; COMPND 12 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PET21D (PRJ353); SOURCE 8 MOL_ID: 2; SOURCE 9 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 10 ORGANISM_TAXID: 562; SOURCE 11 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 12 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 13 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 14 EXPRESSION_SYSTEM_PLASMID: PTRC99A (PKL14) KEYWDS PROTEIN-PROTEIN COMPLEX, ZINC CONTAINING ENZYME, HNH-MOTIF, IMMUNE KEYWDS 2 SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR U.C.KUHLMANN,A.J.POMMER,G.M.MOORE,R.JAMES,C.KLEANTHOUS,A.M.HEMMINGS REVDAT 5 07-FEB-24 1FR2 1 REMARK REVDAT 4 03-NOV-21 1FR2 1 REMARK SEQADV LINK REVDAT 3 01-FEB-17 1FR2 1 AUTHOR VERSN REVDAT 2 24-FEB-09 1FR2 1 VERSN REVDAT 1 17-JUN-03 1FR2 0 JRNL AUTH U.C.KUHLMANN,A.J.POMMER,G.M.MOORE,R.JAMES,C.KLEANTHOUS, JRNL AUTH 2 A.M.HEMMINGS JRNL TITL CRYSTAL STRUCTURE OF THE E9 DNASE DOMAIN WITH A MUTANT JRNL TITL 2 IMMUNITY PROTEIN IM9(E41A) JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH U.C.KUHLMANN,A.J.POMMER,G.R.MOORE,R.JAMES,C.KLEANTHOUS REMARK 1 TITL SPECIFICITY IN PROTEIN-PROTEIN INTERACTIONS: THE STRUCTURAL REMARK 1 TITL 2 BASIS FOR DUAL RECOGNITION IN ENDONUCLEASE COLICIN-IMMUNITY REMARK 1 TITL 3 PROTEIN COMPLEXES REMARK 1 REF J.MOL.BIOL. V. 301 1163 2000 REMARK 1 REFN ISSN 0022-2836 REMARK 1 DOI 10.1006/JMBI.2000.3945 REMARK 2 REMARK 2 RESOLUTION. 1.60 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) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 3.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 83.5 REMARK 3 NUMBER OF REFLECTIONS : 23013 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.205 REMARK 3 FREE R VALUE : 0.232 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1178 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1689 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 171 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1FR2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-SEP-00. REMARK 100 THE DEPOSITION ID IS D_1000011840. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-DEC-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.3 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.93 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 26832 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.4 REMARK 200 DATA REDUNDANCY : 4.960 REMARK 200 R MERGE (I) : 0.07800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 12.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.66 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.9 REMARK 200 DATA REDUNDANCY IN SHELL : 2.35 REMARK 200 R MERGE FOR SHELL (I) : 0.19500 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: NULL REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.12 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.05 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 24% PEG 4000, 0.1M SODIUM ACETATE, , REMARK 280 PH 5.3, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 277K 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 22.52500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 43.56000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 25.82000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 43.56000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 22.52500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 25.82000 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A HETERODIMERIC COMPLEX OF THE REMARK 300 E9 DNASE DOMAIN WITH THE IMMUNITY PROTEIN IM9 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: 1900 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11040 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -53.0 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 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 GLU A 2 REMARK 465 GLY A 86 REMARK 465 MET B 1 REMARK 465 GLY B 133 REMARK 465 LYS B 134 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 ASP B 29 -124.07 49.15 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 B 301 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 102 ND1 REMARK 620 2 HIS B 127 NE2 103.1 REMARK 620 3 HIS B 131 NE2 106.1 101.7 REMARK 620 4 PO4 B 403 O3 105.0 115.7 123.3 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 PO4 B 403 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 301 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1BXI RELATED DB: PDB REMARK 900 1BXI IS E9 DNASE/IM9 COMPLEX REMARK 900 RELATED ID: 1EMV RELATED DB: PDB REMARK 900 1EMV IS METAL FREE E9 DNASE/IM9 COMPLEX DBREF 1FR2 A 1 86 UNP P13479 IMM9_ECOLI 1 86 DBREF 1FR2 B 2 134 UNP P09883 CEA9_ECOLI 450 582 SEQADV 1FR2 ALA A 41 UNP P13479 GLU 41 ENGINEERED MUTATION SEQADV 1FR2 MET B 1 UNP P09883 CLONING ARTIFACT SEQRES 1 A 86 MET GLU LEU LYS HIS SER ILE SER ASP TYR THR GLU ALA SEQRES 2 A 86 GLU PHE LEU GLN LEU VAL THR THR ILE CYS ASN ALA ASP SEQRES 3 A 86 THR SER SER GLU GLU GLU LEU VAL LYS LEU VAL THR HIS SEQRES 4 A 86 PHE ALA GLU MET THR GLU HIS PRO SER GLY SER ASP LEU SEQRES 5 A 86 ILE TYR TYR PRO LYS GLU GLY ASP ASP ASP SER PRO SER SEQRES 6 A 86 GLY ILE VAL ASN THR VAL LYS GLN TRP ARG ALA ALA ASN SEQRES 7 A 86 GLY LYS SER GLY PHE LYS GLN GLY SEQRES 1 B 134 MET GLU SER LYS ARG ASN LYS PRO GLY LYS ALA THR GLY SEQRES 2 B 134 LYS GLY LYS PRO VAL GLY ASP LYS TRP LEU ASP ASP ALA SEQRES 3 B 134 GLY LYS ASP SER GLY ALA PRO ILE PRO ASP ARG ILE ALA SEQRES 4 B 134 ASP LYS LEU ARG ASP LYS GLU PHE LYS SER PHE ASP ASP SEQRES 5 B 134 PHE ARG LYS ALA VAL TRP GLU GLU VAL SER LYS ASP PRO SEQRES 6 B 134 GLU LEU SER LYS ASN LEU ASN PRO SER ASN LYS SER SER SEQRES 7 B 134 VAL SER LYS GLY TYR SER PRO PHE THR PRO LYS ASN GLN SEQRES 8 B 134 GLN VAL GLY GLY ARG LYS VAL TYR GLU LEU HIS HIS ASP SEQRES 9 B 134 LYS PRO ILE SER GLN GLY GLY GLU VAL TYR ASP MET ASP SEQRES 10 B 134 ASN ILE ARG VAL THR THR PRO LYS ARG HIS ILE ASP ILE SEQRES 11 B 134 HIS ARG GLY LYS HET PO4 B 403 5 HET ZN B 301 1 HETNAM PO4 PHOSPHATE ION HETNAM ZN ZINC ION FORMUL 3 PO4 O4 P 3- FORMUL 4 ZN ZN 2+ FORMUL 5 HOH *171(H2 O) HELIX 1 1 SER A 6 TYR A 10 5 5 HELIX 2 2 THR A 11 ASN A 24 1 14 HELIX 3 3 SER A 29 GLU A 45 1 17 HELIX 4 4 SER A 50 TYR A 55 1 6 HELIX 5 5 SER A 63 ASN A 78 1 16 HELIX 6 6 SER B 3 LYS B 7 5 5 HELIX 7 7 LYS B 21 ALA B 26 1 6 HELIX 8 8 PRO B 35 ARG B 43 1 9 HELIX 9 9 SER B 49 ASP B 64 1 16 HELIX 10 10 ASP B 64 LYS B 69 1 6 HELIX 11 11 ASN B 72 LYS B 81 1 10 HELIX 12 12 PRO B 88 GLN B 92 5 5 HELIX 13 13 PRO B 106 GLY B 110 5 5 HELIX 14 14 THR B 123 ARG B 132 1 10 SHEET 1 A 2 GLY B 9 LYS B 10 0 SHEET 2 A 2 GLU B 46 PHE B 47 -1 N PHE B 47 O GLY B 9 SHEET 1 B 3 ALA B 32 PRO B 33 0 SHEET 2 B 3 ILE B 119 THR B 122 -1 N VAL B 121 O ALA B 32 SHEET 3 B 3 GLU B 100 HIS B 103 -1 N GLU B 100 O THR B 122 LINK ND1 HIS B 102 ZN ZN B 301 1555 1555 2.00 LINK NE2 HIS B 127 ZN ZN B 301 1555 1555 2.05 LINK NE2 HIS B 131 ZN ZN B 301 1555 1555 2.05 LINK ZN ZN B 301 O3 PO4 B 403 1555 1555 1.87 SITE 1 AC1 9 SER A 28 ARG B 5 LEU B 101 HIS B 102 SITE 2 AC1 9 HIS B 103 HIS B 127 HIS B 131 ZN B 301 SITE 3 AC1 9 HOH B 450 SITE 1 AC2 4 HIS B 102 HIS B 127 HIS B 131 PO4 B 403 CRYST1 45.050 51.640 87.120 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 0.022198 0.000000 0.000000 0.00000 SCALE2 0.000000 0.019365 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011478 0.00000