HEADER TOXIN 11-DEC-96 4TSS TITLE TOXIC SHOCK SYNDROME TOXIN-1: TETRAGONAL P4(1)2(1)2 CRYSTAL FORM COMPND MOL_ID: 1; COMPND 2 MOLECULE: TOXIC SHOCK SYNDROME TOXIN-1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TSST-1 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS; SOURCE 3 ORGANISM_TAXID: 1280; SOURCE 4 STRAIN: MN 8; SOURCE 5 CELLULAR_LOCATION: SECRETED; SOURCE 6 OTHER_DETAILS: PURCHASED FROM TOXIN TECHNOLOGIES KEYWDS TOXIN, SUPERANTIGEN EXPDTA X-RAY DIFFRACTION AUTHOR G.S.PRASAD,R.RADHAKRISHNAN,D.T.MITCHELL,C.A.EARHART,M.M.DINGES, AUTHOR 2 W.J.COOK,P.M.SCHLIVERT,D.H.OHLENDORF REVDAT 3 09-AUG-23 4TSS 1 REMARK LINK REVDAT 2 24-FEB-09 4TSS 1 VERSN REVDAT 1 24-DEC-97 4TSS 0 JRNL AUTH G.S.PRASAD,R.RADHAKRISHNAN,D.T.MITCHELL,C.A.EARHART, JRNL AUTH 2 M.M.DINGES,W.J.COOK,P.M.SCHLIEVERT,D.H.OHLENDORF JRNL TITL REFINED STRUCTURES OF THREE CRYSTAL FORMS OF TOXIC SHOCK JRNL TITL 2 SYNDROME TOXIN-1 AND OF A TETRAMUTANT WITH REDUCED ACTIVITY. JRNL REF PROTEIN SCI. V. 6 1220 1997 JRNL REFN ISSN 0961-8368 JRNL PMID 9194182 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH G.S.PRASAD,C.A.EARHART,D.L.MURRAY,R.P.NOVICK,P.M.SCHLIEVERT, REMARK 1 AUTH 2 D.H.OHLENDORF REMARK 1 TITL STRUCTURE OF TOXIC SHOCK SYNDROME TOXIN 1 REMARK 1 REF BIOCHEMISTRY V. 32 13761 1993 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 2.75 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.75 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 5.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 100000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.1000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 72.5 REMARK 3 NUMBER OF REFLECTIONS : 11409 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.191 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.75 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.79 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 38.20 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 112 REMARK 3 BIN R VALUE (WORKING SET) : 0.2570 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 : 1559 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 22.80 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) : 0.30 REMARK 3 ESD FROM SIGMAA (A) : NULL 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) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.015 REMARK 3 BOND ANGLES (DEGREES) : 2.096 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.750 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) : 2.910 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 4.480 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 4.100 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.620 ; 2.500 REMARK 3 REMARK 3 NCS MODEL : UNRESTRAINED 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : PARAM11.WAT REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH11.WAT REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4TSS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000179440. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JAN-94 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 6.0 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MSC REMARK 200 DATA SCALING SOFTWARE : MSC REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6274 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.180 REMARK 200 RESOLUTION RANGE LOW (A) : 45.800 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 50.0 REMARK 200 DATA REDUNDANCY : 3.150 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.06750 REMARK 200 FOR THE DATA SET : 6.4500 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.75 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 3.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 50.0 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR 3.1 REMARK 200 STARTING MODEL: PDB ENTRY 1TSS REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.62 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 14% PEG 8000, 0.2 M ZN ACETATE, 0.1 M REMARK 280 NA CACODYLATE, PH 6, PH 6.0 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 102.90000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 23.65000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 51.45000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 23.65000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 154.35000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 23.65000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 51.45000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 23.65000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 23.65000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 154.35000 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 102.90000 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 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 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 PRO A 117 C - N - CA ANGL. DEV. = 15.2 DEGREES REMARK 500 PRO A 117 C - N - CD ANGL. DEV. = -13.0 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 THR A 2 -159.72 -105.46 REMARK 500 SER A 15 -144.51 -54.23 REMARK 500 THR A 19 86.31 -158.68 REMARK 500 ASN A 22 41.82 32.06 REMARK 500 ASP A 27 146.51 161.20 REMARK 500 ASP A 39 32.82 -74.18 REMARK 500 PRO A 48 -81.66 -52.36 REMARK 500 SER A 49 123.61 -35.23 REMARK 500 TYR A 52 79.53 -101.14 REMARK 500 ALA A 55 67.07 -115.34 REMARK 500 ASN A 65 33.41 -161.13 REMARK 500 GLU A 77 -3.04 -148.65 REMARK 500 SER A 86 165.57 43.81 REMARK 500 THR A 91 31.66 -78.81 REMARK 500 PRO A 97 149.47 -36.74 REMARK 500 HIS A 107 42.01 35.21 REMARK 500 PRO A 117 168.43 -25.43 REMARK 500 LYS A 122 -61.75 -94.77 REMARK 500 GLU A 132 -70.65 -54.04 REMARK 500 GLN A 139 -82.44 -94.95 REMARK 500 TYR A 144 15.94 51.60 REMARK 500 LYS A 149 73.56 -118.22 REMARK 500 ASN A 159 28.10 -73.72 REMARK 500 ASP A 160 55.41 -168.52 REMARK 500 SER A 169 -7.42 -58.23 REMARK 500 ASN A 175 8.72 -65.31 REMARK 500 THR A 176 15.31 -145.20 REMARK 500 PRO A 179 150.50 -48.58 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 TYR A 13 0.08 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: ZN REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: ZINC BINDING SITE BETWEEN ADJACENT MOLECULES. REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 206 DBREF 4TSS A 1 194 UNP P06886 TSST_STAAU 41 234 SEQRES 1 A 194 SER THR ASN ASP ASN ILE LYS ASP LEU LEU ASP TRP TYR SEQRES 2 A 194 SER SER GLY SER ASP THR PHE THR ASN SER GLU VAL LEU SEQRES 3 A 194 ASP ASN SER LEU GLY SER MET ARG ILE LYS ASN THR ASP SEQRES 4 A 194 GLY SER ILE SER LEU ILE ILE PHE PRO SER PRO TYR TYR SEQRES 5 A 194 SER PRO ALA PHE THR LYS GLY GLU LYS VAL ASP LEU ASN SEQRES 6 A 194 THR LYS ARG THR LYS LYS SER GLN HIS THR SER GLU GLY SEQRES 7 A 194 THR TYR ILE HIS PHE GLN ILE SER GLY VAL THR ASN THR SEQRES 8 A 194 GLU LYS LEU PRO THR PRO ILE GLU LEU PRO LEU LYS VAL SEQRES 9 A 194 LYS VAL HIS GLY LYS ASP SER PRO LEU LYS TYR TRP PRO SEQRES 10 A 194 LYS PHE ASP LYS LYS GLN LEU ALA ILE SER THR LEU ASP SEQRES 11 A 194 PHE GLU ILE ARG HIS GLN LEU THR GLN ILE HIS GLY LEU SEQRES 12 A 194 TYR ARG SER SER ASP LYS THR GLY GLY TYR TRP LYS ILE SEQRES 13 A 194 THR MET ASN ASP GLY SER THR TYR GLN SER ASP LEU SER SEQRES 14 A 194 LYS LYS PHE GLU TYR ASN THR GLU LYS PRO PRO ILE ASN SEQRES 15 A 194 ILE ASP GLU ILE LYS THR ILE GLU ALA GLU ILE ASN HET ZN A 206 1 HETNAM ZN ZINC ION FORMUL 2 ZN ZN 2+ HELIX 1 1 ASP A 4 SER A 14 1 11 HELIX 2 2 ILE A 126 GLN A 139 1 14 HELIX 3 3 SER A 147 LYS A 149 5 3 HELIX 4 4 TYR A 174 THR A 176 5 3 HELIX 5 5 ILE A 183 GLU A 185 5 3 SHEET 1 A 3 SER A 32 LYS A 36 0 SHEET 2 A 3 ILE A 42 ILE A 46 -1 N ILE A 45 O MET A 33 SHEET 3 A 3 ILE A 81 ILE A 85 1 N HIS A 82 O ILE A 42 SHEET 1 B 4 VAL A 104 VAL A 106 0 SHEET 2 B 4 ILE A 186 ILE A 193 1 N ALA A 191 O LYS A 105 SHEET 3 B 4 GLY A 152 MET A 158 -1 N THR A 157 O LYS A 187 SHEET 4 B 4 THR A 163 SER A 166 -1 N SER A 166 O TRP A 154 LINK NE2 HIS A 74 ZN ZN A 206 1555 1555 2.07 SITE 1 ZN 2 HIS A 74 HIS A 135 SITE 1 AC1 2 HIS A 74 HIS A 135 CRYST1 47.300 47.300 205.800 90.00 90.00 90.00 P 41 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 0.021142 0.000000 0.000000 0.00000 SCALE2 0.000000 0.021142 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004859 0.00000