HEADER NUCLEASE 11-JAN-98 1A2U TITLE STAPHYLOCOCCAL NUCLEASE, V23C VARIANT, COMPLEX WITH 1-N-BUTANE THIOL TITLE 2 AND 3',5'-THYMIDINE DIPHOSPHATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: STAPHYLOCOCCAL NUCLEASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.1.31.1; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES; COMPND 7 OTHER_DETAILS: VARIANT FORMED BY CHEMICAL MODIFICATION OF THE SOLE COMPND 8 CYSTEINE RESIDUE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS; SOURCE 3 ORGANISM_TAXID: 1280; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: AR120; SOURCE 7 EXPRESSION_SYSTEM_VECTOR: PAS1 KEYWDS NUCLEASE, UNNATURAL AMINO ACID, HYDROLASE, ENDONUCLEASE EXPDTA X-RAY DIFFRACTION AUTHOR R.WYNN,P.C.HARKINS,F.M.RICHARDS,R.O.FOX REVDAT 4 02-AUG-23 1A2U 1 REMARK SEQADV LINK REVDAT 3 14-MAR-18 1A2U 1 SEQADV REVDAT 2 24-FEB-09 1A2U 1 VERSN REVDAT 1 29-APR-98 1A2U 0 JRNL AUTH R.WYNN,P.C.HARKINS,F.M.RICHARDS,R.O.FOX JRNL TITL MOBILE UNNATURAL AMINO ACID SIDE CHAINS IN THE CORE OF JRNL TITL 2 STAPHYLOCOCCAL NUCLEASE. JRNL REF PROTEIN SCI. V. 5 1026 1996 JRNL REFN ISSN 0961-8368 JRNL PMID 8762134 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH R.WYNN,C.L.ANDERSON,F.M.RICHARDS,R.O.FOX REMARK 1 TITL INTERACTIONS IN NONNATIVE AND TRUNCATED FORMS OF REMARK 1 TITL 2 STAPHYLOCOCCAL NUCLEASE AS INDICATED BY MUTATIONAL FREE REMARK 1 TITL 3 ENERGY CHANGES REMARK 1 REF PROTEIN SCI. V. 4 1815 1995 REMARK 1 REFN ISSN 0961-8368 REMARK 1 REFERENCE 2 REMARK 1 AUTH R.WYNN,F.M.RICHARDS REMARK 1 TITL UNNATURAL AMINO ACID PACKING MUTANTS OF ESCHERICHIA COLI REMARK 1 TITL 2 THIOREDOXIN PRODUCED BY COMBINED MUTAGENESIS/CHEMICAL REMARK 1 TITL 3 MODIFICATION TECHNIQUES REMARK 1 REF PROTEIN SCI. V. 2 395 1993 REMARK 1 REFN ISSN 0961-8368 REMARK 2 REMARK 2 RESOLUTION. 2.00 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) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 8454 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) : 0.174 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 : 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 : 1086 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 26 REMARK 3 SOLVENT ATOMS : 42 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) : 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) : NULL REMARK 3 BOND ANGLES (DEGREES) : NULL 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 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 : PARAM19X.PRO REMARK 3 PARAMETER FILE 2 : PARAM11.DNA REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPH19X.PRO REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1A2U 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_1000170322. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JAN-96 REMARK 200 TEMPERATURE (KELVIN) : 278.15 REMARK 200 PH : 8.15 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 : COLLIMATOR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MACSCIENCE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 8454 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 6.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 91.1 REMARK 200 DATA REDUNDANCY : 5.700 REMARK 200 R MERGE (I) : 0.05900 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) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.09 REMARK 200 COMPLETENESS FOR SHELL (%) : 75.4 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 1SNC REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.84 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.19 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10 MM POTASSIUM PHOSPHATE, PH 8.15 REMARK 280 PROTEIN CONCENTRATION = 2 MGS/ML MPD =21% T=4 DEGREES C, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 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,X,Z+1/4 REMARK 290 4555 Y,-X,Z+3/4 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 31.55000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 15.77500 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 47.32500 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 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 THR A 2 REMARK 465 SER A 3 REMARK 465 THR A 4 REMARK 465 LYS A 5 REMARK 465 LYS A 6 REMARK 465 GLU A 142 REMARK 465 ASP A 143 REMARK 465 ASN A 144 REMARK 465 ALA A 145 REMARK 465 ASP A 146 REMARK 465 SER A 147 REMARK 465 GLY A 148 REMARK 465 GLN A 149 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 HZ3 LYS A 78 HG1 THR A 120 1.26 REMARK 500 H2 HOH A 202 O HOH A 205 1.57 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 ASP A 19 -159.94 -151.38 REMARK 500 LEU A 38 14.51 53.55 REMARK 500 LYS A 45 -89.83 -112.58 REMARK 500 HIS A 46 118.10 -31.74 REMARK 500 TYR A 54 -2.86 79.22 REMARK 500 ASN A 119 24.40 -143.40 REMARK 500 ASN A 138 -105.39 36.82 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 CA A 150 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 21 OD2 REMARK 620 2 ASP A 21 OD1 40.2 REMARK 620 3 ASP A 40 OD1 86.0 124.4 REMARK 620 4 THR A 41 O 95.3 111.4 80.0 REMARK 620 5 THP A 151 O4P 95.4 97.5 68.7 146.0 REMARK 620 6 HOH A 212 O 82.5 47.6 135.5 143.7 69.8 REMARK 620 7 HOH A 217 O 90.5 65.0 148.2 68.8 143.1 74.9 REMARK 620 8 HOH A 243 O 164.7 154.4 78.7 81.3 79.9 109.1 102.0 REMARK 620 N 1 2 3 4 5 6 7 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 150 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THP A 151 DBREF 1A2U A 1 149 UNP P00644 NUC_STAAU 83 231 SEQADV 1A2U BUC A 23 UNP P00644 VAL 105 ENGINEERED MUTATION SEQRES 1 A 149 ALA THR SER THR LYS LYS LEU HIS LYS GLU PRO ALA THR SEQRES 2 A 149 LEU ILE LYS ALA ILE ASP GLY ASP THR BUC LYS LEU MET SEQRES 3 A 149 TYR LYS GLY GLN PRO MET THR PHE ARG LEU LEU LEU VAL SEQRES 4 A 149 ASP THR PRO GLU THR LYS HIS PRO LYS LYS GLY VAL GLU SEQRES 5 A 149 LYS TYR GLY PRO GLU ALA SER ALA PHE THR LYS LYS MET SEQRES 6 A 149 VAL GLU ASN ALA LYS LYS ILE GLU VAL GLU PHE ASP LYS SEQRES 7 A 149 GLY GLN ARG THR ASP LYS TYR GLY ARG GLY LEU ALA TYR SEQRES 8 A 149 ILE TYR ALA ASP GLY LYS MET VAL ASN GLU ALA LEU VAL SEQRES 9 A 149 ARG GLN GLY LEU ALA LYS VAL ALA TYR VAL TYR LYS PRO SEQRES 10 A 149 ASN ASN THR HIS GLU GLN HIS LEU ARG LYS SER GLU ALA SEQRES 11 A 149 GLN ALA LYS LYS GLU LYS LEU ASN ILE TRP SER GLU ASP SEQRES 12 A 149 ASN ALA ASP SER GLY GLN MODRES 1A2U BUC A 23 CYS S,S-BUTYLTHIOCYSTEINE HET BUC A 23 12 HET CA A 150 1 HET THP A 151 26 HETNAM BUC S,S-BUTYLTHIOCYSTEINE HETNAM CA CALCIUM ION HETNAM THP THYMIDINE-3',5'-DIPHOSPHATE FORMUL 1 BUC C7 H15 N O2 S2 FORMUL 2 CA CA 2+ FORMUL 3 THP C10 H16 N2 O11 P2 FORMUL 4 HOH *42(H2 O) HELIX 1 1 GLY A 55 GLU A 67 1 13 HELIX 2 2 VAL A 99 ARG A 105 1 7 HELIX 3 3 GLU A 122 LYS A 134 1 13 SHEET 1 A 6 LYS A 9 ALA A 12 0 SHEET 2 A 6 ILE A 72 PHE A 76 -1 N VAL A 74 O GLU A 10 SHEET 3 A 6 GLY A 88 ALA A 94 -1 N TYR A 93 O GLU A 73 SHEET 4 A 6 GLN A 30 LEU A 36 1 N ARG A 35 O GLY A 88 SHEET 5 A 6 THR A 22 TYR A 27 -1 N TYR A 27 O GLN A 30 SHEET 6 A 6 THR A 13 ALA A 17 -1 N LYS A 16 O LYS A 24 SHEET 1 B 2 VAL A 39 THR A 41 0 SHEET 2 B 2 ALA A 109 VAL A 111 -1 N LYS A 110 O ASP A 40 LINK C THR A 22 N BUC A 23 1555 1555 1.33 LINK C BUC A 23 N LYS A 24 1555 1555 1.32 LINK OD2 ASP A 21 CA CA A 150 1555 1555 2.34 LINK OD1 ASP A 21 CA CA A 150 1555 1555 3.38 LINK OD1 ASP A 40 CA CA A 150 1555 1555 2.43 LINK O THR A 41 CA CA A 150 1555 1555 2.66 LINK CA CA A 150 O4P THP A 151 1555 1555 2.66 LINK CA CA A 150 O HOH A 212 1555 1555 2.28 LINK CA CA A 150 O HOH A 217 1555 1555 2.16 LINK CA CA A 150 O HOH A 243 1555 1555 1.53 CISPEP 1 LYS A 116 PRO A 117 0 -0.07 SITE 1 AC1 7 ASP A 21 ASP A 40 THR A 41 THP A 151 SITE 2 AC1 7 HOH A 212 HOH A 217 HOH A 243 SITE 1 AC2 16 ARG A 35 LEU A 36 ASP A 40 LYS A 71 SITE 2 AC2 16 ASP A 83 LYS A 84 TYR A 85 ARG A 87 SITE 3 AC2 16 TYR A 113 TYR A 115 CA A 150 HOH A 202 SITE 4 AC2 16 HOH A 212 HOH A 215 HOH A 216 HOH A 243 CRYST1 48.500 48.500 63.100 90.00 90.00 90.00 P 41 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 0.020619 0.000000 0.000000 0.00000 SCALE2 0.000000 0.020619 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015848 0.00000