PDB Short entry for 1A3V HEADER NUCLEASE 24-JAN-98 1A3V TITLE STAPHYLOCOCCAL NUCLEASE, CYCLOPENTANE THIOL DISULFIDE TO V23C VARIANT 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 SOLE COMPND 8 CYSTEINE RESIDUE, PDTP, 3',5'-THYMIDINE DIPHOSPHATE 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 1A3V 1 REMARK SEQADV LINK REVDAT 3 14-MAR-18 1A3V 1 SEQADV REVDAT 2 24-FEB-09 1A3V 1 VERSN REVDAT 1 29-APR-98 1A3V 0 JRNL AUTH R.WYNN,P.C.HARKINS,F.M.RICHARDS,R.O.FOX JRNL TITL COMPARISON OF STRAIGHT CHAIN AND CYCLIC UNNATURAL AMINO JRNL TITL 2 ACIDS EMBEDDED IN THE CORE OF STAPHYLOCOCCAL NUCLEASE. JRNL REF PROTEIN SCI. V. 6 1621 1997 JRNL REFN ISSN 0961-8368 JRNL PMID 9260275 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH R.WYNN,P.C.HARKINS,F.M.RICHARDS,R.O.FOX REMARK 1 TITL MOBILE UNNATURAL AMINO ACID SIDE CHAINS IN THE CORE OF REMARK 1 TITL 2 STAPHYLOCOCCAL NUCLEASE REMARK 1 REF PROTEIN SCI. V. 5 1026 1996 REMARK 1 REFN ISSN 0961-8368 REMARK 1 REFERENCE 2 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 2 REMARK 2 RESOLUTION. 2.20 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) : 2.20 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 : 5789 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 : 1087 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 26 REMARK 3 SOLVENT ATOMS : 34 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 1A3V 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_1000170359. 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 : 9282 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 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 (%) : 82.5 REMARK 200 DATA REDUNDANCY : 5.800 REMARK 200 R MERGE (I) : 0.06200 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.30 REMARK 200 COMPLETENESS FOR SHELL (%) : 74.3 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 <I/SIGMA(I)> 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 (%): 43.19 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.17 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 31.60000 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 15.80000 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 47.40000 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 H3 THP A 151 H2 HOH A 212 1.14 REMARK 500 HH TYR A 113 H2 HOH A 216 1.26 REMARK 500 H ASP A 77 H2 HOH A 201 1.27 REMARK 500 HD21 ASN A 138 H2 HOH A 246 1.30 REMARK 500 HE1 TRP A 140 H2 HOH A 203 1.33 REMARK 500 H LEU A 38 H2 HOH A 202 1.34 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 MET A 26 SD MET A 26 CE 0.803 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 26 CB - CG - SD ANGL. DEV. = 18.6 DEGREES REMARK 500 MET A 26 CG - SD - CE ANGL. DEV. = 23.4 DEGREES REMARK 500 LEU A 125 CB - CG - CD1 ANGL. DEV. = -19.1 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 LEU A 38 18.53 57.00 REMARK 500 LYS A 45 -74.73 -108.65 REMARK 500 LYS A 49 -42.55 -173.36 REMARK 500 TYR A 54 -2.64 76.60 REMARK 500 ASN A 119 30.40 -147.92 REMARK 500 ASN A 138 -102.65 35.09 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 40 OD1 96.1 REMARK 620 3 THR A 41 O 90.8 49.8 REMARK 620 4 THP A 151 O4P 120.4 116.1 148.4 REMARK 620 5 HOH A 210 O 77.9 173.4 132.4 65.5 REMARK 620 N 1 2 3 4 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 1A3V A 1 149 UNP P00644 NUC_STAAU 83 231 SEQADV 1A3V C5C 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 C5C 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 1A3V C5C A 23 CYS S-CYCLOPENTYL THIOCYSTEINE HET C5C A 23 13 HET CA A 150 1 HET THP A 151 26 HETNAM C5C S-CYCLOPENTYL THIOCYSTEINE HETNAM CA CALCIUM ION HETNAM THP THYMIDINE-3',5'-DIPHOSPHATE FORMUL 1 C5C C8 H15 N O2 S2 FORMUL 2 CA CA 2+ FORMUL 3 THP C10 H16 N2 O11 P2 FORMUL 4 HOH *34(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 LINK C THR A 22 N C5C A 23 1555 1555 1.33 LINK C C5C A 23 N LYS A 24 1555 1555 1.33 LINK OD2 ASP A 21 CA CA A 150 1555 1555 2.69 LINK OD1 ASP A 40 CA CA A 150 1555 1555 3.23 LINK O THR A 41 CA CA A 150 1555 1555 2.91 LINK CA CA A 150 O4P THP A 151 1555 1555 3.19 LINK CA CA A 150 O HOH A 210 1555 3655 2.51 CISPEP 1 LYS A 116 PRO A 117 0 0.04 SITE 1 AC1 5 ASP A 21 ASP A 40 THR A 41 THP A 151 SITE 2 AC1 5 HOH A 210 SITE 1 AC2 12 ARG A 35 LEU A 36 LYS A 71 LYS A 84 SITE 2 AC2 12 TYR A 85 ARG A 87 TYR A 113 TYR A 115 SITE 3 AC2 12 CA A 150 HOH A 202 HOH A 210 HOH A 212 CRYST1 48.200 48.200 63.200 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 0.020747 0.000000 0.000000 0.00000 SCALE2 0.000000 0.020747 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015823 0.00000