HEADER HYDROLASE 23-OCT-14 4WRD TITLE CRYSTAL STRUCTURE OF STAPHYLCOCCAL NULEASE VARIANT DELTA+PHS V66E TITLE 2 L125E AT CRYOGENIC TEMPERATURE COMPND MOL_ID: 1; COMPND 2 MOLECULE: THERMONUCLEASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 80-228; COMPND 5 SYNONYM: TNASE,MICROCOCCAL NUCLEASE,STAPHYLOCOCCAL NUCLEASE; COMPND 6 EC: 3.1.31.1; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS; SOURCE 3 ORGANISM_TAXID: 93062; SOURCE 4 STRAIN: COL; SOURCE 5 GENE: NUC, SACOL0860; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET24A+ KEYWDS NUCLEASE, PDTP, PH-SENSITIVE SWITCH, HYDROLASE, INTERNAL IONIZABLE KEYWDS 2 GROUPS EXPDTA X-RAY DIFFRACTION AUTHOR P.C.BELL-UPP,J.L.SCHLESSMAN,B.GARCIA-MORENO E. REVDAT 5 27-SEP-23 4WRD 1 REMARK REVDAT 4 25-DEC-19 4WRD 1 REMARK REVDAT 3 22-NOV-17 4WRD 1 REMARK REVDAT 2 13-SEP-17 4WRD 1 SOURCE REMARK REVDAT 1 08-JUL-15 4WRD 0 JRNL AUTH P.C.BELL-UPP,J.L.SCHLESSMAN,B.GARCIA-MORENO E. JRNL TITL CRYSTAL STRUCTURE OF STAPHYLCOCCAL NULEASE VARIANT DELTA+PHS JRNL TITL 2 V66E L125E AT CRYOGENIC TEMPERATURE JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.65 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0049 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.65 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.27 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 16239 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 + TEST SET) : 0.184 REMARK 3 R VALUE (WORKING SET) : 0.182 REMARK 3 FREE R VALUE : 0.220 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 864 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) : 1.65 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.69 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1150 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.70 REMARK 3 BIN R VALUE (WORKING SET) : 0.1900 REMARK 3 BIN FREE R VALUE SET COUNT : 66 REMARK 3 BIN FREE R VALUE : 0.2680 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1036 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 26 REMARK 3 SOLVENT ATOMS : 94 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 20.71 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.02000 REMARK 3 B22 (A**2) : -1.06000 REMARK 3 B33 (A**2) : 1.98000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.53000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.099 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.100 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.067 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.944 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.959 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.945 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1136 ; 0.017 ; 0.020 REMARK 3 BOND LENGTHS OTHERS (A): 1123 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1541 ; 1.620 ; 2.003 REMARK 3 BOND ANGLES OTHERS (DEGREES): 2611 ; 0.741 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 146 ; 6.587 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 52 ;33.449 ;25.385 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 229 ;12.889 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 5 ;10.214 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 165 ; 0.103 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1262 ; 0.011 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 243 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 533 ; 1.987 ; 1.784 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 532 ; 1.950 ; 1.779 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 669 ; 2.752 ; 2.674 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS U VALUES : REFINED INDIVIDUALLY REMARK 4 REMARK 4 4WRD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-OCT-14. REMARK 100 THE DEPOSITION ID IS D_1000204378. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-AUG-14 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : SEALED TUBE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : OTHER REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : GE(111) REMARK 200 OPTICS : MULTI-LAYER OPTICS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : APEX II CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SAINT 2013/3 FOR WINDOWS REMARK 200 DATA SCALING SOFTWARE : SAINT REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 17155 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.650 REMARK 200 RESOLUTION RANGE LOW (A) : 38.270 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 27.81 REMARK 200 R MERGE (I) : 0.01000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 142.6800 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.65 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.67 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.6 REMARK 200 DATA REDUNDANCY IN SHELL : 8.71 REMARK 200 R MERGE FOR SHELL (I) : 0.13980 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 6.630 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER 2.5.5 REMARK 200 STARTING MODEL: 3BDC REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.59 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.22 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% MPD, 25MM POTASSIUM PHOSPHATE, REMARK 280 CALCIUM CHLORIDE, PDTP, PH 6, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 30.15750 REMARK 290 SMTRY3 2 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: BIOLOGICAL UNIT IS A MONOMER. 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 830 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 6940 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.0 KCAL/MOL 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: 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 ILE A 18 -71.21 -122.52 REMARK 500 ASP A 19 -156.26 -150.57 REMARK 500 TYR A 54 -0.03 68.22 REMARK 500 ASN A 138 -107.27 53.23 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 201 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 21 OD2 REMARK 620 2 ASP A 40 OD1 77.0 REMARK 620 3 THR A 41 O 86.0 79.4 REMARK 620 4 GLU A 43 OE2 149.2 132.1 106.8 REMARK 620 5 THP A 202 O5P 89.6 68.0 147.3 93.3 REMARK 620 6 HOH A 342 O 74.8 132.9 134.2 76.4 74.8 REMARK 620 7 HOH A 352 O 80.2 137.1 63.1 81.1 147.6 72.8 REMARK 620 8 HOH A 359 O 121.0 57.9 52.4 87.8 104.5 164.1 107.2 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 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue THP A 202 DBREF 4WRD A 1 149 UNP Q5HHM4 NUC_STAAC 80 228 SEQADV 4WRD A UNP Q5HHM4 THR 123 DELETION SEQADV 4WRD A UNP Q5HHM4 LYS 124 DELETION SEQADV 4WRD A UNP Q5HHM4 HIS 125 DELETION SEQADV 4WRD A UNP Q5HHM4 PRO 126 DELETION SEQADV 4WRD A UNP Q5HHM4 LYS 127 DELETION SEQADV 4WRD A UNP Q5HHM4 LYS 128 DELETION SEQADV 4WRD PHE A 50 UNP Q5HHM4 GLY 129 ENGINEERED MUTATION SEQADV 4WRD ASN A 51 UNP Q5HHM4 VAL 130 ENGINEERED MUTATION SEQADV 4WRD GLU A 66 UNP Q5HHM4 VAL 145 ENGINEERED MUTATION SEQADV 4WRD GLY A 117 UNP Q5HHM4 PRO 196 ENGINEERED MUTATION SEQADV 4WRD GLU A 125 UNP Q5HHM4 LEU 204 ENGINEERED MUTATION SEQADV 4WRD ALA A 128 UNP Q5HHM4 SER 207 ENGINEERED MUTATION SEQRES 1 A 143 ALA THR SER THR LYS LYS LEU HIS LYS GLU PRO ALA THR SEQRES 2 A 143 LEU ILE LYS ALA ILE ASP GLY ASP THR VAL LYS LEU MET SEQRES 3 A 143 TYR LYS GLY GLN PRO MET THR PHE ARG LEU LEU LEU VAL SEQRES 4 A 143 ASP THR PRO GLU PHE ASN GLU LYS TYR GLY PRO GLU ALA SEQRES 5 A 143 SER ALA PHE THR LYS LYS MET GLU GLU ASN ALA LYS LYS SEQRES 6 A 143 ILE GLU VAL GLU PHE ASP LYS GLY GLN ARG THR ASP LYS SEQRES 7 A 143 TYR GLY ARG GLY LEU ALA TYR ILE TYR ALA ASP GLY LYS SEQRES 8 A 143 MET VAL ASN GLU ALA LEU VAL ARG GLN GLY LEU ALA LYS SEQRES 9 A 143 VAL ALA TYR VAL TYR LYS GLY ASN ASN THR HIS GLU GLN SEQRES 10 A 143 LEU GLU ARG LYS ALA GLU ALA GLN ALA LYS LYS GLU LYS SEQRES 11 A 143 LEU ASN ILE TRP SER GLU ASP ASN ALA ASP SER GLY GLN HET CA A 201 1 HET THP A 202 25 HETNAM CA CALCIUM ION HETNAM THP THYMIDINE-3',5'-DIPHOSPHATE FORMUL 2 CA CA 2+ FORMUL 3 THP C10 H16 N2 O11 P2 FORMUL 4 HOH *94(H2 O) HELIX 1 AA1 TYR A 54 ALA A 69 1 16 HELIX 2 AA2 VAL A 99 GLN A 106 1 8 HELIX 3 AA3 HIS A 121 GLU A 135 1 15 HELIX 4 AA4 LEU A 137 SER A 141 5 5 SHEET 1 AA1 7 LYS A 97 MET A 98 0 SHEET 2 AA1 7 GLY A 88 ALA A 94 -1 N ALA A 94 O LYS A 97 SHEET 3 AA1 7 ILE A 72 GLU A 75 -1 N GLU A 73 O TYR A 93 SHEET 4 AA1 7 LYS A 9 ALA A 17 -1 N GLU A 10 O VAL A 74 SHEET 5 AA1 7 THR A 22 TYR A 27 -1 O MET A 26 N THR A 13 SHEET 6 AA1 7 GLN A 30 LEU A 36 -1 O PHE A 34 N VAL A 23 SHEET 7 AA1 7 GLY A 88 ALA A 94 1 O GLY A 88 N ARG A 35 SHEET 1 AA2 2 VAL A 39 ASP A 40 0 SHEET 2 AA2 2 LYS A 110 VAL A 111 -1 O LYS A 110 N ASP A 40 LINK OD2 ASP A 21 CA CA A 201 1555 1555 2.92 LINK OD1 ASP A 40 CA CA A 201 1555 1555 2.70 LINK O THR A 41 CA CA A 201 1555 1555 2.85 LINK OE2 GLU A 43 CA CA A 201 1555 1555 2.85 LINK CA CA A 201 O5P THP A 202 1555 1555 3.17 LINK CA CA A 201 O HOH A 342 1555 1555 2.76 LINK CA CA A 201 O HOH A 352 1555 1555 2.98 LINK CA CA A 201 O HOH A 359 1555 1555 2.36 SITE 1 AC1 8 ASP A 21 ASP A 40 THR A 41 GLU A 43 SITE 2 AC1 8 THP A 202 HOH A 342 HOH A 352 HOH A 359 SITE 1 AC2 23 ARG A 35 ASP A 40 LYS A 84 TYR A 85 SITE 2 AC2 23 ARG A 87 LEU A 89 TYR A 113 TYR A 115 SITE 3 AC2 23 LYS A 127 CA A 201 HOH A 302 HOH A 304 SITE 4 AC2 23 HOH A 306 HOH A 309 HOH A 311 HOH A 316 SITE 5 AC2 23 HOH A 318 HOH A 325 HOH A 341 HOH A 342 SITE 6 AC2 23 HOH A 349 HOH A 365 HOH A 391 CRYST1 31.140 60.315 38.364 90.00 94.05 90.00 P 1 21 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 0.032113 0.000000 0.002276 0.00000 SCALE2 0.000000 0.016580 0.000000 0.00000 SCALE3 0.000000 0.000000 0.026131 0.00000