HEADER TRANSFERASE 19-MAY-10 2XEY TITLE CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 (CHK1) IN COMPLEX WITH TITLE 2 INHIBITORS COMPND MOL_ID: 1; COMPND 2 MOLECULE: SERINE/THREONINE-PROTEIN KINASE CHK1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: KINASE DOMAIN, RESIDUES 1-289; COMPND 5 SYNONYM: CHECKPOINT KINASE 1, CHEK1, CHK1; COMPND 6 EC: 2.7.11.1; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA; SOURCE 6 EXPRESSION_SYSTEM_COMMON: FALL ARMYWORM; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 7108; SOURCE 8 EXPRESSION_SYSTEM_CELL_LINE: SF9 KEYWDS TRANSFERASE, DNA REPAIR, CELL CYCLE EXPDTA X-RAY DIFFRACTION AUTHOR T.P.MATTHEWS,T.MCHARDY,S.KLAIR,K.BOXALL,M.FISHER,M.CHERRY,C.E.ALLEN, AUTHOR 2 G.J.ADDISON,J.ELLARD,G.W.AHERNE,I.M.WESTWOOD,R.VAN MONTFORT, AUTHOR 3 M.D.GARRETT,J.C.READER,I.COLLINS REVDAT 4 20-DEC-23 2XEY 1 REMARK REVDAT 3 28-JUN-17 2XEY 1 REMARK REVDAT 2 21-JUL-10 2XEY 1 JRNL REVDAT 1 30-JUN-10 2XEY 0 JRNL AUTH T.P.MATTHEWS,T.MCHARDY,S.KLAIR,K.BOXALL,M.FISHER,M.CHERRY, JRNL AUTH 2 C.E.ALLEN,G.J.ADDISON,J.ELLARD,G.W.AHERNE,I.M.WESTWOOD, JRNL AUTH 3 R.V.MONTFORT,M.D.GARRETT,J.C.READER,I.COLLINS JRNL TITL DESIGN AND EVALUATION OF 3,6-DI(HETERO)ARYL JRNL TITL 2 IMIDAZO[1,2-A]PYRAZINES AS INHIBITORS OF CHECKPOINT AND JRNL TITL 3 OTHER KINASES. JRNL REF BIOORG.MED.CHEM.LETT. V. 20 4045 2010 JRNL REFN ISSN 0960-894X JRNL PMID 20561787 JRNL DOI 10.1016/J.BMCL.2010.05.096 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.P.MATTHEWS,S.KLAIR,S.BURNS,K.BOXALL,M.CHERRY,M.FISHER, REMARK 1 AUTH 2 I.M.WESTWOOD,M.I.WALTON,T.MCHARDY,K.J.CHEUNG,R.VAN MONTFORT, REMARK 1 AUTH 3 D.WILLIAMS,G.W.AHERNE,M.D.GARRETT,J.READER,I.COLLINS REMARK 1 TITL IDENTIFICATION OF INHIBITORS OF CHECKPOINT KINASE 1 THROUGH REMARK 1 TITL 2 TEMPLATE SCREENING. REMARK 1 REF J.MED.CHEM. V. 52 4810 2009 REMARK 1 REFN ISSN 0022-2623 REMARK 1 PMID 19572549 REMARK 1 DOI 10.1021/JM900314J REMARK 2 REMARK 2 RESOLUTION. 2.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : MLHL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 43.40 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.380 REMARK 3 COMPLETENESS FOR RANGE (%) : 91.9 REMARK 3 NUMBER OF REFLECTIONS : 8616 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.222 REMARK 3 R VALUE (WORKING SET) : 0.219 REMARK 3 FREE R VALUE : 0.266 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.700 REMARK 3 FREE R VALUE TEST SET COUNT : 406 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 43.4011 - 3.8935 0.88 2668 136 0.2026 0.2516 REMARK 3 2 3.8935 - 3.0906 0.93 2757 121 0.2101 0.2487 REMARK 3 3 3.0906 - 2.7000 0.95 2785 149 0.2530 0.3007 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : 0.38 REMARK 3 B_SOL : 45.79 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.450 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 24.610 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 41.62 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -9.69830 REMARK 3 B22 (A**2) : 0.52970 REMARK 3 B33 (A**2) : 9.16860 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.91630 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.013 2128 REMARK 3 ANGLE : 1.228 2884 REMARK 3 CHIRALITY : 0.106 309 REMARK 3 PLANARITY : 0.012 370 REMARK 3 DIHEDRAL : 17.600 788 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 7 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: (CHAIN A AND RESID 6:13) REMARK 3 ORIGIN FOR THE GROUP (A): 10.1557 -5.0508 33.1263 REMARK 3 T TENSOR REMARK 3 T11: 0.9616 T22: 1.6515 REMARK 3 T33: 0.7015 T12: -0.2898 REMARK 3 T13: 0.2982 T23: 0.0184 REMARK 3 L TENSOR REMARK 3 L11: 0.2870 L22: 1.0873 REMARK 3 L33: 0.0111 L12: 0.2815 REMARK 3 L13: 0.0593 L23: 0.0701 REMARK 3 S TENSOR REMARK 3 S11: -0.6895 S12: -0.0821 S13: 0.0253 REMARK 3 S21: 0.6436 S22: -0.1304 S23: -0.5155 REMARK 3 S31: -0.6901 S32: 0.0170 S33: 0.0111 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: (CHAIN A AND RESID 14:32) REMARK 3 ORIGIN FOR THE GROUP (A): 6.8636 -5.0615 29.3615 REMARK 3 T TENSOR REMARK 3 T11: 0.5328 T22: 0.7430 REMARK 3 T33: 0.5333 T12: -0.0332 REMARK 3 T13: -0.1959 T23: 0.1397 REMARK 3 L TENSOR REMARK 3 L11: 0.2626 L22: 0.0147 REMARK 3 L33: 0.0952 L12: 0.0501 REMARK 3 L13: -0.1299 L23: -0.0385 REMARK 3 S TENSOR REMARK 3 S11: 0.3857 S12: -0.8271 S13: 0.3210 REMARK 3 S21: -0.3823 S22: 0.2314 S23: -0.0989 REMARK 3 S31: -0.1786 S32: 0.0412 S33: 0.0144 REMARK 3 TLS GROUP : 3 REMARK 3 SELECTION: (CHAIN A AND RESID 33:51) REMARK 3 ORIGIN FOR THE GROUP (A): 13.6189 -8.0135 20.9618 REMARK 3 T TENSOR REMARK 3 T11: 0.8781 T22: 1.0394 REMARK 3 T33: 0.1676 T12: 0.2446 REMARK 3 T13: -0.1698 T23: -0.0017 REMARK 3 L TENSOR REMARK 3 L11: 0.2395 L22: 0.1776 REMARK 3 L33: 0.1121 L12: 0.1445 REMARK 3 L13: 0.1079 L23: -0.0110 REMARK 3 S TENSOR REMARK 3 S11: 0.1447 S12: -0.1332 S13: -0.0634 REMARK 3 S21: 0.7726 S22: 0.0007 S23: -0.4162 REMARK 3 S31: 0.2099 S32: 0.4635 S33: 0.0608 REMARK 3 TLS GROUP : 4 REMARK 3 SELECTION: (CHAIN A AND RESID 52:97) REMARK 3 ORIGIN FOR THE GROUP (A): 11.7661 -1.9672 17.6168 REMARK 3 T TENSOR REMARK 3 T11: 0.3298 T22: 0.5395 REMARK 3 T33: 0.1350 T12: 0.1350 REMARK 3 T13: -0.0914 T23: 0.0574 REMARK 3 L TENSOR REMARK 3 L11: 2.0871 L22: 1.6303 REMARK 3 L33: 0.7736 L12: -0.7639 REMARK 3 L13: -0.0316 L23: 0.0914 REMARK 3 S TENSOR REMARK 3 S11: -0.4743 S12: -1.3518 S13: -0.2188 REMARK 3 S21: 0.8295 S22: 0.4488 S23: -0.2808 REMARK 3 S31: -0.0178 S32: 0.1965 S33: 0.1619 REMARK 3 TLS GROUP : 5 REMARK 3 SELECTION: (CHAIN A AND RESID 98:160) REMARK 3 ORIGIN FOR THE GROUP (A): 6.1275 3.6467 6.8528 REMARK 3 T TENSOR REMARK 3 T11: 0.1484 T22: 0.1077 REMARK 3 T33: 0.1565 T12: 0.0470 REMARK 3 T13: -0.0130 T23: -0.0101 REMARK 3 L TENSOR REMARK 3 L11: 1.8232 L22: 0.9460 REMARK 3 L33: 0.2052 L12: -0.1370 REMARK 3 L13: -0.0006 L23: 0.0413 REMARK 3 S TENSOR REMARK 3 S11: -0.1840 S12: -0.5124 S13: -0.1574 REMARK 3 S21: 0.3615 S22: -0.0120 S23: -0.0080 REMARK 3 S31: 0.1373 S32: 0.0418 S33: -0.0696 REMARK 3 TLS GROUP : 6 REMARK 3 SELECTION: (CHAIN A AND RESID 161:213) REMARK 3 ORIGIN FOR THE GROUP (A): 6.5721 -4.4259 -4.8654 REMARK 3 T TENSOR REMARK 3 T11: 0.0764 T22: 0.1143 REMARK 3 T33: 0.2223 T12: 0.0210 REMARK 3 T13: 0.0184 T23: -0.0110 REMARK 3 L TENSOR REMARK 3 L11: 0.3497 L22: 1.0241 REMARK 3 L33: 0.3440 L12: 0.3979 REMARK 3 L13: 0.0507 L23: 0.6099 REMARK 3 S TENSOR REMARK 3 S11: -0.1456 S12: -0.1482 S13: -0.2142 REMARK 3 S21: 0.1540 S22: 0.0215 S23: -0.0667 REMARK 3 S31: 0.0673 S32: 0.0650 S33: -0.0572 REMARK 3 TLS GROUP : 7 REMARK 3 SELECTION: (CHAIN A AND RESID 214:269) REMARK 3 ORIGIN FOR THE GROUP (A): -3.5427 4.2038 -8.7831 REMARK 3 T TENSOR REMARK 3 T11: 0.1594 T22: 0.1495 REMARK 3 T33: 0.0517 T12: 0.0009 REMARK 3 T13: -0.0213 T23: 0.0131 REMARK 3 L TENSOR REMARK 3 L11: 3.0901 L22: 4.0546 REMARK 3 L33: 0.7536 L12: 2.3026 REMARK 3 L13: -0.5112 L23: 0.8766 REMARK 3 S TENSOR REMARK 3 S11: -0.0592 S12: 0.5655 S13: 0.3702 REMARK 3 S21: -0.4127 S22: 0.0230 S23: 0.4515 REMARK 3 S31: -0.0934 S32: -0.0706 S33: -0.2329 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2XEY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 19-MAY-10. REMARK 100 THE DEPOSITION ID IS D_1290043964. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JUN-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL 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 MICROMAX-007 HF REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RIGAKU CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 8638 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.700 REMARK 200 RESOLUTION RANGE LOW (A) : 43.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.500 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.4 REMARK 200 DATA REDUNDANCY : 2.500 REMARK 200 R MERGE (I) : 0.11000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 6.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.85 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.8 REMARK 200 DATA REDUNDANCY IN SHELL : 2.40 REMARK 200 R MERGE FOR SHELL (I) : 0.50000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: PDB ENTRY 2WMW REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.70 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: DL-MALIC ACID/PEG3350 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 32.83000 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 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 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 MET A 1 REMARK 465 ALA A 2 REMARK 465 VAL A 3 REMARK 465 PRO A 4 REMARK 465 PHE A 5 REMARK 465 GLU A 17 REMARK 465 GLY A 18 REMARK 465 ALA A 19 REMARK 465 TYR A 20 REMARK 465 MET A 42 REMARK 465 LYS A 43 REMARK 465 ARG A 44 REMARK 465 ALA A 45 REMARK 465 VAL A 46 REMARK 465 ASP A 47 REMARK 465 CYS A 48 REMARK 465 PRO A 49 REMARK 465 LYS A 270 REMARK 465 LYS A 271 REMARK 465 GLY A 272 REMARK 465 ALA A 273 REMARK 465 LYS A 274 REMARK 465 ARG A 275 REMARK 465 PRO A 276 REMARK 465 ARG A 277 REMARK 465 VAL A 278 REMARK 465 THR A 279 REMARK 465 SER A 280 REMARK 465 GLY A 281 REMARK 465 GLY A 282 REMARK 465 VAL A 283 REMARK 465 SER A 284 REMARK 465 GLU A 285 REMARK 465 SER A 286 REMARK 465 PRO A 287 REMARK 465 SER A 288 REMARK 465 GLY A 289 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 OD1 ASP A 213 NZ LYS A 222 1.93 REMARK 500 O GLN A 13 N LEU A 25 2.13 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 99 -2.28 78.83 REMARK 500 ARG A 129 -6.26 79.92 REMARK 500 ASP A 148 102.51 92.90 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE YVQ A 1270 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2XF0 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2BRB RELATED DB: PDB REMARK 900 STRUCTURE-BASED DESIGN OF NOVEL CHK1 INHIBITORS: INSIGHTS INTO REMARK 900 HYDROGEN BONDING AND PROTEIN-LIGAND AFFINITY REMARK 900 RELATED ID: 2X8D RELATED DB: PDB REMARK 900 DISCOVERY OF A NOVEL CLASS OF TRIAZOLONES AS CHECKPOINT KINASE REMARK 900 INHIBITORS - HIT TO LEAD EXPLORATION REMARK 900 RELATED ID: 2WMR RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2CGV RELATED DB: PDB REMARK 900 IDENTIFICATION OF CHEMICALLY DIVERSE CHK1 INHIBITORS BY RECEPTOR- REMARK 900 BASED VIRTUAL SCREENING REMARK 900 RELATED ID: 2BRN RELATED DB: PDB REMARK 900 STRUCTURE-BASED DESIGN OF NOVEL CHK1 INHIBITORS: INSIGHTS INTO REMARK 900 HYDROGEN BONDING AND PROTEIN-LIGAND AFFINITY REMARK 900 RELATED ID: 2AYP RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHK1 WITH AN INDOL INHIBITOR REMARK 900 RELATED ID: 2WMX RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2CGU RELATED DB: PDB REMARK 900 IDENTIFICATION OF CHEMICALLY DIVERSE CHK1 INHIBITORS BY RECEPTOR- REMARK 900 BASED VIRTUAL SCREENING REMARK 900 RELATED ID: 1NVS RELATED DB: PDB REMARK 900 THE COMPLEX STRUCTURE OF CHECKPOINT KINASE CHK1/SB218078 REMARK 900 RELATED ID: 1NVQ RELATED DB: PDB REMARK 900 THE COMPLEX STRUCTURE OF CHECKPOINT KINASE CHK1/UCN-01 REMARK 900 RELATED ID: 2BRM RELATED DB: PDB REMARK 900 STRUCTURE-BASED DESIGN OF NOVEL CHK1 INHIBITORS: INSIGHTS INTO REMARK 900 HYDROGEN BONDING AND PROTEIN-LIGAND AFFINITY REMARK 900 RELATED ID: 2WMT RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2CGX RELATED DB: PDB REMARK 900 IDENTIFICATION OF CHEMICALLY DIVERSE CHK1 INHIBITORS BY RECEPTOR- REMARK 900 BASED VIRTUAL SCREENING REMARK 900 RELATED ID: 2BRO RELATED DB: PDB REMARK 900 STRUCTURE-BASED DESIGN OF NOVEL CHK1 INHIBITORS: INSIGHTS INTO REMARK 900 HYDROGEN BONDING AND PROTEIN-LIGAND AFFINITY REMARK 900 RELATED ID: 2C3J RELATED DB: PDB REMARK 900 IDENTIFICATION OF A BURIED POCKET FOR POTENT AND SELECTIVE REMARK 900 INHIBITION OF CHK1: PREDICTION AND VERIFICATION REMARK 900 RELATED ID: 2WMW RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2WMU RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2BRH RELATED DB: PDB REMARK 900 STRUCTURE-BASED DESIGN OF NOVEL CHK1 INHIBITORS: INSIGHTS INTO REMARK 900 HYDROGEN BONDING AND PROTEIN-LIGAND AFFINITY REMARK 900 RELATED ID: 2X8E RELATED DB: PDB REMARK 900 DISCOVERY OF A NOVEL CLASS OF TRIAZOLONES AS CHECKPOINT KINASE REMARK 900 INHIBITORS - HIT TO LEAD EXPLORATION REMARK 900 RELATED ID: 1NVR RELATED DB: PDB REMARK 900 THE COMPLEX STRUCTURE OF CHECKPOINT KINASECHK1 /STAUROSPORINE REMARK 900 RELATED ID: 2C3K RELATED DB: PDB REMARK 900 IDENTIFICATION OF A BURIED POCKET FOR POTENT AND SELECTIVE REMARK 900 INHIBITION OF CHK1: PREDICTION AND VERIFICATION REMARK 900 RELATED ID: 2WMQ RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2CGW RELATED DB: PDB REMARK 900 IDENTIFICATION OF CHEMICALLY DIVERSE CHK1 INHIBITORS BY RECEPTOR- REMARK 900 BASED VIRTUAL SCREENING REMARK 900 RELATED ID: 1ZLT RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHK1 COMPLEXED WITH A HYMENALDISINEANALOG REMARK 900 RELATED ID: 1ZYS RELATED DB: PDB REMARK 900 CO-CRYSTAL STRUCTURE OF CHECKPOINT KINASE CHK1 WITH APYRROLO- REMARK 900 PYRIDINE INHIBITOR REMARK 900 RELATED ID: 2XEZ RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2BR1 RELATED DB: PDB REMARK 900 STRUCTURE-BASED DESIGN OF NOVEL CHK1 INHIBITORS: INSIGHTS INTO REMARK 900 HYDROGEN BONDING AND PROTEIN-LIGAND AFFINITY REMARK 900 RELATED ID: 1IA8 RELATED DB: PDB REMARK 900 THE 1.7 A CRYSTAL STRUCTURE OF HUMAN CELL CYCLE CHECKPOINTKINASE REMARK 900 CHK1 REMARK 900 RELATED ID: 2BRG RELATED DB: PDB REMARK 900 STRUCTURE-BASED DESIGN OF NOVEL CHK1 INHIBITORS: INSIGHTS INTO REMARK 900 HYDROGEN BONDING AND PROTEIN-LIGAND AFFINITY REMARK 900 RELATED ID: 2WMV RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2WMS RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2C3L RELATED DB: PDB REMARK 900 IDENTIFICATION OF A BURIED POCKET FOR POTENT AND SELECTIVE REMARK 900 INHIBITION OF CHK1: PREDICTION AND VERIFICATION REMARK 900 RELATED ID: 2X8I RELATED DB: PDB REMARK 900 DISCOVERY OF A NOVEL CLASS OF TRIAZOLONES AS CHECKPOINT KINASE REMARK 900 INHIBITORS - HIT TO LEAD EXPLORATION DBREF 2XEY A 1 289 UNP O14757 CHK1_HUMAN 1 289 SEQRES 1 A 289 MET ALA VAL PRO PHE VAL GLU ASP TRP ASP LEU VAL GLN SEQRES 2 A 289 THR LEU GLY GLU GLY ALA TYR GLY GLU VAL GLN LEU ALA SEQRES 3 A 289 VAL ASN ARG VAL THR GLU GLU ALA VAL ALA VAL LYS ILE SEQRES 4 A 289 VAL ASP MET LYS ARG ALA VAL ASP CYS PRO GLU ASN ILE SEQRES 5 A 289 LYS LYS GLU ILE CYS ILE ASN LYS MET LEU ASN HIS GLU SEQRES 6 A 289 ASN VAL VAL LYS PHE TYR GLY HIS ARG ARG GLU GLY ASN SEQRES 7 A 289 ILE GLN TYR LEU PHE LEU GLU TYR CYS SER GLY GLY GLU SEQRES 8 A 289 LEU PHE ASP ARG ILE GLU PRO ASP ILE GLY MET PRO GLU SEQRES 9 A 289 PRO ASP ALA GLN ARG PHE PHE HIS GLN LEU MET ALA GLY SEQRES 10 A 289 VAL VAL TYR LEU HIS GLY ILE GLY ILE THR HIS ARG ASP SEQRES 11 A 289 ILE LYS PRO GLU ASN LEU LEU LEU ASP GLU ARG ASP ASN SEQRES 12 A 289 LEU LYS ILE SER ASP PHE GLY LEU ALA THR VAL PHE ARG SEQRES 13 A 289 TYR ASN ASN ARG GLU ARG LEU LEU ASN LYS MET CYS GLY SEQRES 14 A 289 THR LEU PRO TYR VAL ALA PRO GLU LEU LEU LYS ARG ARG SEQRES 15 A 289 GLU PHE HIS ALA GLU PRO VAL ASP VAL TRP SER CYS GLY SEQRES 16 A 289 ILE VAL LEU THR ALA MET LEU ALA GLY GLU LEU PRO TRP SEQRES 17 A 289 ASP GLN PRO SER ASP SER CYS GLN GLU TYR SER ASP TRP SEQRES 18 A 289 LYS GLU LYS LYS THR TYR LEU ASN PRO TRP LYS LYS ILE SEQRES 19 A 289 ASP SER ALA PRO LEU ALA LEU LEU HIS LYS ILE LEU VAL SEQRES 20 A 289 GLU ASN PRO SER ALA ARG ILE THR ILE PRO ASP ILE LYS SEQRES 21 A 289 LYS ASP ARG TRP TYR ASN LYS PRO LEU LYS LYS GLY ALA SEQRES 22 A 289 LYS ARG PRO ARG VAL THR SER GLY GLY VAL SER GLU SER SEQRES 23 A 289 PRO SER GLY HET YVQ A1270 23 HETNAM YVQ 3-(1H-INDOL-3-YL)-6-(1H-PYRAZOL-4-YL)IMIDAZO[1,2- HETNAM 2 YVQ A]PYRAZINE FORMUL 2 YVQ C17 H12 N6 FORMUL 3 HOH *11(H2 O) HELIX 1 1 GLU A 50 LEU A 62 1 13 HELIX 2 2 PHE A 93 ILE A 96 5 4 HELIX 3 3 PRO A 103 ILE A 124 1 22 HELIX 4 4 LYS A 132 GLU A 134 5 3 HELIX 5 5 ALA A 175 ARG A 181 1 7 HELIX 6 6 HIS A 185 GLY A 204 1 20 HELIX 7 7 CYS A 215 LYS A 224 1 10 HELIX 8 8 ASP A 235 LEU A 246 1 12 HELIX 9 9 THR A 255 LYS A 261 1 7 SHEET 1 AA 4 GLU A 22 VAL A 27 0 SHEET 2 AA 4 ALA A 34 VAL A 40 -1 O VAL A 35 N ALA A 26 SHEET 3 AA 4 ILE A 79 GLU A 85 -1 O GLN A 80 N VAL A 40 SHEET 4 AA 4 PHE A 70 GLU A 76 -1 N TYR A 71 O PHE A 83 SHEET 1 AB 3 GLY A 90 GLU A 91 0 SHEET 2 AB 3 LEU A 136 LEU A 138 -1 N LEU A 138 O GLY A 90 SHEET 3 AB 3 LEU A 144 ILE A 146 -1 O LYS A 145 N LEU A 137 SHEET 1 AC 2 ILE A 126 THR A 127 0 SHEET 2 AC 2 THR A 153 VAL A 154 -1 O THR A 153 N THR A 127 SHEET 1 AD 2 ARG A 156 TYR A 157 0 SHEET 2 AD 2 ARG A 160 GLU A 161 -1 O ARG A 160 N TYR A 157 CISPEP 1 ASN A 229 PRO A 230 0 3.13 SITE 1 AC1 6 LEU A 15 ALA A 36 GLU A 85 CYS A 87 SITE 2 AC1 6 GLY A 90 LEU A 137 CRYST1 44.970 65.660 57.960 90.00 93.91 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 0.022237 0.000000 0.001520 0.00000 SCALE2 0.000000 0.015230 0.000000 0.00000 SCALE3 0.000000 0.000000 0.017294 0.00000