HEADER TRANSFERASE 19-MAY-10 2XF0 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 2XF0 1 REMARK REVDAT 3 28-JUN-17 2XF0 1 REMARK REVDAT 2 21-JUL-10 2XF0 1 JRNL REVDAT 1 30-JUN-10 2XF0 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. 2.40 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) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.75 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.6 REMARK 3 NUMBER OF REFLECTIONS : 10899 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.205 REMARK 3 R VALUE (WORKING SET) : 0.203 REMARK 3 FREE R VALUE : 0.244 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.700 REMARK 3 FREE R VALUE TEST SET COUNT : 509 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 27.7478 - 3.8074 0.88 2511 107 0.1763 0.2014 REMARK 3 2 3.8074 - 3.0232 0.92 2587 132 0.1936 0.2672 REMARK 3 3 3.0232 - 2.6414 0.95 2621 150 0.2294 0.2696 REMARK 3 4 2.6414 - 2.4001 0.96 2671 120 0.2535 0.2823 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.00 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 K_SOL : 0.37 REMARK 3 B_SOL : 43.40 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.270 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 22.500 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 34.52 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -10.46600 REMARK 3 B22 (A**2) : 2.68860 REMARK 3 B33 (A**2) : 7.77740 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -4.46640 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 : 0.007 2132 REMARK 3 ANGLE : 1.002 2878 REMARK 3 CHIRALITY : 0.072 310 REMARK 3 PLANARITY : 0.008 366 REMARK 3 DIHEDRAL : 15.978 792 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 6 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: (CHAIN A AND RESID 4:9) REMARK 3 ORIGIN FOR THE GROUP (A): 4.1524 -5.8584 -6.9225 REMARK 3 T TENSOR REMARK 3 T11: 0.5487 T22: 0.5813 REMARK 3 T33: 0.3948 T12: -0.1164 REMARK 3 T13: -0.1298 T23: 0.1179 REMARK 3 L TENSOR REMARK 3 L11: 0.0128 L22: 0.0095 REMARK 3 L33: 0.0010 L12: 0.0067 REMARK 3 L13: -0.0036 L23: -0.0004 REMARK 3 S TENSOR REMARK 3 S11: 0.1096 S12: -0.0013 S13: 0.1432 REMARK 3 S21: 0.0021 S22: 0.0954 S23: 0.0605 REMARK 3 S31: 0.0572 S32: -0.0888 S33: -0.0000 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: (CHAIN A AND RESID 10:40) REMARK 3 ORIGIN FOR THE GROUP (A): 9.5512 -4.9652 -2.0831 REMARK 3 T TENSOR REMARK 3 T11: 0.6583 T22: 0.4357 REMARK 3 T33: 0.2992 T12: -0.0246 REMARK 3 T13: -0.1179 T23: -0.0782 REMARK 3 L TENSOR REMARK 3 L11: 0.2215 L22: 0.2847 REMARK 3 L33: 0.1071 L12: -0.1496 REMARK 3 L13: -0.0248 L23: -0.0148 REMARK 3 S TENSOR REMARK 3 S11: 0.3971 S12: 0.6638 S13: 0.2638 REMARK 3 S21: -0.2621 S22: 0.1132 S23: -0.4001 REMARK 3 S31: -0.0565 S32: 0.1139 S33: 0.0013 REMARK 3 TLS GROUP : 3 REMARK 3 SELECTION: (CHAIN A AND RESID 41:97) REMARK 3 ORIGIN FOR THE GROUP (A): 5.3336 -1.0428 8.7201 REMARK 3 T TENSOR REMARK 3 T11: 0.2139 T22: 0.4798 REMARK 3 T33: 0.1658 T12: -0.0437 REMARK 3 T13: -0.0692 T23: -0.1046 REMARK 3 L TENSOR REMARK 3 L11: 0.3959 L22: 0.3556 REMARK 3 L33: 0.3051 L12: -0.1098 REMARK 3 L13: -0.2554 L23: -0.0796 REMARK 3 S TENSOR REMARK 3 S11: -0.1338 S12: 0.9914 S13: -0.0914 REMARK 3 S21: -0.3514 S22: 0.0091 S23: -0.0749 REMARK 3 S31: -0.0745 S32: -0.0927 S33: -0.0472 REMARK 3 TLS GROUP : 4 REMARK 3 SELECTION: (CHAIN A AND RESID 98:160) REMARK 3 ORIGIN FOR THE GROUP (A): 10.9357 4.6215 19.1003 REMARK 3 T TENSOR REMARK 3 T11: 0.0347 T22: 0.0790 REMARK 3 T33: 0.1209 T12: -0.0163 REMARK 3 T13: -0.0083 T23: -0.0028 REMARK 3 L TENSOR REMARK 3 L11: 0.6173 L22: 0.7367 REMARK 3 L33: 0.1495 L12: 0.4116 REMARK 3 L13: 0.1192 L23: -0.0317 REMARK 3 S TENSOR REMARK 3 S11: -0.1929 S12: 0.2542 S13: 0.0224 REMARK 3 S21: -0.0885 S22: 0.0710 S23: 0.0487 REMARK 3 S31: 0.0109 S32: 0.0299 S33: -0.0225 REMARK 3 TLS GROUP : 5 REMARK 3 SELECTION: (CHAIN A AND RESID 161:214) REMARK 3 ORIGIN FOR THE GROUP (A): 10.4663 -3.7877 30.8080 REMARK 3 T TENSOR REMARK 3 T11: 0.1480 T22: 0.1168 REMARK 3 T33: 0.2408 T12: -0.0289 REMARK 3 T13: 0.0381 T23: 0.0848 REMARK 3 L TENSOR REMARK 3 L11: 0.3350 L22: 0.1306 REMARK 3 L33: 0.1384 L12: -0.1119 REMARK 3 L13: -0.0870 L23: 0.0475 REMARK 3 S TENSOR REMARK 3 S11: -0.2642 S12: -0.1573 S13: -0.5532 REMARK 3 S21: -0.0117 S22: 0.0617 S23: -0.0716 REMARK 3 S31: 0.0823 S32: -0.0073 S33: -0.0621 REMARK 3 TLS GROUP : 6 REMARK 3 SELECTION: (CHAIN A AND RESID 215:270) REMARK 3 ORIGIN FOR THE GROUP (A): 20.8395 5.2051 34.3969 REMARK 3 T TENSOR REMARK 3 T11: 0.1304 T22: 0.2696 REMARK 3 T33: 0.1081 T12: -0.0236 REMARK 3 T13: -0.0078 T23: -0.0331 REMARK 3 L TENSOR REMARK 3 L11: 5.4273 L22: 0.8828 REMARK 3 L33: 0.6550 L12: 0.0305 REMARK 3 L13: -1.2909 L23: -0.5133 REMARK 3 S TENSOR REMARK 3 S11: 0.3312 S12: -1.3316 S13: 0.5986 REMARK 3 S21: 0.2440 S22: -0.2482 S23: -0.2032 REMARK 3 S31: -0.1606 S32: 0.4131 S33: 0.2012 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 2XF0 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_1290043966. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-NOV-05 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 : 10918 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 30.700 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.500 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.0 REMARK 200 DATA REDUNDANCY : 2.500 REMARK 200 R MERGE (I) : 0.10000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 5.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.53 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.3 REMARK 200 DATA REDUNDANCY IN SHELL : 2.40 REMARK 200 R MERGE FOR SHELL (I) : 0.53000 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 (%): 49.10 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40 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 32.52100 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 GLU A 17 REMARK 465 GLY A 18 REMARK 465 ALA A 19 REMARK 465 TYR A 20 REMARK 465 GLY A 21 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 GLU A 50 REMARK 465 GLY A 77 REMARK 465 ASN A 78 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 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 PHE A 5 CG CD1 CD2 CE1 CE2 CZ 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 OD2 ASP A 94 O HOH A 2005 1.70 REMARK 500 OD1 ASP A 209 O HOH A 2034 2.06 REMARK 500 OE1 GLN A 210 OG SER A 212 2.08 REMARK 500 O PRO A 172 O HOH A 2025 2.16 REMARK 500 OD1 ASP A 213 NZ LYS A 222 2.16 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 GLU A 7 -133.12 54.42 REMARK 500 ASP A 99 -5.91 79.73 REMARK 500 ARG A 129 -2.44 79.64 REMARK 500 ASP A 130 36.57 -140.30 REMARK 500 ASP A 148 102.17 66.74 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 4UB A 1271 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 1272 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 1273 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 1274 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 1275 REMARK 900 REMARK 900 RELATED ENTRIES 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: 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: 2WMW RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS 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: 2WMU RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS 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: 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: 2CGV RELATED DB: PDB REMARK 900 IDENTIFICATION OF CHEMICALLY DIVERSE CHK1 INHIBITORS BY RECEPTOR- REMARK 900 BASED VIRTUAL SCREENING 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: 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: 1NVR RELATED DB: PDB REMARK 900 THE COMPLEX STRUCTURE OF CHECKPOINT KINASECHK1 /STAUROSPORINE 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: 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: 2WMX RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS REMARK 900 RELATED ID: 2AYP RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHK1 WITH AN INDOL INHIBITOR 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: 2CGU RELATED DB: PDB REMARK 900 IDENTIFICATION OF CHEMICALLY DIVERSE CHK1 INHIBITORS BY RECEPTOR- REMARK 900 BASED VIRTUAL SCREENING 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: 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: 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: 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: 2WMS RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS 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: 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 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: 2XEY RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS DBREF 2XF0 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 4UB A1271 20 HET EDO A1272 4 HET EDO A1273 4 HET EDO A1274 4 HET EDO A1275 4 HETNAM 4UB 3-PHENYL-6-(1H-PYRAZOL-4-YL)IMIDAZO[1,2-A]PYRAZINE HETNAM EDO 1,2-ETHANEDIOL HETSYN EDO ETHYLENE GLYCOL FORMUL 2 4UB C15 H11 N5 FORMUL 3 EDO 4(C2 H6 O2) FORMUL 7 HOH *45(H2 O) HELIX 1 1 ASN A 51 MET A 61 1 11 HELIX 2 2 LEU A 92 ILE A 96 1 5 HELIX 3 3 PRO A 103 ILE A 124 1 22 HELIX 4 4 THR A 170 VAL A 174 5 5 HELIX 5 5 PRO A 176 ARG A 181 1 6 HELIX 6 6 HIS A 185 GLY A 204 1 20 HELIX 7 7 CYS A 215 GLU A 223 1 9 HELIX 8 8 PRO A 230 ILE A 234 5 5 HELIX 9 9 ASP A 235 LEU A 246 1 12 HELIX 10 10 THR A 255 LYS A 261 1 7 HELIX 11 11 ASP A 262 LYS A 267 1 6 SHEET 1 AA 6 PHE A 5 VAL A 6 0 SHEET 2 AA 6 TRP A 9 THR A 14 -1 O TRP A 9 N VAL A 6 SHEET 3 AA 6 VAL A 23 ASN A 28 -1 O LEU A 25 N VAL A 12 SHEET 4 AA 6 ALA A 34 VAL A 40 -1 O VAL A 35 N ALA A 26 SHEET 5 AA 6 GLN A 80 GLU A 85 -1 O GLN A 80 N VAL A 40 SHEET 6 AA 6 PHE A 70 ARG A 75 -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 2.93 SITE 1 AC1 10 LEU A 15 VAL A 23 ALA A 36 GLU A 85 SITE 2 AC1 10 TYR A 86 CYS A 87 GLY A 90 LEU A 137 SITE 3 AC1 10 SER A 147 HOH A2045 SITE 1 AC2 3 CYS A 57 MET A 61 GLU A 97 SITE 1 AC3 4 PRO A 103 TYR A 157 ASN A 158 EDO A1274 SITE 1 AC4 7 GLY A 123 ILE A 124 GLY A 125 ARG A 156 SITE 2 AC4 7 ASN A 158 ASN A 159 EDO A1273 SITE 1 AC5 4 TRP A 221 LYS A 224 HIS A 243 LEU A 246 CRYST1 44.759 65.042 53.039 90.00 101.40 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 0.022342 0.000000 0.004505 0.00000 SCALE2 0.000000 0.015375 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019234 0.00000