HEADER TRANSFERASE 08-MAR-10 2X8D TITLE DISCOVERY OF A NOVEL CLASS OF TRIAZOLONES AS CHECKPOINT KINASE TITLE 2 INHIBITORS - HIT TO LEAD EXPLORATION COMPND MOL_ID: 1; COMPND 2 MOLECULE: SERINE/THREONINE-PROTEIN KINASE CHK1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: CHK1KD, RESIDUES 1-289; COMPND 5 SYNONYM: CHK1 CHECKPOINT KINASE; 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_STRAIN: SF9; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: BACULOVIRUS KEYWDS NUCLEOTIDE-BINDING, CYTOSKELETON, PHOSPHOPROTEIN, ISOPEPTIDE BOND, KEYWDS 2 CELL CYCLE, TRANSFERASE, DNA DAMAGE, DNA REPAIR EXPDTA X-RAY DIFFRACTION AUTHOR J.A.READ,J.BREED,H.HAYE,E.MCCALL,S.ROWSELL,A.VALLENTINE,A.WHITE REVDAT 4 20-DEC-23 2X8D 1 REMARK REVDAT 3 08-MAY-19 2X8D 1 REMARK REVDAT 2 25-AUG-10 2X8D 1 JRNL REVDAT 1 11-AUG-10 2X8D 0 JRNL AUTH V.OZA,S.ASHWELL,P.BRASSIL,J.BREED,C.DENG,J.EZHUTHACHAN, JRNL AUTH 2 H.HAYE,C.HORN,J.JANETKA,P.LYNE,N.NEWCOMBE,L.OTTERBIEN, JRNL AUTH 3 M.PASS,J.A.READ,S.ROSWELL,M.SU,D.TOADER,D.YU,Y.YU, JRNL AUTH 4 A.VALENTINE,P.WEBBORN,A.WHITE,S.ZABLUDOFF,X.ZHENG JRNL TITL DISCOVERY OF A NOVEL CLASS OF TRIAZOLONES AS CHECKPOINT JRNL TITL 2 KINASE INHIBITORS-HIT TO LEAD EXPLORATION. JRNL REF BIOORG.MED.CHEM. V. 20 5133 2010 JRNL REFN ISSN 0968-0896 JRNL PMID 20673630 JRNL DOI 10.1016/J.BMCL.2010.07.015 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0102 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) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 37.30 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 93.1 REMARK 3 NUMBER OF REFLECTIONS : 23949 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) : 0.162 REMARK 3 R VALUE (WORKING SET) : 0.160 REMARK 3 FREE R VALUE : 0.192 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1270 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) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.95 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1139 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 60.03 REMARK 3 BIN R VALUE (WORKING SET) : 0.2280 REMARK 3 BIN FREE R VALUE SET COUNT : 64 REMARK 3 BIN FREE R VALUE : 0.2940 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2235 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 25 REMARK 3 SOLVENT ATOMS : 352 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.97 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.17000 REMARK 3 B22 (A**2) : 0.63000 REMARK 3 B33 (A**2) : -0.55000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.58000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.140 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.126 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.079 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.872 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.945 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.921 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2328 ; 0.011 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 1597 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3160 ; 1.298 ; 1.980 REMARK 3 BOND ANGLES OTHERS (DEGREES): 3898 ; 1.144 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 278 ; 5.408 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 110 ;35.661 ;24.364 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 408 ;12.516 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 15 ;15.705 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 338 ; 0.075 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2581 ; 0.005 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 459 ; 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): 1396 ; 0.606 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 556 ; 0.119 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2264 ; 1.125 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 932 ; 1.679 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 896 ; 2.750 ; 4.500 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 : 1 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 2 A 280 REMARK 3 ORIGIN FOR THE GROUP (A): 5.3321 0.1460 6.8034 REMARK 3 T TENSOR REMARK 3 T11: 0.0121 T22: 0.0034 REMARK 3 T33: 0.0213 T12: -0.0020 REMARK 3 T13: 0.0006 T23: 0.0003 REMARK 3 L TENSOR REMARK 3 L11: 0.3290 L22: 0.2437 REMARK 3 L33: 0.6540 L12: -0.0870 REMARK 3 L13: -0.0877 L23: 0.0237 REMARK 3 S TENSOR REMARK 3 S11: -0.0154 S12: 0.0085 S13: -0.0111 REMARK 3 S21: 0.0284 S22: -0.0091 S23: 0.0041 REMARK 3 S31: 0.0474 S32: 0.0273 S33: 0.0245 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 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 RESIDUAL ONLY. ATOM RECORD CONTAINS RESIDUAL REMARK 3 B FACTORS ONLY. REMARK 4 REMARK 4 2X8D COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 08-MAR-10. REMARK 100 THE DEPOSITION ID IS D_1290043160. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-DEC-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.8 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SRS REMARK 200 BEAMLINE : PX9.6 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.86 REMARK 200 MONOCHROMATOR : SI111 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 25219 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 37.300 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.8 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 : 8.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 64.6 REMARK 200 DATA REDUNDANCY IN SHELL : 1.90 REMARK 200 R MERGE FOR SHELL (I) : 0.24000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1IA8 REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.21 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.63 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: HANGING DROP. 3UL PLUS 3UL PROTEIN: 7 REMARK 280 MG/ML, 25MM TRIS PH7.5, 500MM NACL, 5% GLYCEROL. 5MM DTT WELL: REMARK 280 15-17% (W/V) PEG8000, 250MM AMMONIUM SULPHATE, 2% (V/V) GLYCEROL REMARK 280 AND 100 MM SODIUM CACODYLATE PH 6.8, VAPOR DIFFUSION, HANGING REMARK 280 DROP 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 33.11800 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 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 LYS A 43 CG CD CE NZ REMARK 470 ARG A 44 CG CD NE CZ NH1 NH2 REMARK 470 ASP A 47 CG OD1 OD2 REMARK 470 LYS A 53 CD CE NZ REMARK 470 ARG A 141 CZ NH1 NH2 REMARK 470 LYS A 274 CG CD CE NZ REMARK 470 ARG A 277 CZ NH1 NH2 REMARK 470 GLY A 281 CA C O 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 O HOH A 2132 O HOH A 2295 2.19 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 PHE A 5 -5.34 81.17 REMARK 500 ASP A 99 -0.81 65.22 REMARK 500 ASP A 130 48.32 -150.90 REMARK 500 ASP A 148 98.27 75.16 REMARK 500 ASN A 165 -11.56 -140.35 REMARK 500 LEU A 269 -35.81 -134.21 REMARK 500 SER A 280 -162.78 -118.31 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A2008 DISTANCE = 6.26 ANGSTROMS REMARK 525 HOH A2027 DISTANCE = 6.98 ANGSTROMS REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE X8D A 1282 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1283 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1284 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: 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: 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: 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: 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: 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: 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: 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: 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: 1NVS RELATED DB: PDB REMARK 900 THE COMPLEX STRUCTURE OF CHECKPOINT KINASE CHK1/SB218078 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: 1NVQ RELATED DB: PDB REMARK 900 THE COMPLEX STRUCTURE OF CHECKPOINT KINASE CHK1/UCN-01 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: 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: 2X8I RELATED DB: PDB REMARK 900 DISCOVERY OF A NOVEL CLASS OF TRIAZOLONES AS CHECKPOINT KINASE REMARK 900 INHIBITORS - HIT TO LEAD EXPLORATION DBREF 2X8D 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 X8D A1282 15 HET SO4 A1283 5 HET SO4 A1284 5 HETNAM X8D 5-METHYL[1,2,4]TRIAZOLO[4,3-A]QUINOLIN-1(2H)-ONE HETNAM SO4 SULFATE ION FORMUL 2 X8D C11 H9 N3 O FORMUL 3 SO4 2(O4 S 2-) FORMUL 5 HOH *352(H2 O) HELIX 1 1 ASP A 47 LYS A 60 1 14 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 THR A 170 VAL A 174 5 5 HELIX 6 6 ALA A 175 ARG A 181 1 7 HELIX 7 7 HIS A 185 GLY A 204 1 20 HELIX 8 8 CYS A 215 GLU A 223 1 9 HELIX 9 9 PRO A 230 ILE A 234 5 5 HELIX 10 10 ASP A 235 LEU A 246 1 12 HELIX 11 11 THR A 255 LYS A 260 1 6 SHEET 1 AA 5 TRP A 9 GLU A 17 0 SHEET 2 AA 5 GLY A 21 ASN A 28 -1 O VAL A 23 N LEU A 15 SHEET 3 AA 5 ALA A 34 ASP A 41 -1 O VAL A 35 N ALA A 26 SHEET 4 AA 5 ILE A 79 GLU A 85 -1 O GLN A 80 N VAL A 40 SHEET 5 AA 5 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 -0.99 SITE 1 AC1 6 LEU A 15 ALA A 36 GLU A 85 CYS A 87 SITE 2 AC1 6 LEU A 137 HOH A2347 SITE 1 AC2 6 LYS A 54 ARG A 129 THR A 153 ARG A 162 SITE 2 AC2 6 LYS A 166 HOH A2348 SITE 1 AC3 6 SER A 214 HOH A2272 HOH A2349 HOH A2350 SITE 2 AC3 6 HOH A2351 HOH A2352 CRYST1 45.000 66.236 58.473 90.00 94.59 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 0.022222 0.000000 0.001784 0.00000 SCALE2 0.000000 0.015098 0.000000 0.00000 SCALE3 0.000000 0.000000 0.017157 0.00000