HEADER TRANSFERASE 09-MAR-10 2X8I 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,L.OTTERBEIN,A.VALLENTINE,A.WHITE REVDAT 5 20-DEC-23 2X8I 1 REMARK REVDAT 4 24-JUL-19 2X8I 1 REMARK REVDAT 3 08-MAY-19 2X8I 1 REMARK REVDAT 2 25-AUG-10 2X8I 1 JRNL REVDAT 1 11-AUG-10 2X8I 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. 1.92 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) : 1.92 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 31.16 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 93.6 REMARK 3 NUMBER OF REFLECTIONS : 21383 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) : 0.189 REMARK 3 R VALUE (WORKING SET) : 0.188 REMARK 3 FREE R VALUE : 0.224 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1147 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) : 1.92 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.97 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1377 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 83.53 REMARK 3 BIN R VALUE (WORKING SET) : 0.2100 REMARK 3 BIN FREE R VALUE SET COUNT : 89 REMARK 3 BIN FREE R VALUE : 0.2440 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2091 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 38 REMARK 3 SOLVENT ATOMS : 241 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.69 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.49000 REMARK 3 B22 (A**2) : 1.65000 REMARK 3 B33 (A**2) : -0.17000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.168 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.149 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.094 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 6.927 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.942 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.929 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2199 ; 0.007 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 1479 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2988 ; 1.269 ; 1.980 REMARK 3 BOND ANGLES OTHERS (DEGREES): 3620 ; 1.825 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 261 ; 5.158 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 103 ;37.479 ;24.563 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 377 ;12.344 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 12 ;15.719 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 321 ; 0.157 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2445 ; 0.004 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 436 ; 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): 1309 ; 0.503 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 523 ; 0.077 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2124 ; 0.937 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 890 ; 1.275 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 864 ; 2.124 ; 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 269 REMARK 3 ORIGIN FOR THE GROUP (A): 14.3948 1.0427 34.4130 REMARK 3 T TENSOR REMARK 3 T11: 0.0557 T22: 0.0038 REMARK 3 T33: 0.0370 T12: -0.0040 REMARK 3 T13: -0.0139 T23: 0.0006 REMARK 3 L TENSOR REMARK 3 L11: 0.9197 L22: 0.1045 REMARK 3 L33: 0.5992 L12: -0.0439 REMARK 3 L13: -0.2134 L23: 0.0942 REMARK 3 S TENSOR REMARK 3 S11: -0.0127 S12: -0.0551 S13: -0.0071 REMARK 3 S21: -0.0251 S22: 0.0021 S23: -0.0050 REMARK 3 S31: 0.0403 S32: 0.0069 S33: 0.0107 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. ATOM RECORD CONTAINS RESIDUAL B FACTORS ONLY REMARK 4 REMARK 4 2X8I COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 09-MAR-10. REMARK 100 THE DEPOSITION ID IS D_1290043171. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-AUG-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X13 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.8019 REMARK 200 MONOCHROMATOR : SI111 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 22530 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.920 REMARK 200 RESOLUTION RANGE LOW (A) : 31.160 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.3 REMARK 200 DATA REDUNDANCY : 5.800 REMARK 200 R MERGE (I) : 0.08000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 14.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.92 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.02 REMARK 200 COMPLETENESS FOR SHELL (%) : 89.4 REMARK 200 DATA REDUNDANCY IN SHELL : 5.40 REMARK 200 R MERGE FOR SHELL (I) : 0.29000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 5.600 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 2X8D REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.65 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.28 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: HANGING DROP 3 UL PLUS 3UL PROTEIN: REMARK 280 7MG/ML, 2MM COMPOUND, 25MM TRIS PH7.5, 500MM NACL, 5% GLYCEROL. REMARK 280 5MM DTT WELL: 16-22% (W/V) PEG3350, 150MM AMMONIUM SULPHATE AND REMARK 280 100 MM BES PH 6.5, VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-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 20.62750 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 52.12050 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 35.45000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 52.12050 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 20.62750 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 35.45000 REMARK 290 SMTRY3 4 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 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 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 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 GLU A 7 CG CD OE1 OE2 REMARK 470 TYR A 20 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 LYS A 53 CG CD CE NZ REMARK 470 ARG A 75 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 76 CG CD OE1 OE2 REMARK 470 ARG A 263 CG CD NE CZ NH1 NH2 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 VAL A 35 CG1 - CB - CG2 ANGL. DEV. = 11.6 DEGREES REMARK 500 VAL A 174 CG1 - CB - CG2 ANGL. DEV. = 11.1 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 ARG A 129 -2.94 72.43 REMARK 500 ASP A 130 49.88 -145.42 REMARK 500 ASP A 148 96.28 73.34 REMARK 500 ASN A 158 -122.10 52.61 REMARK 500 LEU A 246 55.89 -92.35 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 = 7.03 ANGSTROMS REMARK 525 HOH A2029 DISTANCE = 6.13 ANGSTROMS REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE X8I A 1270 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1271 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1272 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 1273 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: 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: 2WMW 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: 2WMU RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 ( CHK1) IN COMPLEX WITH REMARK 900 INHIBITORS 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: 2CGV RELATED DB: PDB REMARK 900 IDENTIFICATION OF CHEMICALLY DIVERSE CHK1 INHIBITORS BY RECEPTOR- REMARK 900 BASED VIRTUAL SCREENING 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: 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: 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 DBREF 2X8I 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 X8I A1270 22 HET SO4 A1271 5 HET SO4 A1272 5 HET GOL A1273 6 HETNAM X8I 7-(3-HYDROXYPHENYL)-5-METHYL[1,2,4]TRIAZOLO[4,3- HETNAM 2 X8I A]QUINOLIN-1(2H)-ONE HETNAM SO4 SULFATE ION HETNAM GOL GLYCEROL HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL FORMUL 2 X8I C17 H13 N3 O2 FORMUL 3 SO4 2(O4 S 2-) FORMUL 5 GOL C3 H8 O3 FORMUL 6 HOH *241(H2 O) HELIX 1 1 ALA A 2 ASP A 8 1 7 HELIX 2 2 ASN A 51 LYS A 60 1 10 HELIX 3 3 PHE A 93 ILE A 96 5 4 HELIX 4 4 PRO A 103 ILE A 124 1 22 HELIX 5 5 LYS A 132 GLU A 134 5 3 HELIX 6 6 THR A 170 VAL A 174 5 5 HELIX 7 7 PRO A 176 ARG A 181 1 6 HELIX 8 8 HIS A 185 GLY A 204 1 20 HELIX 9 9 CYS A 215 GLU A 223 1 9 HELIX 10 10 PRO A 230 ILE A 234 5 5 HELIX 11 11 ASP A 235 LEU A 246 1 12 HELIX 12 12 THR A 255 LYS A 260 1 6 HELIX 13 13 ASP A 262 LYS A 267 1 6 SHEET 1 AA 5 TRP A 9 GLY A 18 0 SHEET 2 AA 5 GLY A 21 ASN A 28 -1 O GLY A 21 N GLY A 18 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 1.14 SITE 1 AC1 11 LEU A 15 GLY A 16 GLU A 17 ALA A 36 SITE 2 AC1 11 GLU A 85 TYR A 86 CYS A 87 GLU A 91 SITE 3 AC1 11 GLU A 134 LEU A 137 HOH A2126 SITE 1 AC2 5 ARG A 129 THR A 153 ARG A 162 LYS A 166 SITE 2 AC2 5 HOH A2241 SITE 1 AC3 4 GLU A 140 ASN A 159 ARG A 160 HOH A2141 SITE 1 AC4 5 ARG A 156 GLU A 161 GLU A 187 HOH A2139 SITE 2 AC4 5 HOH A2173 CRYST1 41.255 70.900 104.241 90.00 90.00 90.00 P 21 21 21 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 0.024239 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014104 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009593 0.00000