HEADER    TRANSFERASE                             06-JUN-11   2YM6              
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;                                        
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    J.C.READER,T.P.MATTHEWS,S.KLAIR,K.M.J.CHEUNG,J.SCANLON,N.PROISY,      
AUTHOR   2 G.ADDISON,J.ELLARD,N.PITON,S.TAYLOR,M.CHERRY,M.FISHER,K.BOXALL,      
AUTHOR   3 S.BURNS,M.I.WALTON,I.M.WESTWOOD,A.HAYES,P.EVE,M.VALENTI,A.H.BRANDON, 
AUTHOR   4 G.BOX,R.L.M.VANMONTFORT,D.H.WILLIAMS,G.W.AHERNE,F.I.RAYNAUD,         
AUTHOR   5 S.A.ECCLES,M.D.GARRETT,I.COLLINS                                     
REVDAT   3   20-DEC-23 2YM6    1       REMARK                                   
REVDAT   2   28-JUN-17 2YM6    1       REMARK                                   
REVDAT   1   11-JAN-12 2YM6    0                                                
JRNL        AUTH   J.C.READER,T.P.MATTHEWS,S.KLAIR,K.M.J.CHEUNG,J.SCANLON,      
JRNL        AUTH 2 N.PROISY,G.ADDISON,J.ELLARD,N.PITON,S.TAYLOR,M.CHERRY,       
JRNL        AUTH 3 M.FISHER,K.BOXALL,S.BURNS,M.I.WALTON,I.M.WESTWOOD,A.HAYES,   
JRNL        AUTH 4 P.EVE,M.VALENTI,A.DE HAVEN BRANDON,G.BOX,R.L.M.VAN MONTFORT, 
JRNL        AUTH 5 D.H.WILLIAMS,G.W.AHERNE,F.I.RAYNAUD,S.A.ECCLES,M.D.GARRETT,  
JRNL        AUTH 6 I.COLLINS                                                    
JRNL        TITL   STRUCTURE-GUIDED EVOLUTION OF POTENT AND SELECTIVE CHK1      
JRNL        TITL 2 INHIBITORS THROUGH SCAFFOLD MORPHING.                        
JRNL        REF    J.MED.CHEM.                   V.  54  8328 2011              
JRNL        REFN                   ISSN 0022-2623                               
JRNL        PMID   22111927                                                     
JRNL        DOI    10.1021/JM2007326                                            
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.-M.J.CHEUNG,             
REMARK   1  AUTH 3 R.VAN MONTFORT,D.WILLIAMS,G.W.AHERNE,M.D.GARRETT,J.READER,   
REMARK   1  AUTH 4 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   1 REFERENCE 2                                                          
REMARK   1  AUTH   T.P.MATTHEWS,T.MCHARDY,S.KLAIR,K.BOXALL,M.FISHER,M.CHERRY,   
REMARK   1  AUTH 2 C.E.ALLEN,G.J.ADDISON,J.ELLARD,G.W.AHERNE,I.M.WESTWOOD,      
REMARK   1  AUTH 3 R.L.M.VAN MONTFORT,M.D.GARRETT,J.C.READER,I.COLLINS          
REMARK   1  TITL   DESIGN AND EVALUATION OF 3,6-DI(HETERO)ARYL                  
REMARK   1  TITL 2 IMIDAZO(1,2-A)PYRAZINES AS INHIBITORS OF CHECKPOINT AND      
REMARK   1  TITL 3 OTHER KINASES                                                
REMARK   1  REF    BIOORG.MED.CHEM.LETT.         V.  20  4045 2010              
REMARK   1  REFN                   ISSN 0960-894X                               
REMARK   1  PMID   20561787                                                     
REMARK   1  DOI    10.1016/J.BMCL.2010.05.096                                   
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.01 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 : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.01                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 37.14                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.350                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 22125                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.182                           
REMARK   3   R VALUE            (WORKING SET) : 0.180                           
REMARK   3   FREE R VALUE                     : 0.222                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1123                            
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 37.1472 -  4.0106    0.91     2505   144  0.1770 0.2105        
REMARK   3     2  4.0106 -  3.1839    0.95     2560   154  0.1656 0.2266        
REMARK   3     3  3.1839 -  2.7816    0.97     2599   160  0.1683 0.2062        
REMARK   3     4  2.7816 -  2.5273    0.97     2637   128  0.1692 0.2079        
REMARK   3     5  2.5273 -  2.3462    0.98     2670   141  0.1771 0.2157        
REMARK   3     6  2.3462 -  2.2079    0.99     2693   122  0.1756 0.2359        
REMARK   3     7  2.2079 -  2.0973    0.99     2663   138  0.2162 0.2342        
REMARK   3     8  2.0973 -  2.0060    0.99     2675   136  0.2689 0.3124        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.10                                          
REMARK   3   SHRINKAGE RADIUS   : 0.83                                          
REMARK   3   K_SOL              : 0.41                                          
REMARK   3   B_SOL              : 51.10                                         
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.280            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.670           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 27.07                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 35.80                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -6.90330                                             
REMARK   3    B22 (A**2) : 2.08370                                              
REMARK   3    B33 (A**2) : 4.81960                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.25170                                              
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           2146                                  
REMARK   3   ANGLE     :  1.008           2897                                  
REMARK   3   CHIRALITY :  0.065            310                                  
REMARK   3   PLANARITY :  0.007            369                                  
REMARK   3   DIHEDRAL  : 12.932            812                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 2                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: CHAIN A AND (RESSEQ 7:52)                              
REMARK   3    ORIGIN FOR THE GROUP (A):  11.1994  -3.0358   1.9390              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.6034 T22:   0.6363                                     
REMARK   3      T33:   0.2375 T12:  -0.0390                                     
REMARK   3      T13:  -0.0414 T23:  -0.0784                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.5544 L22:   0.3249                                     
REMARK   3      L33:   0.6846 L12:  -0.0527                                     
REMARK   3      L13:  -0.2714 L23:  -0.3943                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.1829 S12:   0.0221 S13:  -0.0878                       
REMARK   3      S21:   0.2823 S22:  -0.0655 S23:   0.0514                       
REMARK   3      S31:   0.1785 S32:  -0.1855 S33:   0.0137                       
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    SELECTION: CHAIN A AND (RESSEQ 53:270)                            
REMARK   3    ORIGIN FOR THE GROUP (A):  15.8467   4.5900  26.7989              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0922 T22:   0.0735                                     
REMARK   3      T33:   0.0894 T12:   0.0065                                     
REMARK   3      T13:  -0.0004 T23:   0.0072                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.2265 L22:   1.2812                                     
REMARK   3      L33:   0.9302 L12:   0.0446                                     
REMARK   3      L13:  -0.3977 L23:  -0.0537                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0365 S12:   0.0326 S13:  -0.0702                       
REMARK   3      S21:  -0.0947 S22:  -0.0346 S23:   0.0241                       
REMARK   3      S31:   0.0498 S32:  -0.0698 S33:   0.0209                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: RESIDUES 1-6, 43-51, 77, 78, 271- -289    
REMARK   3  ARE DISORDERED                                                      
REMARK   4                                                                      
REMARK   4 2YM6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 06-JUN-11.                  
REMARK 100 THE DEPOSITION ID IS D_1290048552.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 17-AUG-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   : 22144                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.010                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 44.950                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.500                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.0                               
REMARK 200  DATA REDUNDANCY                : 2.600                              
REMARK 200  R MERGE                    (I) : 0.07000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 8.8000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.01                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.11                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.40                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.41000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.800                              
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   (%): 58.20                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.94                     
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       32.96500            
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     VAL A     6                                                      
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     ASN A    51                                                      
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     GLU A  17    CG   CD   OE1  OE2                                  
REMARK 470     TYR A  20    CG   CD1  CD2  CE1  CE2  CZ   OH                    
REMARK 470     LYS A 232    CD   CE   NZ                                        
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    ASN A  63       89.47   -150.38                                   
REMARK 500    ASP A  99       -0.78     65.84                                   
REMARK 500    ARG A 129       -2.96     77.01                                   
REMARK 500    ASP A 130       47.53   -149.98                                   
REMARK 500    ASP A 148       92.10     71.75                                   
REMARK 500    ASN A 165       -8.74   -141.30                                   
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 YM6 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 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 1276                
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: 2YER   RELATED DB: PDB                                   
REMARK 900 SYNTHESIS AND EVALUATION OF TRIAZOLONES AS CHECKPOINT KINASE 1       
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: 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: 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: 2YDJ   RELATED DB: PDB                                   
REMARK 900 DISCOVERY OF CHECKPOINT KINASE INHIBITOR AZD7762 BY STRUCTURE BASED  
REMARK 900 DESIGN AND OPTIMIZATION OF THIOPHENE CARBOXAMIDE UREAS               
REMARK 900 RELATED ID: 2YM5   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 (CHK1) IN COMPLEX WITH      
REMARK 900 INHIBITORS                                                           
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: 2YDI   RELATED DB: PDB                                   
REMARK 900 DISCOVERY OF CHECKPOINT KINASE INHIBITOR AZD7762 BY STRUCTURE BASED  
REMARK 900 DESIGN AND OPTIMIZATION OF THIOPHENE CARBOXAMIDE UREAS               
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: 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: 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: 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: 1ZLT   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF CHK1 COMPLEXED WITH A HYMENALDISINEANALOG       
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: 2YM4   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 (CHK1) IN COMPLEX WITH      
REMARK 900 INHIBITORS                                                           
REMARK 900 RELATED ID: 2YEX   RELATED DB: PDB                                   
REMARK 900 SYNTHESIS AND EVALUATION OF TRIAZOLONES AS CHECKPOINT KINASE 1       
REMARK 900 INHIBITORS                                                           
REMARK 900 RELATED ID: 2YM3   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 (CHK1) IN COMPLEX WITH      
REMARK 900 INHIBITORS                                                           
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: 1ZYS   RELATED DB: PDB                                   
REMARK 900 CO-CRYSTAL STRUCTURE OF CHECKPOINT KINASE CHK1 WITH APYRROLO-        
REMARK 900 PYRIDINE INHIBITOR                                                   
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: 2YDK   RELATED DB: PDB                                   
REMARK 900 DISCOVERY OF CHECKPOINT KINASE INHIBITOR AZD7762 BY STRUCTURE BASED  
REMARK 900 DESIGN AND OPTIMIZATION OF THIOPHENE CARBOXAMIDE UREAS               
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: 2XEY   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 (CHK1) IN COMPLEX WITH      
REMARK 900 INHIBITORS                                                           
REMARK 900 RELATED ID: 2YM7   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 (CHK1) IN COMPLEX WITH      
REMARK 900 INHIBITORS                                                           
REMARK 900 RELATED ID: 2YM8   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF CHECKPOINT KINASE 1 (CHK1) IN COMPLEX WITH      
REMARK 900 INHIBITORS                                                           
DBREF  2YM6 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    YM6  A1271      21                                                       
HET    EDO  A1272       4                                                       
HET    EDO  A1273       4                                                       
HET    EDO  A1274       4                                                       
HET    EDO  A1275       4                                                       
HET    EDO  A1276       4                                                       
HETNAM     YM6 1-[(2R)-4-(9H-PYRIDO[4',3':4,5]PYRROLO[2,3-D]PYRIMIDIN-          
HETNAM   2 YM6  4-YL)MORPHOLIN-2-YL]METHANAMINE                                 
HETNAM     EDO 1,2-ETHANEDIOL                                                   
HETSYN     EDO ETHYLENE GLYCOL                                                  
FORMUL   2  YM6    C14 H16 N6 O                                                 
FORMUL   3  EDO    5(C2 H6 O2)                                                  
FORMUL   8  HOH   *184(H2 O)                                                    
HELIX    1   1 ILE A   52  LEU A   62  1                                  11    
HELIX    2   2 LEU A   92  ILE A   96  5                                   5    
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 GLU A  22  ASN A  28 -1  O  VAL A  23   N  LEU A  15           
SHEET    3  AA 5 ALA A  34  VAL A  40 -1  O  VAL A  35   N  ALA A  26           
SHEET    4  AA 5 GLN A  80  GLU A  85 -1  O  GLN A  80   N  VAL A  40           
SHEET    5  AA 5 PHE A  70  ARG A  75 -1  N  TYR A  71   O  PHE A  83           
SHEET    1  AB 2 ILE A 126  THR A 127  0                                        
SHEET    2  AB 2 THR A 153  VAL A 154 -1  O  THR A 153   N  THR A 127           
SHEET    1  AC 2 LEU A 136  LEU A 138  0                                        
SHEET    2  AC 2 LEU A 144  ILE A 146 -1  O  LYS A 145   N  LEU A 137           
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         5.95                     
SITE     1 AC1 12 LEU A  15  GLY A  16  ALA A  36  VAL A  68                    
SITE     2 AC1 12 LEU A  84  GLU A  85  CYS A  87  GLU A  91                    
SITE     3 AC1 12 GLU A 134  LEU A 137  HOH A2090  HOH A2181                    
SITE     1 AC2  4 LEU A 206  ASP A 209  EDO A1276  HOH A2136                    
SITE     1 AC3  3 ARG A  29  HIS A 185  HOH A2128                               
SITE     1 AC4  5 LYS A 132  THR A 170  HOH A2085  HOH A2182                    
SITE     2 AC4  5 HOH A2183                                                     
SITE     1 AC5  5 TRP A 221  LYS A 224  HIS A 243  LEU A 246                    
SITE     2 AC5  5 HOH A2184                                                     
SITE     1 AC6  6 GLU A 205  LEU A 206  PRO A 207  GLU A 217                    
SITE     2 AC6  6 ASN A 229  EDO A1272                                          
CRYST1   45.060   65.930   58.150  90.00  93.96  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      0.022193  0.000000  0.001536        0.00000                         
SCALE2      0.000000  0.015168  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.017238        0.00000