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Database: PDB
Entry: 4EK4
LinkDB: 4EK4
Original site: 4EK4 
HEADER    TRANSFERASE/TRANSFERASE INHIBITOR       09-APR-12   4EK4              
TITLE     CRYSTAL STRUCTURE OF THE CDK2 IN COMPLEX WITH AMINOPYRAZOLE INHIBITOR 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CYCLIN-DEPENDENT KINASE 2;                                 
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: CELL DIVISION PROTEIN KINASE 2, P33 PROTEIN KINASE;         
COMPND   5 EC: 2.7.11.22;                                                       
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: CDK2, CDKN2;                                                   
SOURCE   6 EXPRESSION_SYSTEM: TRICHOPLUSIA NI;                                  
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 7111;                                       
SOURCE   8 EXPRESSION_SYSTEM_CELL_LINE: HIGH-FIVE;                              
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: BACULOVIRUS;                          
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PFB1                                      
KEYWDS    ALPHA AND BETA PROTEIN (A+B), TRANSFERASE-TRANSFERASE INHIBITOR       
KEYWDS   2 COMPLEX                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Y.N.KANG,J.A.STUCKEY                                                  
REVDAT   2   08-MAY-13 4EK4    1       TITLE                                    
REVDAT   1   01-MAY-13 4EK4    0                                                
JRNL        AUTH   Y.N.KANG,J.A.STUCKEY                                         
JRNL        TITL   CRYSTAL STRUCTURE OF THE CDK2 IN COMPLEX WITH AMINOPYRAZOLE  
JRNL        TITL 2 INHIBITOR                                                    
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.26 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0109                                      
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.26                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 22.05                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 75028                          
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) : 0.158                           
REMARK   3   R VALUE            (WORKING SET) : 0.156                           
REMARK   3   FREE R VALUE                     : 0.184                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3774                            
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) : 1.26                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.29                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 5115                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 97.14                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2090                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 261                          
REMARK   3   BIN FREE R VALUE                    : 0.2200                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2303                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 21                                      
REMARK   3   SOLVENT ATOMS            : 218                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 18.87                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.10000                                             
REMARK   3    B22 (A**2) : 0.12000                                              
REMARK   3    B33 (A**2) : -0.02000                                             
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): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.047         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.026         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.287         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.969                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.958                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2615 ; 0.015 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3597 ; 1.620 ; 1.990       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   352 ; 5.184 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   114 ;38.565 ;23.421       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   484 ;13.946 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    18 ;14.861 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   404 ; 0.108 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1996 ; 0.010 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
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):  1556 ; 1.894 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2570 ; 2.964 ; 2.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1059 ; 3.444 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   994 ; 4.973 ; 4.500       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  2615 ; 1.693 ; 3.000       
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  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : 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   4                                                                      
REMARK   4 4EK4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-APR-12.                  
REMARK 100 THE RCSB ID CODE IS RCSB071718.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 17-OCT-09                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.8                                
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 21-ID-G                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97856                            
REMARK 200  MONOCHROMATOR                  : DIAMOND [111]                      
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 300 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 75105                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.260                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.4                               
REMARK 200  DATA REDUNDANCY                : 7.000                              
REMARK 200  R MERGE                    (I) : 0.04300                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 16.6000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.26                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.28                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.90                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.33700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
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: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 39.78                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.04                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 15-20% PEG3350, 0.2M AMMONIUM ACETATE,   
REMARK 280  0.1M HEPES, PH 7.8, VAPOR DIFFUSION, SITTING 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       26.71000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       36.30350            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       35.81300            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       36.30350            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       26.71000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       35.81300            
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 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     ARG A    36                                                      
REMARK 465     LEU A    37                                                      
REMARK 465     ASP A    38                                                      
REMARK 465     THR A    39                                                      
REMARK 465     GLU A    40                                                      
REMARK 465     THR A    41                                                      
REMARK 465     GLU A    42                                                      
REMARK 465     GLY A    43                                                      
REMARK 465     VAL A    44                                                      
REMARK 465     ARG A   297                                                      
REMARK 465     LEU A   298                                                      
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     HIS A 295    CG   ND1  CD2  CE1  NE2                             
REMARK 470     LEU A 296    C    O    CD2                                       
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   OG   SER A   261     O    HOH A   431     2454     1.89            
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 126      -14.27     82.79                                   
REMARK 500    HIS A 161       -0.11     79.35                                   
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 A 611        DISTANCE =  6.06 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA A 304  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 256   OD2                                                    
REMARK 620 2 HOH A 503   O    73.7                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA A 302  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH A 485   O                                                      
REMARK 620 2 GLU A 195   OE2 120.0                                              
REMARK 620 3 HOH A 418   O   134.7  93.0                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA A 306  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  68   OD1                                                    
REMARK 620 2 VAL A  69   O   114.8                                              
REMARK 620 N                    1                                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 1CK A 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 302                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 303                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 304                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 305                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 306                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4EK3   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF APO CDK2                                        
REMARK 900 RELATED ID: 4EK5   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4EK6   RELATED DB: PDB                                   
DBREF  4EK4 A    1   298  UNP    P24941   CDK2_HUMAN       1    298             
SEQADV 4EK4 ACE A    0  UNP  P24941              ACETYLATION                    
SEQRES   1 A  299  ACE MET GLU ASN PHE GLN LYS VAL GLU LYS ILE GLY GLU          
SEQRES   2 A  299  GLY THR TYR GLY VAL VAL TYR LYS ALA ARG ASN LYS LEU          
SEQRES   3 A  299  THR GLY GLU VAL VAL ALA LEU LYS LYS ILE ARG LEU ASP          
SEQRES   4 A  299  THR GLU THR GLU GLY VAL PRO SER THR ALA ILE ARG GLU          
SEQRES   5 A  299  ILE SER LEU LEU LYS GLU LEU ASN HIS PRO ASN ILE VAL          
SEQRES   6 A  299  LYS LEU LEU ASP VAL ILE HIS THR GLU ASN LYS LEU TYR          
SEQRES   7 A  299  LEU VAL PHE GLU PHE LEU HIS GLN ASP LEU LYS LYS PHE          
SEQRES   8 A  299  MET ASP ALA SER ALA LEU THR GLY ILE PRO LEU PRO LEU          
SEQRES   9 A  299  ILE LYS SER TYR LEU PHE GLN LEU LEU GLN GLY LEU ALA          
SEQRES  10 A  299  PHE CYS HIS SER HIS ARG VAL LEU HIS ARG ASP LEU LYS          
SEQRES  11 A  299  PRO GLN ASN LEU LEU ILE ASN THR GLU GLY ALA ILE LYS          
SEQRES  12 A  299  LEU ALA ASP PHE GLY LEU ALA ARG ALA PHE GLY VAL PRO          
SEQRES  13 A  299  VAL ARG THR TYR THR HIS GLU VAL VAL THR LEU TRP TYR          
SEQRES  14 A  299  ARG ALA PRO GLU ILE LEU LEU GLY CYS LYS TYR TYR SER          
SEQRES  15 A  299  THR ALA VAL ASP ILE TRP SER LEU GLY CYS ILE PHE ALA          
SEQRES  16 A  299  GLU MET VAL THR ARG ARG ALA LEU PHE PRO GLY ASP SER          
SEQRES  17 A  299  GLU ILE ASP GLN LEU PHE ARG ILE PHE ARG THR LEU GLY          
SEQRES  18 A  299  THR PRO ASP GLU VAL VAL TRP PRO GLY VAL THR SER MET          
SEQRES  19 A  299  PRO ASP TYR LYS PRO SER PHE PRO LYS TRP ALA ARG GLN          
SEQRES  20 A  299  ASP PHE SER LYS VAL VAL PRO PRO LEU ASP GLU ASP GLY          
SEQRES  21 A  299  ARG SER LEU LEU SER GLN MET LEU HIS TYR ASP PRO ASN          
SEQRES  22 A  299  LYS ARG ILE SER ALA LYS ALA ALA LEU ALA HIS PRO PHE          
SEQRES  23 A  299  PHE GLN ASP VAL THR LYS PRO VAL PRO HIS LEU ARG LEU          
HET    ACE  A   0       3                                                       
HET    1CK  A 301      16                                                       
HET     NA  A 302       1                                                       
HET     NA  A 303       1                                                       
HET     NA  A 304       1                                                       
HET     NA  A 305       1                                                       
HET     NA  A 306       1                                                       
HETNAM     ACE ACETYL GROUP                                                     
HETNAM     1CK 4-BROMO-N-(5-METHYL-1H-PYRAZOL-3-YL)BENZAMIDE                    
HETNAM      NA SODIUM ION                                                       
FORMUL   1  ACE    C2 H4 O                                                      
FORMUL   2  1CK    C11 H10 BR N3 O                                              
FORMUL   3   NA    5(NA 1+)                                                     
FORMUL   8  HOH   *218(H2 O)                                                    
HELIX    1   1 PRO A   45  LEU A   55  1                                  11    
HELIX    2   2 LYS A   56  LEU A   58  5                                   3    
HELIX    3   3 LEU A   87  SER A   94  1                                   8    
HELIX    4   4 PRO A  100  HIS A  121  1                                  22    
HELIX    5   5 LYS A  129  GLN A  131  5                                   3    
HELIX    6   6 GLY A  147  GLY A  153  1                                   7    
HELIX    7   7 ALA A  170  LEU A  175  1                                   6    
HELIX    8   8 THR A  182  ARG A  199  1                                  18    
HELIX    9   9 SER A  207  GLY A  220  1                                  14    
HELIX   10  10 GLY A  229  MET A  233  5                                   5    
HELIX   11  11 ASP A  247  VAL A  252  1                                   6    
HELIX   12  12 ASP A  256  LEU A  267  1                                  12    
HELIX   13  13 SER A  276  ALA A  282  1                                   7    
HELIX   14  14 HIS A  283  GLN A  287  5                                   5    
SHEET    1   A 5 PHE A   4  GLU A  12  0                                        
SHEET    2   A 5 VAL A  17  ASN A  23 -1  O  LYS A  20   N  VAL A   7           
SHEET    3   A 5 VAL A  29  ILE A  35 -1  O  LEU A  32   N  TYR A  19           
SHEET    4   A 5 LYS A  75  GLU A  81 -1  O  LEU A  76   N  ILE A  35           
SHEET    5   A 5 LEU A  66  THR A  72 -1  N  ILE A  70   O  TYR A  77           
SHEET    1   B 3 GLN A  85  ASP A  86  0                                        
SHEET    2   B 3 LEU A 133  ILE A 135 -1  O  ILE A 135   N  GLN A  85           
SHEET    3   B 3 ILE A 141  LEU A 143 -1  O  LYS A 142   N  LEU A 134           
LINK         C   ACE A   0                 N   MET A   1     1555   1555  1.34  
LINK         OD2BASP A 256                NA    NA A 304     1555   1555  2.19  
LINK         OD2AASP A 256                NA    NA A 304     1555   1555  2.42  
LINK        NA    NA A 302                 O   HOH A 485     1555   1555  2.48  
LINK         OE2 GLU A 195                NA    NA A 302     1555   1555  2.60  
LINK         OD1 ASP A  68                NA    NA A 306     1555   1555  2.66  
LINK         OD2 ASP A  68                NA    NA A 305     1555   1555  2.69  
LINK         OE2 GLU A 208                NA    NA A 303     1555   1555  2.70  
LINK        NA    NA A 304                 O   HOH A 503     1555   1555  2.85  
LINK         O   VAL A  69                NA    NA A 306     1555   1555  3.08  
LINK        NA    NA A 302                 O   HOH A 418     1555   1555  3.13  
CISPEP   1 PRO A  253    PRO A  254          0         3.79                     
SITE     1 AC1 13 ILE A  10  ALA A  31  LYS A  33  PHE A  80                    
SITE     2 AC1 13 GLU A  81  PHE A  82  LEU A  83  HIS A  84                    
SITE     3 AC1 13 GLN A  85  ASP A  86  LYS A  89  LEU A 134                    
SITE     4 AC1 13 HOH A 444                                                     
SITE     1 AC2  4 LYS A  88  TYR A 168  GLU A 195  HOH A 485                    
SITE     1 AC3  1 GLU A 208                                                     
SITE     1 AC4  5 ARG A  22  LYS A 105  ASP A 256  PHE A 285                    
SITE     2 AC4  5 HOH A 503                                                     
SITE     1 AC5  3 LEU A  67  ASP A  68  TYR A 179                               
SITE     1 AC6  3 LYS A  56  ASP A  68  VAL A  69                               
CRYST1   53.420   71.626   72.607  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      0.018720  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.013961  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013773        0.00000                         
HETATM    1  C   ACE A   0      14.159  -2.236  39.885  0.80 31.75           C  
ANISOU    1  C   ACE A   0     3724   3985   4353   -230   -253    614       C  
HETATM    2  O   ACE A   0      13.223  -1.660  40.459  1.00 30.77           O  
ANISOU    2  O   ACE A   0     3627   3750   4312   -255   -214    790       O  
HETATM    3  CH3 ACE A   0      15.436  -1.519  39.515  1.00 31.87           C  
ANISOU    3  CH3 ACE A   0     3818   3892   4397   -320   -211    679       C  
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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