PDB Short entry for 3E8N
HEADER    TRANSFERASE                             20-AUG-08   3E8N              
TITLE     X-RAY STRUCTURE OF THE HUMAN MITOGEN-ACTIVATED PROTEIN                
TITLE    2 KINASE KINASE 1 (MEK1) COMPLEXED WITH A POTENT INHIBITOR             
TITLE    3 RDEA119 AND MGATP                                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEIN KINASE          
COMPND   3 KINASE 1;                                                            
COMPND   4 CHAIN: A;                                                            
COMPND   5 SYNONYM: MAP KINASE KINASE 1, MAPKK 1, ERK ACTIVATOR KINASE          
COMPND   6 1, MAPK/ERK KINASE 1, MEK1;                                          
COMPND   7 EC: 2.7.12.2;                                                        
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_TAXID: 9606;                                                
SOURCE   4 GENE: MEK1;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET24B                                    
KEYWDS    PROTEIN KINASE-LIGAND-MGATP COMPLEX, RDEA119, RDEA-119,               
KEYWDS   2 MEK1, MEK1-RDEA119 COMPLEX, ACETYLATION, ATP-BINDING,                
KEYWDS   3 DISEASE MUTATION, KINASE, NUCLEOTIDE-BINDING,                        
KEYWDS   4 PHOSPHOPROTEIN, SERINE/THREONINE-PROTEIN KINASE,                     
KEYWDS   5 TRANSFERASE, TYROSINE-PROTEIN KINASE                                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.YAN,Z.M.WANG                                                        
REVDAT   2   15-SEP-09 3E8N    1       JRNL                                     
REVDAT   1   01-SEP-09 3E8N    0                                                
JRNL        AUTH   C.IVERSON,G.LARSON,C.LAI,L.T.YEH,C.DADSON,                   
JRNL        AUTH 2 P.WEINGARTEN,T.APPLEBY,T.VO,A.MADERNA,J.M.VERNIER,           
JRNL        AUTH 3 R.HAMATAKE,J.N.MINER,B.QUART                                 
JRNL        TITL   RDEA119/BAY 869766: A POTENT, SELECTIVE, ALLOSTERIC          
JRNL        TITL 2 INHIBITOR OF MEK1/2 FOR THE TREATMENT OF CANCER.             
JRNL        REF    CANCER RES.                   V.  69  6839 2009              
JRNL        REFN                   ISSN 0008-5472                               
JRNL        PMID   19706763                                                     
JRNL        DOI    10.1158/0008-5472.CAN-09-0679                                
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU,             
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 6.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 16933                          
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 SET) : 0.219                           
REMARK   3   FREE R VALUE                     : 0.252                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 1688                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2276                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 63                                      
REMARK   3   SOLVENT ATOMS            : 65                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.17300                                              
REMARK   3    B22 (A**2) : 0.17300                                              
REMARK   3    B33 (A**2) : -0.34600                                             
REMARK   3    B12 (A**2) : -0.12100                                             
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : NULL                            
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3E8N COMPLIES WITH FORMAT V. 3.20, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-SEP-08.                  
REMARK 100 THE RCSB ID CODE IS RCSB049013.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 13-MAR-06                          
REMARK 200  TEMPERATURE           (KELVIN) : 150                                
REMARK 200  PH                             : 7.8                                
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 RU300                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : OSMIC BLUE MIRROR                  
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 17113                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 99.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.1                               
REMARK 200  DATA REDUNDANCY                : 4.000                              
REMARK 200  R MERGE                    (I) : 0.12500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.7000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.59                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.36000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: PDB ENTRY 1S9J                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 63.19                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.34                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 20 MM HEPES, 150 MM NH4H2PO4, 0.5        
REMARK 280  MM EDTA, 2 MM TCEP, PH 7.8, VAPOR DIFFUSION, HANGING DROP,          
REMARK 280  TEMPERATURE 277K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 62                             
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   -X,-Y,Z                                                 
REMARK 290       5555   Y,-X+Y,Z+2/3                                            
REMARK 290       6555   X-Y,X,Z+1/3                                             
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       86.51867            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       43.25933            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       86.51867            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       43.25933            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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 300 REMARK: MEK1 IS A MONOMER IN SOLUTION AND IN THE ASYMMETRIC UNIT     
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 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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2080 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 27060 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -17.0 KCAL/MOL                        
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 350   BIOMT1   2 -1.000000  0.000000  0.000000       41.13050            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       71.24012            
REMARK 350   BIOMT3   2  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     PHE A   223                                                      
REMARK 465     GLY A   276                                                      
REMARK 465     CYS A   277                                                      
REMARK 465     GLN A   278                                                      
REMARK 465     VAL A   279                                                      
REMARK 465     GLU A   280                                                      
REMARK 465     GLY A   281                                                      
REMARK 465     ASP A   282                                                      
REMARK 465     ALA A   283                                                      
REMARK 465     ALA A   284                                                      
REMARK 465     GLU A   285                                                      
REMARK 465     THR A   286                                                      
REMARK 465     PRO A   287                                                      
REMARK 465     PRO A   288                                                      
REMARK 465     ARG A   289                                                      
REMARK 465     PRO A   290                                                      
REMARK 465     ARG A   291                                                      
REMARK 465     THR A   292                                                      
REMARK 465     PRO A   293                                                      
REMARK 465     GLY A   294                                                      
REMARK 465     ARG A   295                                                      
REMARK 465     PRO A   296                                                      
REMARK 465     LEU A   297                                                      
REMARK 465     SER A   298                                                      
REMARK 465     SER A   299                                                      
REMARK 465     TYR A   300                                                      
REMARK 465     GLY A   301                                                      
REMARK 465     MET A   302                                                      
REMARK 465     ASP A   303                                                      
REMARK 465     SER A   304                                                      
REMARK 465     ARG A   305                                                      
REMARK 465     GLN A   383                                                      
REMARK 465     PRO A   384                                                      
REMARK 465     SER A   385                                                      
REMARK 465     THR A   386                                                      
REMARK 465     PRO A   387                                                      
REMARK 465     THR A   388                                                      
REMARK 465     HIS A   389                                                      
REMARK 465     ALA A   390                                                      
REMARK 465     ALA A   391                                                      
REMARK 465     GLY A   392                                                      
REMARK 465     VAL A   393                                                      
REMARK 465     LEU A   394                                                      
REMARK 465     GLU A   395                                                      
REMARK 465     HIS A   396                                                      
REMARK 465     HIS A   397                                                      
REMARK 465     HIS A   398                                                      
REMARK 465     HIS A   399                                                      
REMARK 465     HIS A   400                                                      
REMARK 465     HIS A   401                                                      
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    SER A 135     -105.97   -108.98                                   
REMARK 500    GLU A 138      144.34   -175.26                                   
REMARK 500    ARG A 189      -13.10     83.67                                   
REMARK 500    ASP A 190       53.11   -148.43                                   
REMARK 500    SER A 241     -151.33   -158.36                                   
REMARK 500    LEU A 342       34.55    -91.25                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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                              MG A 500  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A 195   OD1                                                    
REMARK 620 2 ASP A 208   OD1 103.2                                              
REMARK 620 3 HOH A1002   O    92.9  82.9                                        
REMARK 620 4 ATP A 600   O2A 166.5  75.3  73.6                                  
REMARK 620 5 ATP A 600   O1B  94.5 150.5  72.7  82.0                            
REMARK 620 6 HOH A1003   O   115.2  83.7 151.0  78.1 109.9                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 500                  
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ATP A 600                 
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE VRA A1001                 
DBREF  3E8N A   62   393  UNP    Q02750   MP2K1_HUMAN     62    393             
SEQADV 3E8N MET A   61  UNP  Q02750              EXPRESSION TAG                 
SEQADV 3E8N LEU A  394  UNP  Q02750              EXPRESSION TAG                 
SEQADV 3E8N GLU A  395  UNP  Q02750              EXPRESSION TAG                 
SEQADV 3E8N HIS A  396  UNP  Q02750              EXPRESSION TAG                 
SEQADV 3E8N HIS A  397  UNP  Q02750              EXPRESSION TAG                 
SEQADV 3E8N HIS A  398  UNP  Q02750              EXPRESSION TAG                 
SEQADV 3E8N HIS A  399  UNP  Q02750              EXPRESSION TAG                 
SEQADV 3E8N HIS A  400  UNP  Q02750              EXPRESSION TAG                 
SEQADV 3E8N HIS A  401  UNP  Q02750              EXPRESSION TAG                 
SEQRES   1 A  341  MET GLU LEU LYS ASP ASP ASP PHE GLU LYS ILE SER GLU          
SEQRES   2 A  341  LEU GLY ALA GLY ASN GLY GLY VAL VAL PHE LYS VAL SER          
SEQRES   3 A  341  HIS LYS PRO SER GLY LEU VAL MET ALA ARG LYS LEU ILE          
SEQRES   4 A  341  HIS LEU GLU ILE LYS PRO ALA ILE ARG ASN GLN ILE ILE          
SEQRES   5 A  341  ARG GLU LEU GLN VAL LEU HIS GLU CYS ASN SER PRO TYR          
SEQRES   6 A  341  ILE VAL GLY PHE TYR GLY ALA PHE TYR SER ASP GLY GLU          
SEQRES   7 A  341  ILE SER ILE CYS MET GLU HIS MET ASP GLY GLY SER LEU          
SEQRES   8 A  341  ASP GLN VAL LEU LYS LYS ALA GLY ARG ILE PRO GLU GLN          
SEQRES   9 A  341  ILE LEU GLY LYS VAL SER ILE ALA VAL ILE LYS GLY LEU          
SEQRES  10 A  341  THR TYR LEU ARG GLU LYS HIS LYS ILE MET HIS ARG ASP          
SEQRES  11 A  341  VAL LYS PRO SER ASN ILE LEU VAL ASN SER ARG GLY GLU          
SEQRES  12 A  341  ILE LYS LEU CYS ASP PHE GLY VAL SER GLY GLN LEU ILE          
SEQRES  13 A  341  ASP SER MET ALA ASN SER PHE VAL GLY THR ARG SER TYR          
SEQRES  14 A  341  MET SER PRO GLU ARG LEU GLN GLY THR HIS TYR SER VAL          
SEQRES  15 A  341  GLN SER ASP ILE TRP SER MET GLY LEU SER LEU VAL GLU          
SEQRES  16 A  341  MET ALA VAL GLY ARG TYR PRO ILE PRO PRO PRO ASP ALA          
SEQRES  17 A  341  LYS GLU LEU GLU LEU MET PHE GLY CYS GLN VAL GLU GLY          
SEQRES  18 A  341  ASP ALA ALA GLU THR PRO PRO ARG PRO ARG THR PRO GLY          
SEQRES  19 A  341  ARG PRO LEU SER SER TYR GLY MET ASP SER ARG PRO PRO          
SEQRES  20 A  341  MET ALA ILE PHE GLU LEU LEU ASP TYR ILE VAL ASN GLU          
SEQRES  21 A  341  PRO PRO PRO LYS LEU PRO SER GLY VAL PHE SER LEU GLU          
SEQRES  22 A  341  PHE GLN ASP PHE VAL ASN LYS CYS LEU ILE LYS ASN PRO          
SEQRES  23 A  341  ALA GLU ARG ALA ASP LEU LYS GLN LEU MET VAL HIS ALA          
SEQRES  24 A  341  PHE ILE LYS ARG SER ASP ALA GLU GLU VAL ASP PHE ALA          
SEQRES  25 A  341  GLY TRP LEU CYS SER THR ILE GLY LEU ASN GLN PRO SER          
SEQRES  26 A  341  THR PRO THR HIS ALA ALA GLY VAL LEU GLU HIS HIS HIS          
SEQRES  27 A  341  HIS HIS HIS                                                  
HET     MG  A 500       1                                                       
HET    ATP  A 600      31                                                       
HET    VRA  A1001      31                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     ATP ADENOSINE-5'-TRIPHOSPHATE                                        
HETNAM     VRA N-{3,4-DIFLUORO-2-[(2-FLUORO-4-IODOPHENYL)AMINO]-6-              
HETNAM   2 VRA  METHOXYPHENYL}-1-[(2S)-2,3-                                     
HETNAM   3 VRA  DIHYDROXYPROPYL]CYCLOPROPANESULFONAMIDE                         
FORMUL   2   MG    MG 2+                                                        
FORMUL   3  ATP    C10 H16 N5 O13 P3                                            
FORMUL   4  VRA    C19 H20 F3 I N2 O5 S                                         
FORMUL   5  HOH   *65(H2 O)                                                     
HELIX    1   1 LYS A   64  ASP A   66  5                                   3    
HELIX    2   2 LYS A  104  GLN A  116  1                                  13    
HELIX    3   3 VAL A  117  CYS A  121  5                                   5    
HELIX    4   4 SER A  150  GLY A  159  1                                  10    
HELIX    5   5 PRO A  162  LYS A  185  1                                  24    
HELIX    6   6 LYS A  192  SER A  194  5                                   3    
HELIX    7   7 SER A  212  MET A  219  1                                   8    
HELIX    8   8 SER A  231  GLY A  237  1                                   7    
HELIX    9   9 VAL A  242  GLY A  259  1                                  18    
HELIX   10  10 ASP A  267  PHE A  275  1                                   9    
HELIX   11  11 ALA A  309  GLU A  320  1                                  12    
HELIX   12  12 SER A  331  LEU A  342  1                                  12    
HELIX   13  13 ASP A  351  VAL A  357  1                                   7    
HELIX   14  14 HIS A  358  GLU A  367  1                                  10    
HELIX   15  15 ASP A  370  ILE A  379  1                                  10    
SHEET    1   A 5 PHE A  68  ALA A  76  0                                        
SHEET    2   A 5 VAL A  81  HIS A  87 -1  O  SER A  86   N  GLU A  69           
SHEET    3   A 5 VAL A  93  HIS A 100 -1  O  LEU A  98   N  VAL A  81           
SHEET    4   A 5 GLU A 138  GLU A 144 -1  O  MET A 143   N  ALA A  95           
SHEET    5   A 5 PHE A 129  TYR A 134 -1  N  PHE A 133   O  SER A 140           
SHEET    1   B 2 ILE A 196  VAL A 198  0                                        
SHEET    2   B 2 ILE A 204  LEU A 206 -1  O  LYS A 205   N  LEU A 197           
LINK         OD1 ASN A 195                MG    MG A 500     1555   1555  1.89  
LINK         OD1 ASP A 208                MG    MG A 500     1555   1555  2.05  
LINK        MG    MG A 500                 O   HOH A1002     1555   1555  2.29  
LINK        MG    MG A 500                 O2A ATP A 600     1555   1555  2.32  
LINK        MG    MG A 500                 O1B ATP A 600     1555   1555  2.06  
LINK        MG    MG A 500                 O   HOH A1003     1555   1555  1.98  
CISPEP   1 ILE A  263    PRO A  264          0         0.38                     
SITE     1 AC1  5 ASN A 195  ASP A 208  ATP A 600  HOH A1002                    
SITE     2 AC1  5 HOH A1003                                                     
SITE     1 AC2 24 GLY A  77  ASN A  78  GLY A  80  VAL A  82                    
SITE     2 AC2 24 ALA A  95  LYS A  97  MET A 143  GLU A 144                    
SITE     3 AC2 24 MET A 146  SER A 150  GLN A 153  LYS A 192                    
SITE     4 AC2 24 SER A 194  ASN A 195  LEU A 197  ASP A 208                    
SITE     5 AC2 24  MG A 500  VRA A1001  HOH A1002  HOH A1003                    
SITE     6 AC2 24 HOH A1014  HOH A1030  HOH A1044  HOH A1066                    
SITE     1 AC3 13 GLY A  79  LYS A  97  LEU A 115  VAL A 127                    
SITE     2 AC3 13 ASP A 190  ASP A 208  PHE A 209  VAL A 211                    
SITE     3 AC3 13 SER A 212  LEU A 215  ATP A 600  HOH A1002                    
SITE     4 AC3 13 HOH A1022                                                     
CRYST1   82.261   82.261  129.778  90.00  90.00 120.00 P 62          6          
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      0.012156  0.007019  0.000000        0.00000                         
SCALE2      0.000000  0.014037  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007705        0.00000