2P55

X-ray structure of the human mitogen-activated protein kinase kinase 1 (MEK1) in a complex with ligand and MgATP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

4-anilino-5-carboxamido-2-pyridone derivatives as noncompetitive inhibitors of mitogen-activated protein kinase kinase.

Spicer, J.A.Rewcastle, G.W.Kaufman, M.D.Black, S.L.Plummer, M.S.Denny, W.A.Quin, J.Shahripour, A.B.Barrett, S.D.Whitehead, C.E.Milbank, J.B.Ohren, J.F.Gowan, R.C.Omer, C.Camp, H.S.Esmaeil, N.Moore, K.Sebolt-Leopold, J.S.Pryzbranowski, S.Merriman, R.L.Ortwine, D.F.Warmus, J.S.Flamme, C.M.Pavlovsky, A.G.Tecle, H.

(2007) J Med Chem 50: 5090-5102

  • DOI: 10.1021/jm0704548
  • Primary Citation of Related Structures:  
    2P55

  • PubMed Abstract: 
  • A new series of MEK1 inhibitors, the 4-anilino-5-carboxamido-2-pyridones, were designed and synthesized using a combination of medicinal chemistry, computational chemistry, and structural elucidation. The effect of variation in the carboxamide side c ...

    A new series of MEK1 inhibitors, the 4-anilino-5-carboxamido-2-pyridones, were designed and synthesized using a combination of medicinal chemistry, computational chemistry, and structural elucidation. The effect of variation in the carboxamide side chain, substitution on the pyridone nitrogen, and replacement of the 4'-iodide were all investigated. This study afforded several compounds which were either equipotent or more potent than the clinical candidate CI-1040 (1) in an isolated enzyme assay, as well as murine colon carcinoma (C26) cells, as measured by suppression of phosphorylated ERK substrate. Most notably, pyridone 27 was found to be more potent than 1 in vitro and produced a 100% response rate at a lower dose than 1, when tested for in vivo efficacy in animals bearing C26 tumors.


    Organizational Affiliation

    Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand. j.spicer@auckland.ac.nz



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Dual specificity mitogen-activated protein kinase kinase 1A333Homo sapiensMutation(s): 0 
Gene Names: MAP2K1MEK1PRKMK1
EC: 2.7.12.2
Find proteins for Q02750 (Homo sapiens)
Explore Q02750 
Go to UniProtKB:  Q02750
NIH Common Fund Data Resources
PHAROS  Q02750
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download CCD File 
A
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
MRA
Query on MRA

Download CCD File 
A
2-[(4-ETHYNYL-2-FLUOROPHENYL)AMINO]-3,4-DIFLUORO-N-(2-HYDROXYETHOXY)BENZAMIDE
C17 H13 F3 N2 O3
AMNKRBRQQAMACZ-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.228 
  • Space Group: P 62
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.634α = 90
b = 81.634β = 90
c = 129.086γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-10-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance