4ARK

CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF HUMAN MAP KINASE KINASE 1 (MEK1) IN COMPLEX WITH A SMALL MOLECULE INHIBITOR AND ADP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.172 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Optimization of Allosteric Mek Inhibitors - Part 1: Venturing Into Unexplored Sar Territories

Hartung, I.V.Hitchcock, M.Puehler, F.Neuhaus, R.Scholz, A.Hammer, S.Petersen, K.Siemeister, G.Brittain, D.Hillig, R.C.

(2013) Bioorg.Med.Chem.Lett. 23: 2384

  • DOI: 10.1016/j.bmcl.2013.02.028

  • PubMed Abstract: 
  • Using PD325901 as a starting point for identifying novel allosteric MEK inhibitors with high cell potency and long-lasting target inhibition in vivo, truncation of its hydroxamic ester headgroup was combined with incorporation of alkyl and aryl ether ...

    Using PD325901 as a starting point for identifying novel allosteric MEK inhibitors with high cell potency and long-lasting target inhibition in vivo, truncation of its hydroxamic ester headgroup was combined with incorporation of alkyl and aryl ethers at the neighboring ring position. Whereas alkoxy side chains did not yield sufficient levels of cell potency, specifically substituted aryloxy groups allowed for high enzymatic and cellular potencies. Sulfamide 28 was identified as a highly potent MEK inhibitor with nanomolar cell potency against B-RAF (V600E) as well as Ras-mutated cell lines, high metabolic stability and resulting long half-lives. It was efficacious against B-RAF as well as K-Ras driven xenograft models and showed-despite being orally bioavailable and not a P-glycoprotein substrate-much lower brain/plasma exposure ratios than PD325901.


    Organizational Affiliation

    Medicinal Chemistry, Bayer HealthCare AG, 13353 Berlin, Germany. ingo.hartung@bayer.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEIN KINASE KINASE 1
A
341Homo sapiensMutation(s): 0 
Gene Names: MAP2K1 (MEK1, PRKMK1)
EC: 2.7.12.2
Find proteins for Q02750 (Homo sapiens)
Go to Gene View: MAP2K1
Go to UniProtKB:  Q02750
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
M3K
Query on M3K

Download SDF File 
Download CCD File 
A
2-([3R-3,4-dihydroxybutyl]oxy)-4-fluoro-6-[(2-fluoro-4-iodophenyl)amino]benzamide
C17 H17 F2 I N2 O4
HNTGGMMWHHPHAE-LLVKDONJSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
M3KIC50: 63 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.172 
  • Space Group: P 62
Unit Cell:
Length (Å)Angle (°)
a = 82.411α = 90.00
b = 82.411β = 90.00
c = 130.238γ = 120.00
Software Package:
Software NamePurpose
REFMACphasing
MOSFLMdata reduction
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2013-04-03
    Type: Database references
  • Version 1.2: 2013-04-17
    Type: Database references
  • Version 1.3: 2016-12-14
    Type: Data collection