3DY7

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

• PDB DOI: https://doi.org/10.2210/pdb3DY7/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-07-25 Released: 2009-06-16 
• Deposition Author(s): Ohren, J.F., Pavlovsky, A., Zhang, E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 
  0.269 (Depositor), 0.260 (DCC) 
• R-Value Work: 
  0.247 (Depositor), 0.250 (DCC) 
• R-Value Observed: 
  0.248 (Depositor) 

Starting Model: experimental

Literature

Beyond the MEK-pocket: can current MEK kinase inhibitors be utilized to synthesize novel type III NCKIs? Does the MEK-pocket exist in kinases other than MEK?

Tecle, H., Shao, J., Li, Y., Kothe, M., Kazmirski, S., Penzotti, J., Ding, Y.H., Ohren, J., Moshinsky, D., Coli, R., Jhawar, N., Bora, E., Jacques-O'Hagan, S., Wu, J.

(2009) Bioorg Med Chem Lett 19: 226-229

• PubMed: 19019675 
• DOI: https://doi.org/10.1016/j.bmcl.2008.10.108
• Primary Citation of Related Structures:  
  3DV3, 3DY7


• PubMed Abstract: 
  

  An approach and preliminary results for utilizing legacy MEK inhibitors as templates for a reiterative structural based design and synthesis of novel, type III NCKIs (non-classical kinase inhibitors) is described. Evidence is provided that the MEK-pocket or pockets closely related to it may exist in kinases other than MEK.

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Organizational Affiliation: 

Pfizer Global Research and Development, Research Technology Center, Cambridge, MA 02139, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 38.91 kDa 
• Atom Count: 2,093 
• Modelled Residue Count: 260 
• Deposited Residue Count: 341 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dual specificity mitogen-activated protein kinase kinase 1	A	341	Homo sapiens	Mutation(s): 0  Gene Names: MAP2K1, MEK1, PRKMK1 EC: 2.7.12.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q02750 (Homo sapiens) Explore Q02750  Go to UniProtKB:  Q02750
PHAROS:  Q02750 GTEx:  ENSG00000169032

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP	C [auth A]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
1CX	D [auth A]	(5S)-4,5-difluoro-6-[(2-fluoro-4-iodophenyl)imino]-N-(2-hydroxyethoxy)cyclohexa-1,3-diene-1-carboxamide C15 H12 F3 I N2 O3 BDLJJGJCIWWATJ-OOHURIHSSA-N
MG	B [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free:  0.269 (Depositor), 0.260 (DCC) 
• R-Value Work:  0.247 (Depositor), 0.250 (DCC) 
• R-Value Observed: 0.248 (Depositor) 

Space Group: P 6₂

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.754	α = 90
b = 81.754	β = 90
c = 128.893	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
ADSC	data collection
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-06-16 
Deposition Author(s): Ohren, J.F., Pavlovsky, A., Zhang, E.

Revision History  

• Version 1.0: 2009-06-16
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description