5B2K

A crucial role of Cys218 in the stabilization of an unprecedented auto-inhibition form of MAP2K7


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.328 
  • R-Value Work: 0.270 
  • R-Value Observed: 0.273 

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This is version 1.2 of the entry. See complete history


Literature

A crucial role of Cys218 in configuring an unprecedented auto-inhibition form of MAP2K7

Sogabe, Y.Hashimoto, T.Matsumoto, T.Kirii, Y.Sawa, M.Kinoshita, T.

(2016) Biochem Biophys Res Commun 473: 476-481

  • DOI: 10.1016/j.bbrc.2016.03.036
  • Primary Citation of Related Structures:  
    5B2L, 5B2K, 5B2M

  • PubMed Abstract: 
  • Mitogen-activated protein kinase kinase 7 (MAP2K7) is an indispensable kinase of the c-Jun N-terminal kinase signal cascade and is rigorously regulated via phosphorylation. To investigate the regulatory mechanism of the inactive non-phosphorylated state of MAP2K7, the crystal structures of the wild-type and C218S mutant were solved ...

    Mitogen-activated protein kinase kinase 7 (MAP2K7) is an indispensable kinase of the c-Jun N-terminal kinase signal cascade and is rigorously regulated via phosphorylation. To investigate the regulatory mechanism of the inactive non-phosphorylated state of MAP2K7, the crystal structures of the wild-type and C218S mutant were solved. The wild-type apo-structure revealed an unprecedented auto-inhibition form that occluded the ATP site. This closed form was configured by the n-σ* interaction of Cys218, a non-conserved residue among the MAP2K family kinases, with Gly145 in the glycine-rich loop. The interaction was unaltered in the presence of an ATP analog, whereas the C218S mutation precluded the closed configuration. These structural insights are potentially valuable for drug discovery of highly selective MAP2K7 inhibitors.


    Organizational Affiliation

    Graduate School of Science, Osaka Prefecture University, Osaka, 599-8531, Japan. Electronic address: kinotk@b.s.osakafu-u.ac.jp.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Dual specificity mitogen-activated protein kinase kinase 7A324Homo sapiensMutation(s): 0 
Gene Names: MAP2K7JNKK2MEK7MKK7PRKMK7SKK4
EC: 2.7.12.2
UniProt & NIH Common Fund Data Resources
Find proteins for O14733 (Homo sapiens)
Explore O14733 
Go to UniProtKB:  O14733
PHAROS:  O14733
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.328 
  • R-Value Work: 0.270 
  • R-Value Observed: 0.273 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.394α = 90
b = 71.394β = 90
c = 261.996γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-04-06
    Type: Initial release
  • Version 1.1: 2016-05-04
    Changes: Database references
  • Version 1.2: 2020-02-26
    Changes: Data collection, Database references, Derived calculations