3P4K image
Deposition Date 2010-10-06
Release Date 2011-01-05
Last Version Date 2024-10-09
Entry Detail
PDB ID:
3P4K
Keywords:
TRANSFERASE
Title:
The third conformation of p38a MAP kinase observed in phosphorylated p38a and in solution
Biological Source:
Source Organism:
Mus musculus (Taxon ID: 10090)
(Taxon ID: )
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.30 Å
R-Value Free:
0.23
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 31 2 1
3P4K validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Mitogen-activated protein kinase 14
Gene (Uniprot):Mapk14
Mutations:S28A
Chain IDs:A
Chain Length:370
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P47811 Pfam ID:PF00069 EC:2.7.11.24
Polymer Type:polypeptide(L)
Molecule:MAP kinase 14
Chain IDs:B (auth: P)
Chain Length:11
Number of Molecules:1
Biological Source:
Primary Citation
The third conformation of p38a MAP kinase observed in phosphorylated p38a and in solution
Structure 18 1571 1578 (2010)
PMID: 21134636 DOI: 10.1016/j.str.2010.09.015

Abstact

MAPKs engage substrates, MAP2Ks, and phosphatases via a docking groove in the C-terminal domain of the kinase. Prior crystallographic studies on the unphosphorylated MAPKs p38α and ERK2 defined the docking groove and revealed long-range conformational changes affecting the activation loop and active site of the kinase induced by peptide. Solution NMR data presented here for unphosphorylated p38α with a MEK3b-derived peptide (p38α/pepMEK3b) validate these findings. Crystallograhic data from doubly phosphorylated active p38α (p38α/T∗GY∗/pepMEK3b) reveal a structure similar to unphosphorylated p38α/MEK3b, and distinct from phosphorylated p38γ (p38γ/T∗GY∗) and ERK2 (ERK2/T∗EY∗). The structure supports the idea that MAP kinases adopt three distinct conformations: unphosphorylated, phosphorylated, and a docking peptide-induced form.

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Primary Citation of related structures
3P4K