Activated ERKs phosphorylate RUNX2

Stable Identifier
R-HSA-9009208
Type
Reaction
Species
Homo sapiens
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RUNX2 is phosphorylated by activated ERKs (MAPK3 and MAPK1) on at least two conserved serine residues. ERK-mediated phosphorylation is not known to affect binding of RUNX2 to CBFB and is therefore shown to happen in the context of the RUNX2:CBFB complex. RUNX2 phosphorylated by ERKs shows enhanced binding to RUNX2 response elements in the osteocalcin (BGLAP) gene promoter, resulting in increased BGLAP gene transcription (Ge et al. 2009).

ERK-mediated phosphorylation of RUNX2 in response to FGF2 signaling is thought to promote RUNX2 isomerization by PIN1 prolyl isomerase, which facilitates EP300 (p300) mediated acetylation and stabilization of RUNX2 (Yoon et al. 2014).

Literature References
PubMed ID Title Journal Year
19801668 Identification and functional characterization of ERK/MAPK phosphorylation sites in the Runx2 transcription factor

Roca, H, Hatch, NE, Franceschi, RT, Yang, Q, Xiao, G, Ge, C, Jiang, D

J. Biol. Chem. 2009
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Catalyst Activity

protein serine/threonine kinase activity of p-T,Y MAPK dimers [nucleoplasm]

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