Send to:

Choose Destination
See comment in PubMed Commons below
J Biol Chem. 1999 Oct 22;274(43):31108-13.

Regulation of bad phosphorylation and association with Bcl-x(L) by the MAPK/Erk kinase.

Author information

  • 1Jack Bell Research Centre, University of British Columbia, Vancouver, British Columbia V6H 3Z6, Canada.


Phosphorylation of the Bcl-2 family protein Bad may represent an important bridge between survival signaling by growth factor receptors and the prevention of apoptosis. Bad phosphorylation was examined following cytokine stimulation, which revealed phosphorylation on a critical residue, serine 112, in a MEK-dependent manner. Furthermore, Bad phosphorylation also increased on several sites distinct from serine 112 but could not be detected on serine 136, previously thought to be a protein kinase B/Akt-targeted residue. Serine 112 phosphorylation was shown to be absolutely required for dissociation of Bad from Bcl-x(L). These results demonstrate for the first time in mammalian cells the involvement of the Ras-MAPK pathway in the phosphorylation of Bad and the regulation of its function.

[PubMed - indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Write to the Help Desk