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Science. 2001 Sep 7;293(5536):1829-32.

Bmf: a proapoptotic BH3-only protein regulated by interaction with the myosin V actin motor complex, activated by anoikis.

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  • 1The Walter and Eliza Hall Institute of Medical Research, Melbourne, P.O. Royal Melbourne Hospital, 3050 VIC, Australia.

Erratum in

  • Science 2002 Aug 16;297(5584):1122.

Abstract

Bcl-2 family members bearing only the BH3 domain are essential inducers of apoptosis. We identified a BH3-only protein, Bmf, and show that its BH3 domain is required both for binding to prosurvival Bcl-2 proteins and for triggering apoptosis. In healthy cells, Bmf is sequestered to myosin V motors by association with dynein light chain 2. Certain damage signals, such as loss of cell attachment (anoikis), unleash Bmf, allowing it to translocate and bind prosurvival Bcl-2 proteins. Thus, at least two mammalian BH3-only proteins, Bmf and Bim, function to sense intracellular damage by their localization to distinct cytoskeletal structures.

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PMID:
11546872
[PubMed - indexed for MEDLINE]
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