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Cited by 287

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Survival factor-induced extracellular signal-regulated kinase phosphorylates BIM, inhibiting its association with BAX and proapoptotic activity

Open access
Harada, Hisashi, Quearry, Bonnie, Ruiz-Vela, Antonio, Korsmeyer, Stanley J.·2004·Proceedings of the National Academy of Sciences

Abstract

The “BH3-only” proapoptotic BCL-2 family members initiate the intrinsic apoptotic pathway. A small interfering RNA knockdown of BIM confirms this BH3-only member is important for the cytokine-mediated homeostasis of hematopoietic cells. We show here that the phosphorylation status of BIM controls its proapoptotic activity. IL-3, a hematopoietic survival factor, induces extracellular signal-regulated kinase/mitogen-activated protein kinase-mediated phosphorylation of BIM on three serine sites (S55, S65, and S100). After IL-3 withdrawal, only nonphosphorylated BIM interacts with the multidomain proapoptotic effector BAX. Phosphorylation of BIM on exposure of cells to IL-3 dramatically reduces the BIM/BAX interaction. A nonphosphorylatable BIM molecule (S55A, S65A, and S100A) demonstrates enhanced interaction with BAX and enhanced proapoptotic activity. Thus, ERK/mitogen-activated protein kinase-dependent phosphorylation of BIM in response to survival factor regulates BIM/BAX interaction and the pro-death activity of BIM.

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Metadata

Authors
Harada, H., Quearry, B., Ruiz-Vela, A., & Korsmeyer, S. J.
Venue
Proceedings of the National Academy of Sciences
Published
2004-10-14
Volume
101
Issue
43
Pages
15313-15317
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2121796473
Cited by
287
References
3
FWCI
9.84
Type
journal article
Language
en
Open access
green

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