Journal
NATURE CELL BIOLOGY
Volume 8, Issue 12, Pages 1348-U19Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncb1499
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Funding
- NCI NIH HHS [CA63230] Funding Source: Medline
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'inactivator' BH3-only molecules including BAD, NOXA, BMF, BIK/BLK and HRK/DP5. BAD displaces tBID, BIM or PUMA from BCL-2-BCL-X-L to activate BAX-BAK, whereas NOXA specifically antagonizes MCL-1. Coexpression of BAD and NOXA killed wild-type but not Bax, Bak doubly deficient cells or Puma deficient cells with Bim knockdown, indicating that activator BH3-only molecules function downstream of inactivator BH3-only molecules to activate BAX-BAK. Our data establish a hierarchical regulation of mitochondrion-dependent apoptosis by various BCL-2 subfamilies.
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