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Cited by 1,262

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Bid-induced Conformational Change of Bax Is Responsible for Mitochondrial Cytochrome c Release during Apoptosis

Open access
Desagher, Solange, Osen-Sand, Astrid, Nichols, Anthony, Eskes, Robert, Montessuit, Sylvie, Lauper, Sandra, Maundrell, Kinsey, Antonsson, Bruno, Martinou, Jean-Claude·1999·The Journal of Cell Biology

Abstract

Here we report that in staurosporine-induced apoptosis of HeLa cells, Bid, a BH3 domain containing protein, translocates from the cytosol to mitochondria. This event is associated with a change in conformation of Bax which leads to the unmasking of its NH2-terminal domain and is accompanied by the release of cytochrome c from mitochondria. A similar finding is reported for cerebellar granule cells undergoing apoptosis induced by serum and potassium deprivation. The Bax-conformational change is prevented by Bcl-2 and Bcl-xL but not by caspase inhibitors. Using isolated mitochondria and various BH3 mutants of Bid, we demonstrate that direct binding of Bid to Bax is a prerequisite for Bax structural change and cytochrome c release. Bcl-xL can inhibit the effect of Bid by interacting directly with Bax. Moreover, using mitochondria from Bax-deficient tumor cell lines, we show that Bid- induced release of cytochrome c is negligible when Bid is added alone, but dramatically increased when Bid and Bax are added together. Taken together, our results suggest that, during certain types of apoptosis, Bid translocates to mitochondria and binds to Bax, leading to a change in conformation of Bax and to cytochrome c release from mitochondria.

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Crossref · 10.1083/jcb.144.5.891

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Metadata

Authors
Desagher, S., Osen-Sand, A., Nichols, A., Eskes, R., Montessuit, S., Lauper, S., Maundrell, K., Antonsson, B., & Martinou, J.-C.
Venue
The Journal of Cell Biology
Published
1999-03-08
Volume
144
Issue
5
Pages
891-901
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2073028327
Cited by
1,262
References
1
FWCI
33.28
Type
journal article
Language
en
Open access
green

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