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Cited by 521

The DOI matches its Crossref record; 66 of the 66 references it cites were found in a registry or an index.

Bax/Bak promote sumoylation of DRP1 and its stable association with mitochondria during apoptotic cell death

Open access
Wasiak, Sylwia, Zunino, Rodolfo, McBride, Heidi M.·2007·The Journal of Cell Biology

Abstract

Dynamin-related protein 1 (DRP1) plays an important role in mitochondrial fission at steady state and during apoptosis. Using fluorescence recovery after photobleaching, we demonstrate that in healthy cells, yellow fluorescent protein (YFP)–DRP1 recycles between the cytoplasm and mitochondria with a half-time of 50 s. Strikingly, during apoptotic cell death, YFP-DRP1 undergoes a transition from rapid recycling to stable membrane association. The rapid cycling phase that characterizes the early stages of apoptosis is independent of Bax/Bak. However, after Bax recruitment to the mitochondrial membranes but before the loss of mitochondrial membrane potential, YFP-DRP1 becomes locked on the membrane, resulting in undetectable fluorescence recovery. This second phase in DRP1 cycling is dependent on the presence of Bax/Bak but independent of hFis1 and mitochondrial fragmentation. Coincident with Bax activation, we detect a Bax/Bak-dependent stimulation of small ubiquitin-like modifier-1 conjugation to DRP1, a modification that correlates with the stable association of DRP1 with mitochondrial membranes. Altogether, these data demonstrate that the apoptotic machinery regulates the biochemical properties of DRP1 during cell death.

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Crossref · 10.1083/jcb.200610042

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Metadata

Authors
Wasiak, S., Zunino, R., & McBride, H. M.
Venue
The Journal of Cell Biology
Published
2007-04-30
Volume
177
Issue
3
Pages
439-450
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2149128081
Cited by
521
References
66
FWCI
14.01
Type
journal article
Language
en
Open access
green

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