Cited by 1,369Autophagy in Disease and TherapyParkinson's Disease Mechanisms and TreatmentsUbiquitin and proteasome pathways

Proteasome and p97 mediate mitophagy and degradation of mitofusins induced by Parkin

Open access
Tanaka, Atsushi, Cleland, Megan M., Xu, Shan, Narendra, Derek P., Suen, Der-Fen, Karbowski, Mariusz, Youle, Richard J.·2010·Journal of Cell Biology

Abstract

Damage to mitochondria can lead to the depolarization of the inner mitochondrial membrane, thereby sensitizing impaired mitochondria for selective elimination by autophagy. However, fusion of uncoupled mitochondria with polarized mitochondria can compensate for damage, reverse membrane depolarization, and obviate mitophagy. Parkin, an E3 ubiquitin ligase that is mutated in monogenic forms of Parkinson’s disease, was recently found to induce selective autophagy of damaged mitochondria. Here we show that ubiquitination of mitofusins Mfn1 and Mfn2, large GTPases that mediate mitochondrial fusion, is induced by Parkin upon membrane depolarization and leads to their degradation in a proteasome- and p97-dependent manner. p97, a AAA+ ATPase, accumulates on mitochondria upon uncoupling of Parkin-expressing cells, and both p97 and proteasome activity are required for Parkin-mediated mitophagy. After mitochondrial fission upon depolarization, Parkin prevents or delays refusion of mitochondria, likely by the elimination of mitofusins. Inhibition of Drp1-mediated mitochondrial fission, the proteasome, or p97 prevents Parkin-induced mitophagy.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1083/jcb.201007013

Cites

57 of 57 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Tanaka, A., Cleland, M. M., Xu, S., Narendra, D. P., Suen, D.-F., Karbowski, M., & Youle, R. J.
Affiliations
  • National Institutes of Health (US)
  • Biochemistry Section, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892 1
  • University of Maryland, Baltimore (US)
Corresponding author
Karbowski, Mariusz
Venue
Journal of Cell Biology
Published
2010-12-20
Volume
191
Issue
7
Pages
1367-1380
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2104412320
Cited by
1,369
References
57
Citations by year
2026: 48 · 2025: 58 · 2024: 68 · 2023: 68 · 2022: 84 · 2021: 108 · 2020: 111 · 2019: 101 · 2018: 78 · 2017: 85 · 2016: 99 · 2015: 85 · 2014: 111 · 2013: 110 · 2012: 97
FWCI
60.98
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Cell Biology (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • Japan Society for the Promotion of Science
  • National Institute of General Medical Sciences (R01GM083131)
  • National Institute of Neurological Disorders and Stroke
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
mitophagy, Parkin, mitofusins, Mfn1, mitofusin 2, proteasome, VCP, AAA+ ATPase, mitochondrial fusion, mitochondrial fission, Drp1, mitochondrial depolarization, ubiquitination, selective autophagy, Parkinson's disease, ubiquitin-proteasome system
MeSH terms
PTEN-Induced Putative Kinase, Adenosine Triphosphatases, Animals, Autophagy, Carbonyl Cyanide m-Chlorophenyl Hydrazone, Fibroblasts, HeLa Cells, Humans, Leupeptins, Membrane Fusion, Membrane Proteins, Microtubule-Associated Proteins, Mitochondria, Models, Biological, Nuclear Proteins, Protein Binding, Protein Kinases, Mice, Knockout, GTP Phosphohydrolases, Mitochondrial Proteins, Membrane Transport Proteins, Mitochondrial Membrane Transport Proteins, Dynamins, RNA, Small Interfering, Ubiquitin-Conjugating Enzymes, Ubiquitin-Protein Ligases, HCT116 Cells, Cell Line, Tumor, Proteasome Endopeptidase Complex, Mice, Membrane Potential, Mitochondrial, Ubiquitination, Proteasome Inhibitors

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review