Cited by 735Parkinson's Disease Mechanisms and TreatmentsAutophagy in Disease and TherapyMitochondrial Function and Pathology

Drosophila Parkin requires PINK1 for mitochondrial translocation and ubiquitinates Mitofusin

Open access
Ziviani, Elena, Tao, Ran N., Whitworth, Alexander J.·2010·Proceedings of the National Academy of Sciences

Abstract

Loss of the E3 ubiquitin ligase Parkin causes early onset Parkinson's disease, a neurodegenerative disorder of unknown etiology. Parkin has been linked to multiple cellular processes including protein degradation, mitochondrial homeostasis, and autophagy; however, its precise role in pathogenesis is unclear. Recent evidence suggests that Parkin is recruited to damaged mitochondria, possibly affecting mitochondrial fission and/or fusion, to mediate their autophagic turnover. The precise mechanism of recruitment and the ubiquitination target are unclear. Here we show in Drosophila cells that PINK1 is required to recruit Parkin to dysfunctional mitochondria and promote their degradation. Furthermore, PINK1 and Parkin mediate the ubiquitination of the profusion factor Mfn on the outer surface of mitochondria. Loss of Drosophila PINK1 or parkin causes an increase in Mfn abundance in vivo and concomitant elongation of mitochondria. These findings provide a molecular mechanism by which the PINK1/Parkin pathway affects mitochondrial fission/fusion as suggested by previous genetic interaction studies. We hypothesize that Mfn ubiquitination may provide a mechanism by which terminally damaged mitochondria are labeled and sequestered for degradation by autophagy.

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 · 10.1073/pnas.0913485107

Cites

46 of 46 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?

  • Once activated, Parkin facilitates ubiquitination of numerous outer mitochondrial membrane proteins, including Mfn1, Mfn2, VDAC, Tom20, and Miro.

    “Once activated, Parkin has been reported to facilitate ubiquitination of numerous OMM proteins, including Mfn1 [126,127,128], Mfn2 [129], VDAC [130], Tom20 (translocase of the outer membrane 20) [121], and Miro [131].”

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
Ziviani, E., Tao, R. N., & Whitworth, A. J.
Affiliations
Medical Research Council (GB)
Venue
Proceedings of the National Academy of Sciences
Published
2010-03
Volume
107
Issue
11
Pages
5018-5023
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1979645469
Cited by
735
References
46
Citations by year
2026: 12 · 2025: 17 · 2024: 23 · 2023: 29 · 2022: 27 · 2021: 42 · 2020: 54 · 2019: 38 · 2018: 35 · 2017: 40 · 2016: 46 · 2015: 61 · 2014: 61 · 2013: 71 · 2012: 75
FWCI
47.10
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (acceptedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion, cc-by-nc-nd)
Funders
  • Wellcome Trust (081987, GR077544AIA)
  • Parkinson's UK (G-0713)
  • Medical Research Council (GR077544AIA)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
Parkin, PINK1, mitofusins, mitochondrial fission, mitochondrial fusion, ubiquitination, E3 ubiquitin ligase, Parkinson's disease, mitophagy, mitochondrial translocation, mitochondrial homeostasis, Drosophila
MeSH terms
PTEN-Induced Putative Kinase, Animals, Autophagy, Drosophila melanogaster, Membrane Proteins, Mitochondria, Mutation, Protein Serine-Threonine Kinases, Protein Transport, Drosophila Proteins, Ubiquitin-Protein Ligases, Ubiquitination, Gene Knockdown Techniques

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