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Cited by 263

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Phosphorylated ubiquitin chain is the genuine Parkin receptor

Open access
Okatsu, Kei, Koyano, Fumika, Kimura, Mayumi, Kosako, Hidetaka, Saeki, Yasushi, Tanaka, Keiji, Matsuda, Noriyuki·2015·Journal of Cell Biology

Abstract

PINK1 selectively recruits Parkin to depolarized mitochondria for quarantine and removal of damaged mitochondria via ubiquitylation. Dysfunction of this process predisposes development of familial recessive Parkinson’s disease. Although various models for the recruitment process have been proposed, none of them adequately explain the accumulated data, and thus the molecular basis for PINK1 recruitment of Parkin remains to be fully elucidated. In this study, we show that a linear ubiquitin chain of phosphomimetic tetra-ubiquitin(S65D) recruits Parkin to energized mitochondria in the absence of PINK1, whereas a wild-type tetra-ubiquitin chain does not. Under more physiologically relevant conditions, a lysosomal phosphorylated polyubiquitin chain recruited phosphomimetic Parkin to the lysosome. A cellular ubiquitin replacement system confirmed that ubiquitin phosphorylation is indeed essential for Parkin translocation. Furthermore, physical interactions between phosphomimetic Parkin and phosphorylated polyubiquitin chain were detected by immunoprecipitation from cells and in vitro reconstitution using recombinant proteins. We thus propose that the phosphorylated ubiquitin chain functions as the genuine Parkin receptor for recruitment to depolarized mitochondria.

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Metadata

Authors
Okatsu, K., Koyano, F., Kimura, M., Kosako, H., Saeki, Y., Tanaka, K., & Matsuda, N.
Venue
Journal of Cell Biology
Published
2015-04-06
Volume
209
Issue
1
Pages
111-128
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2169640408
Cited by
263
References
25
FWCI
20.04
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Phosphorylated ubiquitin chain is the genuine Parkin receptor. https://app.cochat.ai/papers/10.1083/jcb.201410050
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Okatsu, K., Koyano, F., Kimura, M., Kosako, H., Saeki, Y., Tanaka, K., & Matsuda, N. (2015). Phosphorylated ubiquitin chain is the genuine Parkin receptor. Journal of Cell Biology. https://doi.org/10.1083/jcb.201410050

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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