Cited by 1,050Parkinson's Disease Mechanisms and TreatmentsEndoplasmic Reticulum Stress and DiseaseUbiquitin and proteasome pathways

An unfolded putative transmembrane polypeptide, which can lead to endoplasmic reticulum stress, is a substrate of parkin

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Imai, Yuzuru, Soda, Mariko, Inoue, Haruhisa, Hattori, Nobutaka, Mizuno, Yoshikuni, Takahashi, Ryosuke·2001·Cell

Abstract

A putative G protein-coupled transmembrane polypeptide, named Pael receptor, was identified as an interacting protein with Parkin, a gene product responsible for autosomal recessive juvenile Parkinsonism (AR-JP). When overexpressed in cells, this receptor tends to become unfolded, insoluble, and ubiquitinated in vivo. The insoluble Pael receptor leads to unfolded protein-induced cell death. Parkin specifically ubiquitinates this receptor in the presence of ubiquitin-conjugating enzymes resident in the endoplasmic reticulum and promotes the degradation of insoluble Pael receptor, resulting in suppression of the cell death induced by Pael receptor overexpression. Moreover, the insoluble form of Pael receptor accumulates in the brains of AR-JP patients. Here, we show that the unfolded Pael receptor is a substrate of Parkin, the accumulation of which may cause selective neuronal death in AR-JP.

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Crossref · 10.1016/s0092-8674(01)00407-x

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Authors
Imai, Y., Soda, M., Inoue, H., Hattori, N., Mizuno, Y., & Takahashi, R.
Affiliations
  • RIKEN Center for Brain Science (JP)
  • RIKEN (JP)
  • Juntendo University (JP)
Venue
Cell
Publisher
Elsevier BV
Published
2001-06
Volume
105
Issue
7
Pages
891-902
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2142780460
Cited by
1,050
References
40
Citations by year
2026: 7 · 2025: 14 · 2024: 18 · 2023: 18 · 2022: 22 · 2021: 21 · 2020: 24 · 2019: 19 · 2018: 18 · 2017: 31 · 2016: 23 · 2015: 31 · 2014: 29 · 2013: 39 · 2012: 33
FWCI
62.88
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology
  • Ministry of Health and Welfare
  • RIKEN Brain Science Institute
  • Japan Society for the Promotion of Science
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
Parkin, endoplasmic reticulum stress, protein unfolding, ubiquitination, E2 ubiquitin-conjugating enzyme, G protein-coupled receptors, autosomal recessive juvenile parkinsonism, neuronal cell death, protein degradation, brain accumulation
MeSH terms
Acetylcysteine, Brain, Cells, Cultured, Endoplasmic Reticulum, Humans, Ligases, Microscopy, Fluorescence, Precipitin Tests, Protein Binding, Receptors, Cell Surface, Recombinant Fusion Proteins, Ubiquitins, Cysteine Proteinase Inhibitors, Cell Death, Protein Folding, Parkinsonian Disorders, Two-Hybrid System Techniques, Ubiquitin-Conjugating Enzymes, Ubiquitin-Protein Ligases

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