Cited by 80Autophagy in Disease and TherapyUbiquitin and proteasome pathwaysHIV Research and Treatment

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TRIM proteins regulate autophagy: TRIM5 is a selective autophagy receptor mediating HIV-1 restriction

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Abstract

The tripartite motif protein family (TRIM) constitutes a class of immune-regulated proteins with antiviral, immune, cancer, and other properties reminiscent of those ascribed to autophagy. We show that TRIMs have dual roles in autophagy: as regulators and as cargo receptors. As regulators, TRIMs nucleate the core autophagy machinery by acting as platforms that assemble ULK1 and BECN1 into a functional complex in preparation for autophagy. TRIMs also act as novel selective autophagy receptors as exemplified by TRIM5/TRIM5α, a known HIV-1 restriction factor with a hitherto poorly defined mode of action. TRIM5 recognizes and targets HIV-1 for autophagic destruction. TRIM5 interactions with mammalian Atg8 proteins are required for this effector function. This establishes TRIM family members as regulators of autophagy, explains the antiretroviral mechanism of TRIM5, and defines a new basis for selective autophagy.

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Crossref · 10.4161/15548627.2014.984278

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Authors
Mandell, M. A., Kimura, T., Jain, A., Johansen, T., & Deretic, V.
Affiliations
  • University of New Mexico (US)
  • UiT The Arctic University of Norway (NO)
Corresponding author
Deretic, Vojo
Venue
Autophagy
Published
2014-12-02
Volume
10
Issue
12
Pages
2387-2388
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2072744924
Cited by
80
References
0
Citations by year
2026: 4 · 2025: 6 · 2024: 6 · 2023: 4 · 2022: 5 · 2021: 10 · 2020: 10 · 2019: 8 · 2018: 7 · 2017: 8 · 2016: 7 · 2015: 5
Type
journal article
Language
en
Open access
Locations
  • Autophagy (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
Keywords
TRIM proteins, autophagy regulation, selective autophagy, TRIM5, TRIM5α, HIV-1 restriction, autophagy receptors, ULK1, Beclin-1, ATG8, cargo receptors
MeSH terms
Autophagy, Carrier Proteins, Humans

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