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TRIM Proteins Regulate Autophagy and Can Target Autophagic Substrates by Direct Recognition
Open accessAbstract
SUMMARY Autophagy, a homeostatic process whereby eukaryotic cells target cytoplasmic cargo for degradation, plays a broad role in health and disease states. Here we screened the TRIM family for roles in autophagy and found that half of TRIMs modulated autophagy. In mechanistic studies we show that TRIMs associate with autophagy factors and act as platforms assembling ULK1 and Beclin 1 in their activated states. Furthermore, TRIM5α acts as a selective autophagy receptor. Based on direct sequence-specific recognition, TRIM5α delivered its cognate cytosolic target, a viral capsid protein, for autophagic degradation. Thus, our study establishes that TRIMs can function both as regulators of autophagy and as autophagic cargo receptors, and reveals a new basis for selective autophagy in mammalian cells.
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Metadata
- Authors
- Mandell, M. A., Jain, A., Arko-Mensah, J., Chauhan, S., Kimura, T., Dinkins, C., Silvestri, G., Münch, J., Kirchhoff, F., Simonsen, A., Wei, Y., Levine, B., Johansen, T., & Deretic, V.
- Venue
- Developmental Cell
- Publisher
- Elsevier BV
- Published
- 2014-08
- Volume
- 30
- Issue
- 4
- Pages
- 394-409
- ISSN
- 1534-5807 (ISSN-L)
- OpenAlex
- W2127187639
- Cited by
- 329
- References
- 17
- FWCI
- 19.55
- Type
- journal article
- Language
- en
- Open access
- bronze
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