Cited by 330Cellular transport and secretionUbiquitin and proteasome pathwaysEndoplasmic Reticulum Stress and Disease

Ubiquitin-dependent regulation of COPII coat size and function

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Jin, Lingyan, Pahuja, Kanika Bajaj, Wickliffe, Katherine E., Gorur, Amita, Baumgärtel, Christine, Schekman, Randy, Rape, Michael·2012·Nature

Abstract

Packaging of proteins from the endoplasmic reticulum into COPII vesicles is essential for secretion. In cells, most COPII vesicles are approximately 60-80 nm in diameter, yet some must increase their size to accommodate 300-400 nm procollagen fibres or chylomicrons. Impaired COPII function results in collagen deposition defects, cranio-lenticulo-sutural dysplasia, or chylomicron retention disease, but mechanisms to enlarge COPII coats have remained elusive. Here, we identified the ubiquitin ligase CUL3-KLHL12 as a regulator of COPII coat formation. CUL3-KLHL12 catalyses the monoubiquitylation of the COPII-component SEC31 and drives the assembly of large COPII coats. As a result, ubiquitylation by CUL3-KLHL12 is essential for collagen export, yet less important for the transport of small cargo. We conclude that monoubiquitylation controls the size and function of a vesicle coat.

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  • KLHL12 can assemble with specific co-adaptors to monoubiquitylate SEC31 for collagen trafficking.

    “it can also assemble with specific co-adaptors to monoubiquitylate the COPII component SEC31 for collagen trafficking 90,91,92”

    From Targeted protein degradation: expanding the toolbox (2019) · cites this paper as [92]

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Authors
Jin, L., Pahuja, K. B., Wickliffe, K. E., Gorur, A., Baumgärtel, C., Schekman, R., & Rape, M.
Affiliations
  • University of California, Berkeley (US)
  • Howard Hughes Medical Institute (US)
Venue
Nature
Published
2012-02
Volume
482
Issue
7386
Pages
495-500
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2050561023
Cited by
330
References
40
Citations by year
2026: 12 · 2025: 18 · 2024: 14 · 2023: 17 · 2022: 26 · 2021: 21 · 2020: 25 · 2019: 15 · 2018: 25 · 2017: 25 · 2016: 27 · 2015: 26 · 2014: 25 · 2013: 42 · 2012: 11
FWCI
15.75
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Foundation for the National Institutes of Health
  • Howard Hughes Medical Institute
  • National Institutes of Health (1dp2od003088-01)
  • National Institute of General Medical Sciences (R01GM083064)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
Keywords
COPII vesicles, monoubiquitylation, Sec31, ubiquitin ligase, chylomicron retention disease, ER-Golgi transport, protein secretion
MeSH terms
Animals, Cell Line, Collagen, HeLa Cells, Humans, Microfilament Proteins, Protein Transport, COP-Coated Vesicles, Ubiquitin, Vesicular Transport Proteins, Cullin Proteins, Cell Shape, Adaptor Proteins, Signal Transducing, Mice, Embryonic Stem Cells, Ubiquitination

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