Cited by 127Ubiquitin and proteasome pathwaysDevelopmental Biology and Gene RegulationCellular transport and secretion

Regulation of the CUL3 Ubiquitin Ligase by a Calcium-Dependent Co-adaptor

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McGourty, Colleen A., Akopian, David, Walsh, Carolyn, Gorur, Amita, Werner, Achim, Schekman, Randy, Bautista, Diana, Rape, Michael·2016·Cell

Abstract

The ubiquitin ligase CUL3 is an essential regulator of neural crest specification whose aberrant activation has been linked to autism, schizophrenia, and hypertension. CUL3 exerts its roles by pairing with ∼90 distinct substrate adaptors, yet how the different CUL3-complexes are activated is poorly understood. Here, we show that CUL3 and its adaptor KLHL12 require two calcium-binding proteins, PEF1 and ALG2, for recognition of their substrate SEC31. PEF1 and ALG2 form a target-specific co-adaptor that translates a transient rise in cytosolic calcium levels into more persistent SEC31 ubiquitylation, which in turn triggers formation of large COPII coats and promotes collagen secretion. As calcium also instructs chondrocyte differentiation and collagen synthesis, calcium-dependent control of CUL3 KLHL12 integrates collagen secretion into broader programs of craniofacial bone formation. Our work, therefore, identifies both calcium and CUL3 co-adaptors as important regulators of ubiquitylation events that control human development.

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Crossref · 10.1016/j.cell.2016.09.026

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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 [90]

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Authors
McGourty, C. A., Akopian, D., Walsh, C., Gorur, A., Werner, A., Schekman, R., Bautista, D., & Rape, M.
Affiliations
  • University of California, Berkeley (US)
  • Howard Hughes Medical Institute (US)
Venue
Cell
Publisher
Elsevier BV
Published
2016-10
Volume
167
Issue
2
Pages
525-538.e14
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2529546502
Cited by
126
References
50
Citations by year
2026: 5 · 2025: 13 · 2024: 5 · 2023: 14 · 2022: 17 · 2021: 16 · 2020: 10 · 2019: 14 · 2018: 20 · 2017: 12
FWCI
7.97
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
Keywords
ALG-2, calcium signaling, collagen secretion, chondrogenic differentiation, neural crest specification, substrate recognition
MeSH terms
Calcium, Calcium-Binding Proteins, Collagen, Humans, Microfilament Proteins, Substrate Specificity, Cell Cycle Proteins, COP-Coated Vesicles, Vesicular Transport Proteins, Cullin Proteins, Adaptor Proteins, Signal Transducing, Ubiquitination, Endosomal Sorting Complexes Required for Transport, HEK293 Cells

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