Cited by 101Ubiquitin and proteasome pathwaysinterferon and immune responsesNF-κB Signaling Pathways

A BRISC-SHMT Complex Deubiquitinates IFNAR1 and Regulates Interferon Responses

Open access
Zheng, Hui, Gupta, Vibhor, Patterson-Fortin, Jeffrey, Bhattacharya, Sabyasachi, Katlinski, Kanstantsin, Wu, Junmin, Varghese, Bentley, Carbone, Christopher J. +3 more·2013·Cell Reports

Abstract

Lysine63-linked ubiquitin (K63-Ub) chains represent a particular ubiquitin topology that mediates proteasome-independent signaling events. The deubiquitinating enzyme (DUB) BRCC36 segregates into distinct nuclear and cytoplasmic complexes that are specific for K63-Ub hydrolysis. RAP80 targets the five-member nuclear BRCC36 complex to K63-Ub chains at DNA double-strand breaks. The alternative four-member BRCC36 containing complex (BRISC) lacks a known targeting moiety. Here, we identify serine hydroxymethyltransferase (SHMT) as a previously unappreciated component that fulfills this function. SHMT directs BRISC activity at K63-Ub chains conjugated to the type 1 interferon (IFN) receptor chain 1 (IFNAR1). BRISC-SHMT2 complexes localize to and deubiquitinate actively engaged IFNAR1, thus limiting its K63-Ub-mediated internalization and lysosomal degradation. BRISC-deficient cells and mice exhibit attenuated responses to IFN and are protected from IFN-associated immunopathology. These studies reveal a mechanism of DUB regulation and suggest a therapeutic use of BRISC inhibitors for treating pathophysiological processes driven by elevated IFN responses.

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Crossref · 10.1016/j.celrep.2013.08.025

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  • SHMT expression is associated with immune response transcriptional programs in ACC and LGG patient cohorts.

    “Previous studies have identified links between SHMT proteins and interferon signaling, and these findings indicate SHMT expression is associated with immune response transcriptional programs in ACC and LGG patient cohorts.”

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Authors
Zheng, H., Gupta, V., Patterson-Fortin, J., Bhattacharya, S., Katlinski, K., Wu, J., Varghese, B., Carbone, C. J., Aressy, B., Fuchs, S. Y., & Greenberg, R. A.
Affiliations
University of Pennsylvania (US)
Corresponding author
  • Fuchs, Serge Y.
  • Greenberg, Roger A.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2013-10
Volume
5
Issue
1
Pages
180-193
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2071829053
Cited by
101
References
47
Citations by year
2026: 9 · 2025: 9 · 2024: 5 · 2023: 7 · 2022: 6 · 2021: 18 · 2020: 6 · 2019: 12 · 2018: 7 · 2017: 3 · 2016: 5 · 2015: 8 · 2014: 6
FWCI
2.83
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • U.S. Department of Defense
  • American Cancer Society
  • University of Pennsylvania
  • Breast Cancer Coalition of Rochester
  • National Institutes of Health
  • Harrington Discovery Institute, University Hospitals
  • National Cancer Institute (R01CA138835, CA17494, CA 092900, R01CA092900, CA142425, CA138835, R01CA142425, R01CA174904)
  • National Institute of General Medical Sciences (GM101149, R01GM101149)
  • Abramson Family Cancer Research Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
BRCC36, serine hydroxymethyltransferase, SHMT2, deubiquitination, K63-linked ubiquitin, IFNAR1, type I interferon signaling, lysosomal degradation
MeSH terms
Animals, Female, HeLa Cells, Humans, Interferons, Membrane Proteins, Mice, Inbred C57BL, Glycine Hydroxymethyltransferase, Ubiquitins, RNA, Small Interfering, Multiprotein Complexes, Mice, Receptor, Interferon alpha-beta, Ubiquitination, HEK293 Cells

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