Logo image
Ring finger protein 213 assembles into a sensor for ISGylated proteins with antimicrobial activity
Journal article   Open access   Peer reviewed

Ring finger protein 213 assembles into a sensor for ISGylated proteins with antimicrobial activity

Fabien Thery, Lia Martina, Caroline Asselman, Yifeng Zhang, Madeleine Vessely, Heidi Repo, Koen Sedeyn, George D Moschonas, Clara Bredow, Qi Wen Teo, …
Nature communications, Vol.12(1), pp.5772-5772
10/01/2021
DOI: 10.1038/s41467-021-26061-w
PMCID: PMC8486878
PMID: 34599178
url
https://doi.org/10.1038/s41467-021-26061-wView
Published (Version of record) Open Access

Abstract

ISG15 is an interferon-stimulated, ubiquitin-like protein that can conjugate to substrate proteins (ISGylation) to counteract microbial infection, but the underlying mechanisms remain elusive. Here, we use a virus-like particle trapping technology to identify ISG15-binding proteins and discover Ring Finger Protein 213 (RNF213) as an ISG15 interactor and cellular sensor of ISGylated proteins. RNF213 is a poorly characterized, interferon-induced megaprotein that is frequently mutated in Moyamoya disease, a rare cerebrovascular disorder. We report that interferon induces ISGylation and oligomerization of RNF213 on lipid droplets, where it acts as a sensor for ISGylated proteins. We show that RNF213 has broad antimicrobial activity in vitro and in vivo, counteracting infection with Listeria monocytogenes, herpes simplex virus 1, human respiratory syncytial virus and coxsackievirus B3, and we observe a striking co-localization of RNF213 with intracellular bacteria. Together, our findings provide molecular insights into the ISGylation pathway and reveal RNF213 as a key antimicrobial effector.
A549 Cells Adenosine Triphosphatases - metabolism Animals Anti-Infective Agents - metabolism Cytokines - metabolism Enterovirus - physiology HEK293 Cells HeLa Cells Herpesvirus 1, Human - physiology Humans Interferon Type I - metabolism Lipid Droplets - metabolism Listeria monocytogenes - physiology Male Mice, Inbred C57BL Protein Binding Protein Multimerization Small Ubiquitin-Related Modifier Proteins - metabolism THP-1 Cells Ubiquitin - metabolism Ubiquitin-Protein Ligases - metabolism Ubiquitins - metabolism

Details

Logo image