{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T05:08:29Z","timestamp":1790399309110,"version":"4.1.0"},"update-to":[{"DOI":"10.1371\/journal.ppat.1010249","type":"new_version","label":"New version","source":"publisher","updated":{"date-parts":[[2022,2,8]],"date-time":"2022-02-08T00:00:00Z","timestamp":1644278400000}}],"reference-count":49,"publisher":"Public Library of Science (PLoS)","issue":"1","license":[{"start":{"date-parts":[[2022,1,27]],"date-time":"2022-01-27T00:00:00Z","timestamp":1643241600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["AI50237"],"award-info":[{"award-number":["AI50237"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plospathogens.org"],"crossmark-restriction":false},"short-container-title":["PLoS Pathog"],"abstract":"<jats:p>Stress granules (SGs) are highly dynamic cytoplasmic foci that form in response to activation of the integrated stress response (ISR) that results in eIF2\u03b1 phosphorylation and global translation shutdown. Stress granules, which are largely nucleated by G3BP1, serve as hubs for mRNA triage, but there is mounting evidence that they also perform cell signaling functions that are vital to cell survival, particularly during viral infection. We previously showed that SG formation leads to NF\u03baB activation and JNK signaling and that this association may be due in part to G3BP1-dependent recruitment of PKR to SGs. Others have reported close associations between G3BP1 and various innate immune PRRs of the type 1 interferon signaling system, including RIG-I. We also reported SG assembly dynamics is dependent on the arginine-methylation status of G3BP1. Another protein that rapidly localizes to SGs, TDRD3, is a methyl reader protein that performs transcriptional activation and adaptor functions within the nucleus, but neither the mechanism nor its function in SGs is clear. Here, we present evidence that TDRD3 localizes to SGs partly based upon methylation potential of G3BP1. We also characterize granules that TDRD3 forms during overexpression and show that these granules can form in the absence of G3BP but also contain translation components found in canonical SGs. We also show for the first time that SGs recruit additional interferon effectors IRF3, IRF7, TBK1, and Sting, and provide evidence that TDRD3 may play a role in recruitment of these factors. We also present evidence that TDRD3 is a novel antiviral protein that is cleaved by enteroviral 2A proteinase. G3BP1 and TDRD3 knockdown in cells results in altered transcriptional regulation of numerous IFN effectors in complex modulatory patterns that are distinctive for G3BP1 and TDRD3. Overall, we describe a novel role of TDRD3 in innate immunity in which G3BP1 and TDRD3 may coordinate to play important roles in regulation of innate antiviral defenses.<\/jats:p>","DOI":"10.1371\/journal.ppat.1010249","type":"journal-article","created":{"date-parts":[[2022,1,27]],"date-time":"2022-01-27T18:55:42Z","timestamp":1643309742000},"page":"e1010249","update-policy":"https:\/\/doi.org\/10.1371\/journal.ppat.corrections_policy","source":"Crossref","is-referenced-by-count":31,"title":["TDRD3 is an antiviral restriction factor that promotes IFN signaling with G3BP1"],"prefix":"10.1371","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9046-4049","authenticated-orcid":true,"given":"Matthew","family":"Deater","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8706-8643","authenticated-orcid":true,"given":"Manasi","family":"Tamhankar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6550-3237","authenticated-orcid":true,"given":"Richard E.","family":"Lloyd","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2022,1,27]]},"reference":[{"key":"ppat.1010249.ref001","doi-asserted-by":"crossref","first-page":"927","DOI":"10.1242\/jcs.199240","article-title":"Stress-specific differences in assembly and composition of stress granules and related foci","volume":"130","author":"A Aulas","year":"2017","journal-title":"J Cell Sci"},{"key":"ppat.1010249.ref002","doi-asserted-by":"crossref","first-page":"668","DOI":"10.1016\/j.tcb.2016.05.004","article-title":"Principles and Properties of Stress Granules","volume":"26","author":"DSW Protter","year":"2016","journal-title":"Trends in Cell Biology"},{"key":"ppat.1010249.ref003","doi-asserted-by":"crossref","first-page":"325","DOI":"10.1016\/j.cell.2020.03.046","article-title":"G3BP1 Is a Tunable Switch that Triggers Phase Separation to Assemble Stress Granules","volume":"181","author":"P Yang","year":"2020","journal-title":"Cell"},{"key":"ppat.1010249.ref004","doi-asserted-by":"crossref","first-page":"3532","DOI":"10.1074\/jbc.RA118.005423","article-title":"Liquid- and solid-like RNA granules form through specific scaffold proteins and combine into biphasic granules","volume":"294","author":"N. 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