ArticleBioscience reports2023
Differential regulation of ATP hydrolysis of RIG-I-like receptors by transactivation response RNA-binding protein.
Article in Bioscience reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 4 citations in OpenAlex.
- HSPA6 is induced by RIG-I-like receptors and negatively regulates type-I interferon signaling.Cellular and molecular life sciences : CMLS · 2026Article
- TRBP modulates RLR signaling by inhibiting PKR-mediated antiviral stress granule formation.Scientific reports · 2025Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Retinoic acid inducible gene (RIG)-I-like receptors (RLRs), including RIG-I, melanoma differentiation associated-5 (MDA5), and laboratory of genetics and physiology 2 (LGP2), play pivotal roles in viral RNA sensing to initiate antiviral interferon (IFN) responses. We previously reported that an RNA-silencing regulator, transactivation response RNA-binding protein (TRBP), up-regulates MDA5/LGP2-mediated IFN responses through interaction with LGP2. Here, we aimed to investigate the mechanism underlying the TRBP-mediated up-regulation of IFN response. Data indicated that phosphomimetic TRBP showed a modest effect, whereas the nonphosphorylated form exhibited hyperactivity in enhancing Cardiovirus-triggered IFN responses. These results suggest that encephalomyocarditis virus (EMCV) attenuates the TRBP-mediated IFN response via TRBP phosphorylation, since EMCV infection activates the kinase responsible for TRBP phosphorylation for virus replication. Furthermore, we found that TRBP-mediated up-regulation of IFN response required the ATP hydrolysis and RNA binding of LGP2. TRBP enhanced RNA-dependent ATP hydrolysis by LGP2 but not that by RIG-I or MDA5. Nonphosphorylated TRBP exhibited higher levels of activity than phosphomimetic TRBP did, suggesting its possible involvement in the mechanism underlying the up-regulation of IFN response. TRBP activated the ATP hydrolysis of LGP2 and RIG-I, but not that of MDA5, in the absence of RNA. Collectively, we showed that TRBP differentially regulated RLR-mediated ATP hydrolysis. Further elucidation of the mechanism underlying the regulation of ATP hydrolysis leading to IFN response and self- and non-self-RNA discrimination could advance the development of effective therapeutic agents against autoimmune diseases.
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