ArticleJournal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS)2023
Structural modeling of protein ensembles between E3 RING ligases and SARS-CoV-2: The role of zinc binding domains.
Article in Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 6 citations in OpenAlex.
- Zinc Deficiency And sTNF-RII Are Associated With Worse COVID-19 Outcomes.The Journal of nutrition · 2024Observational
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4 authors at 4 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe ubiquitin system is a modification process with many different cellular functions including immune signaling and antiviral functions. E3 ubiquitin ligases are enzymes that recruit an E2 ubiquitin-conjugating enzyme bound to ubiquitin in order to catalyze the transfer of ubiquitin from the E2 to a protein substrate. The RING E3s, the most abundant type of ubiquitin ligases, are characterized by a zinc (II)-binding domain called RING (Really Interesting New Gene). Viral replication requires modifying and hijacking key cellular pathways within host cells such as cellular ubiquitination. There are well-established examples where a viral proteins bind to RING E3s, redirecting them to degrade otherwise long-lived host proteins or inhibiting E3's ubiquitination activity. Recently, three binary interactions between SARS-CoV-2 proteins and innate human immune signaling Ε3 RING ligases: NSP15-RNF41, ORF3a-TRIM59 and NSP9-MIB1 have been experimentally established.
methodsIn this work, we have investigated the mode of the previous experimentally supported NSP15-RNF41, ORF3a,-TRIM59 and NSP9-MIB1 binary interactions by in silico methodologies intending to provide structural insights of E3-virus interplay that can help identify potential inhibitors that could block SARS-CoV-2 infection of immune cells.
conclusionIn silico methodologies have shown that the above human E3 ligases interact with viral partners through their Zn(II) binding domains. This RING mediated formation of stable SARS-CoV-2-E3 complexes indicates a critical structural role of RING domains in immune system disruption by SARS-CoV-2-infection. DATA AVAILABILITY: The data used to support the findings of this research are included within the article and are labeled with references.
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