ArticleViruses2016
Functional Equivalence of Retroviral MA Domains in Facilitating Psi RNA Binding Specificity by Gag.
Article in Viruses, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 24 citations in OpenAlex.
- Two Peas in a Pod: Retroviral RNA Dimers Organize Gag-RNA Nanoclusters with Novel Biophysical Properties.International journal of molecular sciences · 2025Article
- Two peas in a pod: retroviral RNA dimers organize Gag-RNA nanoclusters with novel biophysical properties.bioRxiv : the preprint server for biology · 2025Article
- Article
- Transcription start site choice regulates HIV-1 RNA conformation and function.Current opinion in structural biology · 2024Review
- HIV-1 RNA genome packaging: it's G-rated.mBio · 2024Review
- Structural and computational studies of HIV-1 RNA.RNA biology · 2024Review
- The Rous sarcoma virus Gag Polyprotein Forms Biomolecular Condensates Driven by Intrinsically-disordered Regions.Journal of molecular biology · 2023Article
- Distinct Gag interaction properties of HIV-1 RNA 5' leader conformers reveal a mechanism for dimeric genome selection.RNA (New York, N.Y.) · 2023Article
- Selective packaging of HIV-1 RNA genome is guided by the stability of 5' untranslated region polyA stem.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- HIV-1 integrase binding to genomic RNA 5'-UTR induces local structural changes in vitro and in virio.Retrovirology · 2021Article
- RNA Binding Properties of the Ty1 LTR-Retrotransposon Gag Protein.International journal of molecular sciences · 2021Article
- HIV-1 Gag Forms Ribonucleoprotein Complexes with Unspliced Viral RNA at Transcription Sites.Viruses · 2020Article
- HIV-1 Gag protein with or without p6 specifically dimerizes on the viral RNA packaging signal.The Journal of biological chemistry · 2020Article
- Rous Sarcoma Virus Genomic RNA Dimerization Capability In Vitro Is Not a Prerequisite for Viral Infectivity.Viruses · 2020Article
- Retroviral Gag protein-RNA interactions: Implications for specific genomic RNA packaging and virion assembly.Seminars in cell & developmental biology · 2019Review
- Human T-cell leukemia virus type 1 Gag domains have distinct RNA-binding specificities with implications for RNA packaging and dimerization.The Journal of biological chemistry · 2018Article
- Article
- Mutations in the Basic Region of the Mason-Pfizer Monkey Virus Nucleocapsid Protein Affect Reverse Transcription, Genomic RNA Packaging, and the Virus Assembly Site.Journal of virology · 2018Article
- Article
- Mechanistic differences between HIV-1 and SIV nucleocapsid proteins and cross-species HIV-1 genomic RNA recognition.Retrovirology · 2016Article
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
Abstract
Retroviruses specifically package full-length, dimeric genomic RNA (gRNA) even in the presence of a vast excess of cellular RNA. The "psi" (Ψ) element within the 5'-untranslated region (5'UTR) of gRNA is critical for packaging through interaction with the nucleocapsid (NC) domain of Gag. However, in vitro Gag binding affinity for Ψ versus non-Ψ RNAs is not significantly different. Previous salt-titration binding assays revealed that human immunodeficiency virus type 1 (HIV-1) Gag bound to Ψ RNA with high specificity and relatively few charge interactions, whereas binding to non-Ψ RNA was less specific and involved more electrostatic interactions. The NC domain was critical for specific Ψ binding, but surprisingly, a Gag mutant lacking the matrix (MA) domain was less effective at discriminating Ψ from non-Ψ RNA. We now find that Rous sarcoma virus (RSV) Gag also effectively discriminates RSV Ψ from non-Ψ RNA in a MA-dependent manner. Interestingly, Gag chimeras, wherein the HIV-1 and RSV MA domains were swapped, maintained high binding specificity to cognate Ψ RNAs. Using Ψ RNA mutant constructs, determinants responsible for promoting high Gag binding specificity were identified in both systems. Taken together, these studies reveal the functional equivalence of HIV-1 and RSV MA domains in facilitating Ψ RNA selectivity by Gag, as well as Ψ elements that promote this selectivity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.