ArticleJournal of molecular biology2016
Structural and Molecular Determinants of Membrane Binding by the HIV-1 Matrix Protein.
Article in Journal of molecular biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.
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Who cites it
63 citing papers in PubMed, 100 citations in OpenAlex.
- Capsid-Targeting Biologic Achieves Broad HIV-1 Neutralization with a High Barrier to Resistance.International journal of molecular sciences · 2026Article
- The role of HIV-1 Gag and genomic RNA interactions in virion assembly.Frontiers in microbiology · 2025Article
- Insect cell production of chimeric virus-like particles based on human immunodeficiency virus GAG proteins and yellow fever virus envelope protein.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024Article
- Review
- The Assembly of HTLV-1-How Does It Differ from HIV-1?Viruses · 2024Review
- HIV-1 Gag Polyprotein Affinity to the Lipid Membrane Is Independent of Its Surface Charge.Biomolecules · 2024Article
- Human Immunodeficiency Virus Type 1 Gag Polyprotein Modulates Membrane Physical Properties like a Surfactant: Potential Implications for Virus Assembly.ACS infectious diseases · 2024Article
- A Review of FDA-Approved Anti-HIV-1 Drugs, Anti-Gag Compounds, and Potential Strategies for HIV-1 Eradication.International journal of molecular sciences · 2024Review
- Cooperative Membrane Binding of HIV-1 Matrix Proteins.The journal of physical chemistry. B · 2024Article
- Molecular dynamics simulations of HIV-1 matrix-membrane interactions at different stages of viral maturation.Biophysical journal · 2024Article
- Probing the interactions of the HIV-1 matrix protein-derived polybasic region with lipid bilayers: insights from AFM imaging and force spectroscopy.European biophysics journal : EBJ · 2024Article
- The "basics" of HIV-1 assembly.PLoS pathogens · 2024Article
- Conformational transitions of the HIV-1 Gag polyprotein upon multimerization and gRNA binding.Biophysical journal · 2024Article
- Dynamics of upstream ESCRT organization at the HIV-1 budding site.Biophysical journal · 2023Article
- Quantifying membrane binding and diffusion with fluorescence correlation spectroscopy diffusion laws.Biophysical journal · 2023Article
- The structure of Vibrio cholerae FeoC reveals conservation of the helix-turn-helix motif but not the cluster-binding domain.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2022Article
- Molecular Determinants of Human T-cell Leukemia Virus Type 1 Gag Targeting to the Plasma Membrane for Assembly.Journal of molecular biology · 2022Article
- Atomic view of the HIV-1 matrix lattice; implications on virus assembly and envelope incorporation.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Review
- Review
3 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
15 authors at 6 institutions in 2 countries.
Funding
Abstract
Assembly of HIV-1 particles is initiated by the trafficking of viral Gag polyproteins from the cytoplasm to the plasma membrane, where they co-localize and bud to form immature particles. Membrane targeting is mediated by the N-terminally myristoylated matrix (MA) domain of Gag and is dependent on the plasma membrane marker phosphatidylinositol-4,5-bisphosphate [PI(4,5)P2]. Recent studies revealed that PI(4,5)P2 molecules containing truncated acyl chains [tr-PI(4,5)P2] are capable of binding MA in an "extended lipid" conformation and promoting myristoyl exposure. Here we report that tr-PI(4,5)P2 molecules also readily bind to non-membrane proteins, including HIV-1 capsid, which prompted us to re-examine MA-PI(4,5)P2 interactions using native lipids and membrane mimetic liposomes and bicelles. Liposome binding trends observed using a recently developed NMR approach paralleled results of flotation assays, although the affinities measured under the equilibrium conditions of NMR experiments were significantly higher. Native PI(4,5)P2 enhanced MA binding to liposomes designed to mimic non-raft-like regions of the membrane, suggesting the possibility that binding of the protein to disordered domains may precede Gag association with, or nucleation of, rafts. Studies with bicelles revealed a subset of surface and myr-associated MA residues that are sensitive to native PI(4,5)P2, but cleft residues that interact with the 2'-acyl chains of tr-PI(4,5)P2 molecules in aqueous solution were insensitive to native PI(4,5)P2 in bicelles. Our findings call to question extended-lipid MA:membrane binding models, and instead support a model put forward from coarse-grained simulations indicating that binding is mediated predominantly by dynamic, electrostatic interactions between conserved basic residues of MA and multiple PI(4,5)P2 and phosphatidylserine molecules.
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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.