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Cell Host & Microbe
Article
License: Elsevier Non-Commercial
Data sources: UnpayWall
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Cell Host & Microbe
Article . 2019 . Peer-reviewed
License: Elsevier Non-Commercial
Data sources: Crossref
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Modular HIV-1 Capsid Assemblies Reveal Diverse Host-Capsid Recognition Mechanisms

Authors: Brady J, Summers; Katherine M, Digianantonio; Sarah S, Smaga; Pei-Tzu, Huang; Kaifeng, Zhou; Eva E, Gerber; Wei, Wang; +1 Authors

Modular HIV-1 Capsid Assemblies Reveal Diverse Host-Capsid Recognition Mechanisms

Abstract

The HIV-1 capsid is an ordered protein shell that houses the viral genome during early infection. Its expansive surface consists of an ordered and interfacing array of capsid protein hexamers and pentamers that are recognized by numerous cellular proteins. Many of these proteins recognize specific, assembled capsid interfaces not present in unassembled capsid subunits. We used protein-engineering tools to capture diverse capsid assembly intermediates. We built a repertoire of capsid assemblies (ranging from two to 42 capsid protein molecules) that recreate the various surfaces in infectious capsids. These assemblies reveal unique capsid-targeting mechanisms for each of the anti-HIV factors, TRIMCyp, MxB, and TRIM5α, linked to inhibition of virus uncoating and nuclear entry, as well as the HIV-1 cofactor FEZ1 that facilitates virus intracellular trafficking. This capsid assembly repertoire enables elucidation of capsid recognition modes by known capsid-interacting factors, identification of new capsid-interacting factors, and potentially, development of capsid-targeting therapeutics.

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Keywords

Myxovirus Resistance Proteins, Anti-HIV Agents, Recombinant Fusion Proteins, Ubiquitin-Protein Ligases, Protein Engineering, Macaca mulatta, Antiviral Restriction Factors, Tripartite Motif Proteins, Macaca fascicularis, Capsid, Protein Domains, HIV-1, Animals, Humans, Capsid Proteins, Protein Interaction Domains and Motifs, Carrier Proteins, Protein Binding

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
34
Top 10%
Average
Top 10%
hybrid