HIV-1 Envelope Conformation, Allostery, and Dynamics

The HIV-1 envelope glycoprotein (Env) mediates host cell fusion and is the primary target for HIV-1 vaccine design. The Env undergoes a series of functionally important conformational rearrangements upon engagement of its host cell receptor, CD4. As the sole target for broadly neutralizing antibodie...

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Main Authors: Ashley Lauren Bennett, Rory Henderson
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/13/5/852
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author Ashley Lauren Bennett
Rory Henderson
author_facet Ashley Lauren Bennett
Rory Henderson
author_sort Ashley Lauren Bennett
collection DOAJ
description The HIV-1 envelope glycoprotein (Env) mediates host cell fusion and is the primary target for HIV-1 vaccine design. The Env undergoes a series of functionally important conformational rearrangements upon engagement of its host cell receptor, CD4. As the sole target for broadly neutralizing antibodies, our understanding of these transitions plays a critical role in vaccine immunogen design. Here, we review available experimental data interrogating the HIV-1 Env conformation and detail computational efforts aimed at delineating the series of conformational changes connecting these rearrangements. These studies have provided a structural mapping of prefusion closed, open, and transition intermediate structures, the allosteric elements controlling rearrangements, and state-to-state transition dynamics. The combination of these investigations and innovations in molecular modeling set the stage for advanced studies examining rearrangements at greater spatial and temporal resolution.
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spelling doaj.art-171daf6f0e5c439490b462f60f0472be2023-11-21T18:41:00ZengMDPI AGViruses1999-49152021-05-0113585210.3390/v13050852HIV-1 Envelope Conformation, Allostery, and DynamicsAshley Lauren Bennett0Rory Henderson1Duke Human Vaccine Institute, Durham, NC 27710, USADuke Human Vaccine Institute, Durham, NC 27710, USAThe HIV-1 envelope glycoprotein (Env) mediates host cell fusion and is the primary target for HIV-1 vaccine design. The Env undergoes a series of functionally important conformational rearrangements upon engagement of its host cell receptor, CD4. As the sole target for broadly neutralizing antibodies, our understanding of these transitions plays a critical role in vaccine immunogen design. Here, we review available experimental data interrogating the HIV-1 Env conformation and detail computational efforts aimed at delineating the series of conformational changes connecting these rearrangements. These studies have provided a structural mapping of prefusion closed, open, and transition intermediate structures, the allosteric elements controlling rearrangements, and state-to-state transition dynamics. The combination of these investigations and innovations in molecular modeling set the stage for advanced studies examining rearrangements at greater spatial and temporal resolution.https://www.mdpi.com/1999-4915/13/5/852HIV-1envelopeallosterymolecular dynamicsstructure
spellingShingle Ashley Lauren Bennett
Rory Henderson
HIV-1 Envelope Conformation, Allostery, and Dynamics
Viruses
HIV-1
envelope
allostery
molecular dynamics
structure
title HIV-1 Envelope Conformation, Allostery, and Dynamics
title_full HIV-1 Envelope Conformation, Allostery, and Dynamics
title_fullStr HIV-1 Envelope Conformation, Allostery, and Dynamics
title_full_unstemmed HIV-1 Envelope Conformation, Allostery, and Dynamics
title_short HIV-1 Envelope Conformation, Allostery, and Dynamics
title_sort hiv 1 envelope conformation allostery and dynamics
topic HIV-1
envelope
allostery
molecular dynamics
structure
url https://www.mdpi.com/1999-4915/13/5/852
work_keys_str_mv AT ashleylaurenbennett hiv1envelopeconformationallosteryanddynamics
AT roryhenderson hiv1envelopeconformationallosteryanddynamics