HIV-1 maturation: lessons learned from inhibitors

AB Kleinpeter, EO Freed - Viruses, 2020 - mdpi.com
Since the emergence of HIV and AIDS in the early 1980s, the development of safe and
effective therapies has accompanied a massive increase in our understanding of the …

Multiple roles of HIV-1 capsid during the virus replication cycle

M Novikova, Y Zhang, EO Freed, K Peng - Virologica Sinica, 2019 - Springer
Human immunodeficiency virus-1 capsid (HIV-1 CA) is involved in different stages of the
viral replication cycle. During virion assembly, CA drives the formation of the hexameric …

A stable immature lattice packages IP6 for HIV capsid maturation

DL Mallery, AB Kleinpeter, N Renner, KMR Faysal… - Science …, 2021 - science.org
HIV virion assembly begins with the construction of an immature lattice consisting of Gag
hexamers. Upon virion release, protease-mediated Gag cleavage leads to a maturation …

Crystal structure of an HIV assembly and maturation switch

JM Wagner, KK Zadrozny, J Chrustowicz, MD Purdy… - Elife, 2016 - elifesciences.org
Virus assembly and maturation proceed through the programmed operation of molecular
switches, which trigger both local and global structural rearrangements to produce infectious …

Maturation of retroviruses

O Pornillos, BK Ganser-Pornillos - Current opinion in virology, 2019 - Elsevier
During retrovirus maturation, cleavage of the precursor structural Gag polyprotein by the
viral protease induces architectural rearrangement of the virus particle from an immature into …

Structural biology of supramolecular assemblies by magic-angle spinning NMR spectroscopy

CM Quinn, T Polenova - Quarterly reviews of biophysics, 2017 - cambridge.org
In recent years, exciting developments in instrument technology and experimental
methodology have advanced the field of magic-angle spinning (MAS) nuclear magnetic …

High-resolution structures of HIV-1 Gag cleavage mutants determine structural switch for virus maturation

S Mattei, A Tan, B Glass, B Müller… - Proceedings of the …, 2018 - National Acad Sciences
HIV-1 maturation occurs via multiple proteolytic cleavages of the Gag polyprotein, causing
rearrangement of the virus particle required for infectivity. Cleavage results in beta-hairpin …

CryoET structures of immature HIV Gag reveal six-helix bundle

L Mendonça, D Sun, J Ning, J Liu, A Kotecha… - Communications …, 2021 - nature.com
Gag is the HIV structural precursor protein which is cleaved by viral protease to produce
mature infectious viruses. Gag is a polyprotein composed of MA (matrix), CA (capsid), SP1 …

Quenching protein dynamics interferes with HIV capsid maturation

M Wang, CM Quinn, JR Perilla, H Zhang… - Nature …, 2017 - nature.com
Maturation of HIV-1 particles encompasses a complex morphological transformation of Gag
via an orchestrated series of proteolytic cleavage events. A longstanding question concerns …

The effect of inositol hexakisphosphate on HIV-1 particle production and infectivity can be modulated by mutations that affect the stability of the immature Gag lattice

AB Kleinpeter, Y Zhu, DL Mallery, SD Ablan… - Journal of Molecular …, 2023 - Elsevier
The assembly of an HIV-1 particle begins with the construction of a spherical lattice
composed of hexamer subunits of the Gag polyprotein. The cellular metabolite inositol …