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Recent Advances in Bunyavirus Glycoprotein Research: Precursor Processing, Receptor Binding and Structure.

ABSTRACT: The Bunyavirales order accommodates related viruses (bunyaviruses) with segmented, linear, single-stranded, negative- or ambi-sense RNA genomes. Their glycoproteins form capsomeric projections or spikes on the virion surface and play a crucial role in virus entry, assembly, morphogenesis. Bunyavirus glycoproteins are encoded by a single RNA segment as a polyprotein precursor that is co- and post-translationally cleaved by host cell enzymes to yield two mature glycoproteins, Gn and Gc (or GP1 and GP2 in arenaviruses). These glycoproteins undergo extensive N-linked glycosylation and despite their cleavage, remain associated to the virion to form an integral transmembrane glycoprotein complex. This review summarizes recent advances in our understanding of the molecular biology of bunyavirus glycoproteins, including their processing, structure, and known interactions with host factors that facilitate cell entry.

SUBMITTER: Hulswit RJG

PROVIDER: S-EPMC7926653 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Recent Advances in Bunyavirus Glycoprotein Research: Precursor Processing, Receptor Binding and Structure.

Hulswit Ruben J G RJG Paesen Guido C GC Bowden Thomas A TA Shi Xiaohong X

Viruses 20210223 2

The <i>Bunyavirales</i> order accommodates related viruses (bunyaviruses) with segmented, linear, single-stranded, negative- or ambi-sense RNA genomes. Their glycoproteins form capsomeric projections or spikes on the virion surface and play a crucial role in virus entry, assembly, morphogenesis. Bunyavirus glycoproteins are encoded by a single RNA segment as a polyprotein precursor that is co- and post-translationally cleaved by host cell enzymes to yield two mature glycoproteins, Gn and Gc (or ...[more]

PMID: 33672327

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