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University of Lethbridge

Functional analysis of two baculovirus envelope proteins

Abstract

Budded virions of AcMNPV can enter a variety of non-host cells, a characteristic likely due to the presence of GP64, an envelope protein found on a small subset of baculoviruses. Results show that AcMNPV's tropism for vertebrate cells can be restricted - a prerequisite for using AcMNPV for targeted in vivo gene delivery - by replacing the gp64 gene with SeF from SeMNPV. Unlike the relatively well characterized GP64 protein, the significance and function of the F homolog (Ac23, a pathogenicity factor), is poorly understood. How Ac23 might contribute to the faster speed of kill was examined by comparing occlusion bodies and occlusion-derived virions (ODV) of Ac23null mutant viruses with control viruses at the ultrastructural level. The results show that Ac23null mutant produces a significantly higher percentage of ODVs with single or lower number of nucleocapsids than controls, suggesting Ac23 may play a role in multicapsid envelopment of ODVs.

Author and committee

dc:creator, dc:contributor.*
Authors
  • Yu, Ian-Ling
  • University of Lethbridge. Faculty of Arts and Science

Subjects

dc:subject × 4

Identifiers

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Identifier
hdl:10133/680
OAI identifier oai:identifier
oai:opus.uleth.ca:10133/680

Chain of custody

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Harvested from
University of Lethbridge
Base URL
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Last updated
2026-07-27
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OAI-PMH GetRecord
citation

Yu, Ian-Ling; University of Lethbridge. Faculty of Arts and Science. Functional analysis of two baculovirus envelope proteins. 2008.