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Erschienen in: Archives of Virology 9/2017

18.05.2017 | Brief Report

Vaccinia virus G1 protein: absence of autocatalytic self-processing

verfasst von: F. G. G. Leite, A. Bergthaler, T. Skern

Erschienen in: Archives of Virology | Ausgabe 9/2017

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Abstract

Vaccinia virus relies on a series of proteolytic cleavage events involving two viral proteins, I7 and G1, to complete its life cycle. Furthermore, G1 itself is cleaved during vaccinia virus infection. However, convincing evidence is lacking to show whether G1 participates in autoproteolysis or is a substrate of another protease. We employed both biochemical and cell-based approaches to investigate G1 cleavage. G1, when expressed in bacteria, rabbit reticulocyte lysates or HeLa cells, was not processed. Moreover, G1 was cleaved in infected cells, but only in the presence of virus late gene expression; cleavage was strongly inhibited by proteasome inhibitors. Thus, these results imply a more complex G1 cleavage reaction than previously envisaged.
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Metadaten
Titel
Vaccinia virus G1 protein: absence of autocatalytic self-processing
verfasst von
F. G. G. Leite
A. Bergthaler
T. Skern
Publikationsdatum
18.05.2017
Verlag
Springer Vienna
Erschienen in
Archives of Virology / Ausgabe 9/2017
Print ISSN: 0304-8608
Elektronische ISSN: 1432-8798
DOI
https://doi.org/10.1007/s00705-017-3409-y

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