Fitness and virulence of a coxsackievirus mutant that can circumnavigate the need for phosphatidylinositol 4-kinase class III beta

Hendrik Jan Thibaut, Hilde M van der Schaar, Kjerstin H W Lanke, Erik Verbeken, Martin Andrews, Pieter Leyssen, Johan Neyts, Frank J M van Kuppeveld

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    Coxsackieviruses require phosphatidylinositol-4-kinase IIIβ (PI4KIIIβ) for replication but can bypass this need by an H57Y mutation in protein 3A (3A-H57Y). We show that mutant coxsackievirus is not outcompeted by wild-type virus during 10 passages in vitro. In mice, the mutant virus proved as virulent as wild-type virus, even when mice were treated with a PI4KIIIβ inhibitor. Our data suggest that upon emergence, the 3A-H57Y mutant has the fitness to establish a resistant population with a virulence similar to that of wild-type virus.

    Original languageEnglish
    Pages (from-to)3048-3051
    Number of pages4
    JournalJournal of Virology
    Volume88
    Issue number5
    DOIs
    Publication statusPublished - 2014

    Keywords

    • 1-Phosphatidylinositol 4-Kinase
    • Animals
    • Coxsackievirus Infections
    • Enterovirus
    • Genetic Fitness
    • Host-Pathogen Interactions
    • Mice
    • Mutation
    • Viral Proteins
    • Virulence
    • Virus Replication

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