Herpes Simplex Virus 1 UL34 Mutants That Affect Membrane Budding Regulation and Nuclear Lamina Disruption.

ABSTRACT: Nuclear envelope budding in herpesvirus nuclear egress may be negatively regulated, since the pUL31/pUL34 nuclear egress complex heterodimer can induce membrane budding without capsids when expressed ectopically or on artificial membranes in vitro, but not in the infected cell. We have previously described a pUL34 mutant that contained alanine substitutions at R158 and R161 and that showed impaired growth, impaired pUL31/pUL34 interaction, and unregulated budding. Here, we determine the phenotypic contributions of the individual substitutions to these phenotypes. Neither substitution alone was able to reproduce the impaired growth or nuclear egress complex (NEC) interaction phenotypes. Either substitution, however, could fully reproduce the unregulated budding phenotype, suggesting

SUBMITTER: Vu A 

PROVIDER: S-EPMC8354240 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature