T-body formation precedes virus-like particle maturation in S. cerevisiae

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T-bodies are localized S. cerevisiae RNPs containing Ty1 retroviral components and speculated to play a role in the assembly of virus-like particles (VLPs). Mapping requirements for T-body formation, we demonstrate that ectopic expression of immature TyA1/Gag (Gag-p49), a structural component of the Ty1 capsid, is sufficient for T-body formation both under normal conditions as well as in a strain background devoid of endogenous Gag. Moreover, T-bodies are readily formed when Ty1 transposition is blocked. Thus, T-bodies represent an early stage in the Ty1 life cycle, preceding VLP maturation
OriginalsprogEngelsk
TidsskriftRNA Biology
Vol/bind8
Nummer2
Sider (fra-til)184-189
Antal sider6
ISSN1547-6286
DOI
StatusUdgivet - 2011

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