Role for nsP2 Proteins in the Cessation of Alphavirus Minus-Strand Synthesis by Host Cells

Abstract excerpt

In order to establish nonlytic persistent infections (PI) of BHK cells, replicons derived from Sindbis (SIN) and Semliki Forest (SFV) viruses have mutations in nsP2. Five different nsP2 PI replicons were compared to wild-type (wt) SIN, SFV, and wt nsPs SIN replicons. Replicon PI BHK21 cells had viral RNA synthesis rates that were less than 5% of those of the wt virus and approximately 10% or less of those of SIN...

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