Abstract:Previously, we established a system whereby an intergenic region from mouse hepatitis virus (MHV) inserted into an MHV defective interfering (DI) RNA led to transcription of a subgenomic DI RNA in helper virus-infected cells. By using this system, the duration of a primary transcription initiation activity which transcribes subgenomic-size RNAs from the genomic-size RNA template in MHV-infected cells was examined. Efficient DI genomic and subgenomic RNA synthesis was observed when the DI RNA was transfected at… Show more
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