A subgenomic mRNA transcript of the coronavirus mouse hepatitis virus strain A59 defective interfering (DI) RNA is packaged when it contains the DI packaging signal.
AUTOR(ES)
Bos, E C
RESUMO
In infected cells, only the genomic RNA of the coronavirus mouse hepatitis virus strain A59 (MHV-A59) is packaged into the virions. In this study, we show that a subgenomic (sg) defective interfering (DI) RNA can be packaged into virions when it contains the DI RNA packaging signal (DI RNA-Ps). However, the sg DI RNA is packaged less efficiently than the DI genomic RNA. Thus, while specificity of packaging of RNAs into MHV-A59 virions is determined by the DI RNA-Ps, efficiency of packaging is determined by additional factors.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=191817Documentos Relacionados
- Analysis of efficiently packaged defective interfering RNAs of murine coronavirus: localization of a possible RNA-packaging signal.
- The 3' untranslated region of coronavirus RNA is required for subgenomic mRNA transcription from a defective interfering RNA.
- Fusion-defective mutants of mouse hepatitis virus A59 contain a mutation in the spike protein cleavage signal.
- The Leader RNA of Coronavirus Mouse Hepatitis Virus Contains an Enhancer-Like Element for Subgenomic mRNA Transcription
- Three intergenic regions of coronavirus mouse hepatitis virus strain A59 genome RNA contain a common nucleotide sequence that is homologous to the 3' end of the viral mRNA leader sequence.