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pubmed:abstractText |
A guanine nucleotide insertion event has been shown to occur at a specific site within mumps virus P-gene mRNA transcripts. The region of the mRNA containing the site expected to be used for RNA editing and the complementary portion of the genomic RNA were cloned, and their nucleotide sequences were obtained. The genomic RNA was found to possess six C residues at the insertion site, whereas 63% of the P-gene-specific mRNA transcripts were found to have from two to five G residues inserted at this position in the RNA. An unedited mRNA was shown to encode the mumps virus cysteine-rich protein V, and mRNA transcripts containing two and four inserted G residues were translated to yield the mumps virus P and I proteins, respectively.
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