title: Mutation analysis of cis-elements in the 3'- and 5'-untranslated regions of satellite tobacco necrosis virus strain C RNA.
abstract: The putative, 3'-terminal stem-loop structure in satellite tobacco necrosis virus strain C (STNV-C) RNA constitutes an essential cis-acting structure for the promotion of negative-strand RNA synthesis and a single-stranded tail is also important. The putative, 5'-terminal stem-loop structure in STNV-C RNA is not essential for productive, plus-strand RNA accumulation but is required for optimal accumulation. Residues 2 and 3 are the minimal cis-acting sequences required for RNA synthesis. The RNA of chimeric mutants, which exchanged 3'- and 5'-untranslated regions between STNV-C and helper tobacco necrosis virus strain D RNAs, accumulated in protoplasts, implying similar replication mechanisms for both RNAs.
authors.affiliation: Biology Department, Imperial College of Science, Technology and Medicine, Sir Alexander Fleming Building, Imperial College Road, London, SW7 2AZ, United Kingdom.
authors.forename: D H
authors.initials: DH
authors.lastname: Bringloe
authors.forename: C W
authors.initials: CW
authors.lastname: Pleij
authors.forename: R H
authors.initials: RH
authors.lastname: Coutts
mesh_terms: D020413:3' Untranslated Regions / Q000235:genetics*; D020121:5' Untranslated Regions / Q000235:genetics*; D001483:Base Sequence; D017931:DNA Primers; D006378:Helper Viruses / Q000235:genetics; D008969:Molecular Sequence Data; D009690:Nucleic Acid Conformation; D012367:RNA, Viral / Q000737:chemistry* / Q000235:genetics*; D019400:Tobacco mosaic satellite virus / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D020413:3' Untranslated Regions; D020121:5' Untranslated Regions; D017931:DNA Primers; D012367:RNA, Viral