title: Bunyavirus nucleoprotein, N, and a non-structural protein, NSS, are coded by overlapping reading frames in the S RNA.
abstract: It has been shown previously, by sequence analysis of the S RNA segment of snowshoe hare (SSH) bunyavirus, that two overlapping open reading frames in the viral complementary sequence code for proteins with molecular weights of 26.8 X 10(3) and 10.5 X 10(3) respectively. In addition to the viral nucleocapsid (N) protein, which is coded by the S RNA, analyses of parental and reassortant bunyavirus-infected cell extracts have shown that the viral S RNA and M RNA species each code for non-structural proteins (NSS and NSM, respectively). In the present report, in vitro translation analyses of the S mRNA species recovered from virus-infected cells indicate that a single size class of mRNA directs the synthesis of N and NSS. Compositional analyses of selected tryptic peptides of N and NSS have provided proof that N is the product of the first open reading frame, and NSS the product of the second.
mesh_terms: D002043:Bunyaviridae / Q000235:genetics*; D002213:Capsid / Q000032:analysis / Q000235:genetics; D002141:Encephalitis Virus, California / Q000235:genetics*; D005814:Genes, Viral; D010455:Peptides / Q000032:analysis; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000235:genetics; D012367:RNA, Viral / Q000235:genetics*; D017361:Viral Nonstructural Proteins; D014764:Viral Proteins / Q000032:analysis / Q000235:genetics*
chemical_list: D010455:Peptides; D012333:RNA, Messenger; D012367:RNA, Viral; D017361:Viral Nonstructural Proteins; D014764:Viral Proteins