title: Precursor polypeptides of caprine arthritis-encephalitis lentivirus structural proteins.
abstract: The synthesis of caprine arthritis-encephalitis virus structural proteins was analysed in infected cells labelled with [35S]methionine and [3H]glucosamine and by translation of virion RNA in vitro. Viral polypeptides were isolated from infected cell lysates or from in vitro translation products by immunoprecipitation with specific antisera and resolved by SDS-PAGE. Results indicated that the gag gene-encoded p28, p19 and p16 virion core proteins were formed by cleavage processing of a 55K Mr precursor with several intermediate polypeptides. The gp135 virion surface glycoprotein, encoded by the env gene, was formed by post-translational modification of a glycosylated precursor of 150K apparent Mr. This precursor was formed by glycosylation of a 90K primary env gene product.
authors.affiliation: Department of Veterinary Microbiology and Pathology, Washington State University, Pullman 99164.
authors.forename: W P
authors.initials: WP
authors.lastname: Cheevers
authors.forename: T A
authors.initials: TA
authors.lastname: Stem
authors.forename: D P
authors.initials: DP
authors.lastname: Knowles
authors.forename: T C
authors.initials: TC
authors.lastname: McGuire
mesh_terms: D014176:Protein Biosynthesis; D011498:Protein Precursors / Q000096:biosynthesis*; D012190:Retroviridae / Q000378:metabolism*; D012191:Retroviridae Proteins / Q000096:biosynthesis*; D014764:Viral Proteins / Q000096:biosynthesis*; D015678:Viral Structural Proteins
chemical_list: D011498:Protein Precursors; D012191:Retroviridae Proteins; D014764:Viral Proteins; D015678:Viral Structural Proteins