title: Proteins specified by avian erythroblastosis virus: coding region localization and identification of a previously undetected erb-B polypeptide.
abstract: Avian erythroblastosis virus (AEV) induces erythroblastosis and sarcomas in chickens. Two domains within the viral genome, erb-A and erb-B, have been implicated in AEV-mediated oncogenesis. By use of hybridization-arrested translations and hybridization-selections of mRNA, we have mapped on the viral genome the polypeptides specified by the erb domains. The results of hybridization-arrest with DNA representing the spliced 5' leader region of the AEV mRNA suggested that the authentic product of the erb-B domain was a 61,000 molecular weight protein, not a 41,000 molecular weight polypeptide previously identified.
mesh_terms: D001355:Alpharetrovirus / Q000235:genetics*; D000818:Animals; D001354:Avian Leukosis Virus / Q000235:genetics*; D002472:Cell Transformation, Viral; D002645:Chickens; D004912:Erythrocytes; D009693:Nucleic Acid Hybridization; D010455:Peptides / Q000235:genetics*; D010957:Plasmids; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000235:genetics; D012367:RNA, Viral / Q000235:genetics
chemical_list: D010455:Peptides; D012333:RNA, Messenger; D012367:RNA, Viral