title: An antigenically related tryptic polypeptide from several mammalian type C RNA virus p30s.
abstract: Limited tryptic digestion of p30 antigen (the major internal viral protein) of type C viruses isolated from hamster, rat, and gibbon ape yielded a polypeptide fragment with a molecular weight of approximately 10,000 daltons. Some antigenic determinants with interspecies specificity were retained on these polypeptides, which in serological tests cross-reacted with antibody produced previously against a similar fragment obtained from mouse p30. Exhaustive trypsinization resulted in further fragmentation with concomitant loss of serologic activity. The results suggest that all mammalian type C virus p30s have an antigenically related polypeptide core which is not readily digested by trypsin.
mesh_terms: D000818:Animals; D006224:Cricetinae; D000939:Epitopes; D006922:Hylobates; D009052:Leukemia Virus, Murine / Q000276:immunology; D010455:Peptides / Q000276:immunology*; D051381:Rats; D012190:Retroviridae / Q000276:immunology*; D014357:Trypsin; D014764:Viral Proteins / Q000276:immunology*
chemical_list: D000939:Epitopes; D010455:Peptides; D014764:Viral Proteins; D014357:Trypsin