Three independent isolates of feline sarcoma virus code for three distinct gag-x polyproteins.
AUTOR(ES)
Ruscetti, S K
RESUMO
Cells nonproductively transformed by the Snyder-Theilen, Gardner-Arnstein, and McDonough strains of feline sarcoma virus synthesize gag-x polyproteins of 78,000, 100,000, and 180,000 daltons, respectively. These feline sarcoma virus-coded products were precipitated by antisera to polypeptides encoded by the gag gene of feline leukemia virus and by rat antisera raised to feline sarcoma virus-transformed rat tumor cells. Precipitation with rat antisera absorbed with feline leukemia virus showed that the x-portions of the three gag-x proteins were each antigenically distinct, suggesting that the src genes of the three independent isolates are not identical. Anti-x sera did not precipitate products from radiolabeled cat lymphoid tumor cells (FL74) and therefore lacked reactivity to the feline leukemia virus-induced tumor-specific antigen, FOCMA.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=288804Documentos Relacionados
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