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Common Features of the Yes and Src Gene Products Defined by Peptide-specific Antibodies

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Journal J Virol
Date 1984 Aug 1
PMID 6205173
Citations 11
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Abstract

Anti-peptide antibodies generated against a hydrophilic domain of pp60src comprising amino acid residues 498 through 512 were shown to be cross-reactive with the corresponding region in the yes transforming proteins encoded by Yamaguchi 73 and Esh sarcoma viruses. This cross-reactivity was demonstrated by immunoblot and immunoprecipitation analyses, and the identity of the proteins was verified by partial proteolytic mapping. By utilizing a combination of immunofluorescence and interference-reflection microscopy, these cross-reactive anti-peptide antibodies were shown to produce an immunofluorescence staining pattern in Yamaguchi 73 and Esh sarcoma virus-transformed chicken embryo fibroblasts remarkably similar to that pp60src in Rous sarcoma virus-infected chicken cells. Like the src gene products, the yes transformation-specific polyproteins were found to be concentrated within adhesion plaque structures and needle-like interdigitating cell-cell junctions. This analogous subcellular distribution suggests that these onc proteins are functionally related and may share common intracellular targets.

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