Abstract
Numerous oncogenes have been isolated from acutely transforming retroviruses. To date, the products of these viral oncogenes have been protein kinases, nuclear proteins, growth factors, or GTP-binding proteins1,2. We have cloned the previously uncharacterized avian sarcoma virus CT10 and sequenced its genome. This virus encodes a protein, p47gag-crk, that has blocks of sequence similarity to the amino-terminal, non-catalytic region of the non-receptor class of tyrosine kinases. In addition, the structure of p47gag-crk has striking similarity to a 180-amino acid region of bovine brain phospholipase C. Biochemical data suggest that p47gag-crk activates one or several endogenous tyrosine kinases.
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Mayer, B., Hamaguchi, M. & Hanafusa, H. A novel viral oncogene with structural similarity to phospholipase C. Nature 332, 272–275 (1988). https://doi.org/10.1038/332272a0
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DOI: https://doi.org/10.1038/332272a0
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