Abstract
The avian sarcoma virus 16 (ASV 16) is a retrovirus that induces hemangiosarcomas in chickens. Analysis of the ASV 16 genome revealed that it encodes an oncogene that is derived from the cellular gene for the catalytic subunit of phosphoinositide 3-kinase (PI 3-kinase). The gene is referred to as v-p3k, and like its cellular counterpart c-p3k, it is a potent transforming gene in cultured chicken embryo fibroblasts (CEFs). The products of the viral and cellular p3k genes have PI 3-kinase activity. CEFs transformed with either gene showed elevated levels of phosphatidylinositol 3,4-bisphosphate and phosphatidylinositol 3,4,5-trisphosphate and activation of Akt kinase.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Amino Acid Sequence
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Animals
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Avian Sarcoma Viruses / genetics*
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Avian Sarcoma Viruses / physiology
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Cell Transformation, Neoplastic*
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Cell Transformation, Viral*
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Cells, Cultured
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Chick Embryo
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Chickens
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Cloning, Molecular
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Enzyme Activation
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Genes, Viral
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Hemangiosarcoma / genetics
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Hemangiosarcoma / virology
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Molecular Sequence Data
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Oncogenes*
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Phosphatidylinositol 3-Kinases
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Phosphatidylinositol Phosphates / metabolism
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Phosphotransferases (Alcohol Group Acceptor) / genetics*
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Phosphotransferases (Alcohol Group Acceptor) / metabolism
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Platelet-Derived Growth Factor / pharmacology
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Protein Serine-Threonine Kinases / metabolism
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Proto-Oncogene Proteins / metabolism
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Proto-Oncogene Proteins c-akt
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Signal Transduction
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Transfection
Substances
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Phosphatidylinositol Phosphates
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Platelet-Derived Growth Factor
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Proto-Oncogene Proteins
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phosphatidylinositol 3,4,5-triphosphate
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phosphatidylinositol 3,4-diphosphate
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Phosphotransferases (Alcohol Group Acceptor)
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Protein Serine-Threonine Kinases
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Proto-Oncogene Proteins c-akt
Associated data
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GENBANK/AF001075
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GENBANK/AF001076