| proto-oncogene protein p21(ras) | Cellular protein encoded by the c-ras genes. The protein has GTPase activity and is involved in transmembrane signal transduction as a guanine nucleotide binding protein. Elevated levels of p21 c-ras have been associated with neoplasia. (12 Dec 1998) |
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| h-ras | <oncogene> A point-mutated proto-oncogene that is found in melanoma and in carcinoma of colon, lung and pancreatic tissue. (10 Oct 1997) |
| oncogene protein p21(ras) | Transforming protein encoded by ras oncogenes. Point mutations in the cellular ras gene (c-ras) can also result in a mutant p21 protein that can transform mammalian cells. Oncogene protein p21(ras) has been directly implicated in human neoplasms, perhaps accounting for as much as 15-20% of all human tumours. (12 Dec 1998) |
| k-ras | <oncogene> A proto-oncogene that has point mutations and is associated with melanoma, thyroid carcinoma, and acute myelogenous and lymphoblastic leukaemia. (09 Oct 1997) |