NCIt synonyms : p21 RAS Family Protein; p21; p21(RAS); Transforming Protein p21; p21ras;
NCIt definition : Cellular protein encoded by the RAS genes. The protein has intrinsic 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.;