Abstract: Methods of diagnosing cancer and screening for an anti-cancer drug using Ras are provided. Ras has a very significant role as a prevalent proto-oncogene which has abnormalities in most forms of cancer, and thus the methods of diagnosing cancer and screening for an anti-cancer drug using Ras may be applied to various forms of cancer. The generation of various forms of cancer in the early stages may be determined by examining whether or not phosphorylation of Ras occurs at Thr-144 and Thr-148 sites. By such a mechanism, an anti-cancer drug having excellent anti-cancer effectiveness may be screened, or the effectiveness of the anti-cancer drug may be tested.

Abstract: Methods of diagnosing cancer and screening for an anti-cancer drug using Ras are provided. Ras has a very significant role as a prevalent proto-oncogene which has abnormalities in most forms of cancer, and thus the methods of diagnosing cancer and screening for an anti-cancer drug using Ras may be applied to various forms of cancer. The generation of various forms of cancer in the early stages may be determined by examining whether or not phosphorylation of Ras occurs at Thr-144 and Thr-148 sites, By such a mechanism, an anti-cancer drug having excellent anti-cancer effectiveness may be screened, or the effectiveness of the anti-cancer drug may be tested.