Predominant mutation of codon 41 of the beta-catenin proto-oncogene in rat colon tumors induced by 1,2-dimethylhydrazine using a complete carcinogenic protocol.

Abstract excerpt

Constitutive activation of the wnt-signaling pathway plays an important role during both human and rat colon carcinogenesis and can be brought through mutations in either the adenomatous polyposis coli or the beta-catenin gene. Mutations found in the beta-catenin gene typically affect one out of four regulatory phosphorylation sites near the N-terminus of the beta-catenin protein. Whereas in human colon cancers,...

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