Ras-related TC21 is activated by mutation in a breast cancer cell line, but infrequently in breast carcinomas in vivo.

Abstract excerpt

Activating ras mutations are found in many types of human tumour. Mutations in Harvey (H-), Kirsten (K-) and neuronal (N-) ras are, however, rarely found in breast carcinomas. TC21 is a ras family member that shares close homology to H-, K- and N-ras, and activating mutations have been found in ovarian carcinoma and leiomyosarcoma cell lines. We have examined panels of cDNAs from breast, ovarian and cervical cell...

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