例文
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- Genetic analysis indicated that CDC25 is essential for activation of RAS proteins.
- This function is novel and not typically associated with the Ras proteins.
- The protein encoded by this gene is a human guanine nucleotide releasing protein for Ras protein.
- Mutations in " ras " genes can lead to the production of permanently activated Ras proteins.
- Human breast cancer often expresses and appears promoted by Ras proteins ( see carcinogenesis and the Ras subfamily ).