这个词是什么意思？
A family of closely-related serine-threonine kinases that were originally identified as the cellular homologs of the retrovirus-derived V-RAF KINASES. They are MAP kinase kinase kinases that play important roles in SIGNAL TRANSDUCTION.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D048490 · MeSH 2026。
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