摘要：

Examines a dual specificity kinase that activates the Jun kinases (JNK) and p38 or Mpk2. Dependence of Ras-dependent protein kinase cascade on the protein kinase Raf-1, which activates the mitogen-activated protein kinases or extracellular signal-regulated kinases (MEK) dual specificity kinases; Identification of a dual-specificity kinase that activates JNK.

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