Inhibitors of serine/threonine kinases.

Several serine/threonine kinase inhibitors have been described recently that are sufficiently selective, and therefore useful as biochemical probes, for studying the role of kinases in signaling pathways. In addition, these newer classes of kinase inhibitor may well provide an impetus for the development of drugs to attenuate certain cellular responses in the treatment of diseases. Importantly, within the past year, specific and potent inhibitiors have been reported for both the new mitogen-activated protein (MAP) kinase homolog CSBP and MAP kinase kinase-1.