Serine/Threonine Kinase Inhibitor

**Semantic type:** Chemical Viewed Functionally

**Definition:** Any substance that inhibits serine/threonine protein kinase, an enzyme that phosphorylates the hydroxyl group of serine or threonine on various proteins in various signaling cascades. Inhibition of serine/threonine protein kinase can inhibit cell proliferation and induce apoptosis.