Mitogen-Activated Protein Kinase Kinase Inhibitor

**Semantic type:** Chemical Viewed Functionally

**Definition:** Any substance that inhibits mitogen-activated protein kinase kinase (MEK), an enzyme that catalyzes the addition of a phosphate group to a mitogen-activated protein kinase. Inhibition of mitogen-activated protein kinase kinase results in the inhibition of cell proliferation.

**Synonyms:** - MAP2K Inhibitor - MAPK/ERK Kinase Inhibitor - MAPKK Inhibitor - MEK Inhibitor - MKK Inhibitor