MAP Kinase Kinase Kinase 3

**Definition:** A 70-kDa MAPK kinase kinase with specificity for MAP KINASE KINASE 5.

**Tree numbers:** - D08.811.913.696.620.682.700.559.300 - D12.776.476.563.554.300

**Synonyms:** - MAPK-ERK Kinase Kinase 3 - MEK Kinase 3 - ERK Kinase Kinase 3 - Mitogen-Activated Protein Kinase Kinase Kinase 3 - MAP3K3 Protein Kinase - MEKK3 Protein Kinase