Function 
Microtubule_associated serine/threonine kinase (MAST) belongs to a family of proteins which contain a  serine/threonine kinase domain and a PDZ domain.
- MAST1 associates with the cytoskeleton and can bind through its PDZ domain both β-2-synthrophin and neuronal nitric oxide synthase.  
- MAST2 regulates lipopolysaccharide-induced IL-12 synthesis.