MYO18A Proteins and Enzymes

Myo18A/Myosin XVIIIA is an unconventional myosin that contains a lysine and glutamine (KE)-rich domain and a PDZ domain. The KE and PDZ domains appear to direct subcellular localization of the Myo18A variants. It is a dimeric actin binding protein that may play a role in the stabilization and organization of the actin cytoskeleton. Recently a cell surface form of Myo18A has been identified as the receptor for surfactant protein A, a lipid-associated lung collectin that mediates innate and adaptive immune responses in the lungs.