Name the type of subunits that form amylase

Amylase is an enzyme that catalyzes the hydrolysis of starch into simple sugars. All amylases are glycoside hydrolases and act on α-1,4-glycosidic bonds. There are four classification of amalyses which are the alpha-amylase, beta-amylase and the gamma-amylase. Hope this helps.

Amight be the answer