Mannan 1,2-(1,3)-α-mannosidase

Mannan 1,2-(1,3)-α-mannosidase (, exo-1,2-1,3-α-mannosidase, 1,2-1,3-α- D -mannan mannohydrolase) is an enzyme with systematic name (1→2)-(1→3)-α- D -mannan mannohydrolase. It catalyses the hydrolysis of (1→2)- and (1→3)-linkages in yeast mannan, releasing mannose.

A 1,6-α- D -mannan backbone remains after action on yeast mannan.