alpha-Mannosidase (,
alpha-D-mannosidase,
p-nitrophenyl-alpha-mannosidase,
alpha-D-mannopyranosidase,
1,2-alpha-mannosidase,
1,2-alpha-D-mannosidase,
exo-alpha-mannosidase) is an
enzyme involved in the cleavage of the alpha form of
mannose. Its system name is
alpha-D-mannoside mannohydrolase.