α-Mannosidase is an acid hydrolase which is located in plant vacuoles and is thought to be involved with the turnover of N-linked glycoproteins. α-Mannosidase has been shown to inhibit the proliferation of B-lymphocytes.http://www.creative-enzymes.com/product/-Mannosidase-92L-From-Bacteroides-Thetaiotaomicron-Recombinant_3673.html