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POMT2, also known as Protein-O-Mannosyltransferase 2, is an O-mannosyltransferase that must interact with POMT1 for proper enzymatic function. POMT2 is localized to the Endoplasmic Reticulum membrane, and is ubiquitously expressed at low levels, however highly expressed in the testes. Current research surrounding POMT2 has shown a connection with autosomal recessive muscular dystrophy, as well as possible interactions with Walker-Warburg syndrome, cleft palate, and malaria. POMT2 interacts with POMT1, ALG3, ALG6, ARPC3, and ATP13A1.