_:vb953556 . "Enzyme"^^ . _:vb953557 . _:vb953460 . _:vb953557 . . _:vb953454 . . _:vb953556 . . "A specific catalytic activity, defined by the Enzyme Commission of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB)."^^ . . . _:vb953467 . _:vb953450 . . .