Amine Dehydrogenase (), also known as methylamine dehydrogenase (MADH), is a tryptophan tryptophylquinone-dependent (TTQ-dependent) enzyme that catalyzes the oxidative deamination of a primary amine to an aldehyde and ammonia.
A specific type of enzyme, methylamine dehydrogenase (MADH), also referred to as amine dehydrogenase (), is a TTQ-dependent enzyme that facilitates the oxidation of primary amines into corresponding aldehydes and ammonia.