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methylamine dehydrogenase (amicyanin) light chain This family consists of the light chain of methylamine dehydrogenase light chain, a periplasmic enzyme. This subunit contains a tryptophan tryptophylquinone (TTQ) prothetic group derived from Trp-114 and Trp-165 of the precursor, numbered according to the sequence from Paracoccus denitrificans. The enzyme forms a complex with the type I blue copper protein amicyanin and cytochrome. Electron transfer procedes from TQQ to the copper and then to the heme group of the cytochrome. [Energy metabolism, Amino acids and amines]
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