Crystal structure of Trypanothione Reductase from Trypanosoma brucei in complex with inhibitor (+)-N-(Cyclobutylmethyl)-3-{5-[1-(pyrrolidin-1-yl)cyclohexyl]-2-(1-{[(2S)-pyrro-lidin-2-yl]methyl}-1H-indol-5-yl)-1,3-thiazol-4-yl}prop-2-yn-1-amine
This family includes both class I and class II oxidoreductases and also NADH oxidases and peroxidases. This domain is actually a small NADH binding domain within a larger FAD binding domain.