Identification, biological characteristics and the active site residues of 3-ketosteroid Δ1-dehydrogenase homologues from Arthrobacter simplex

3-Ketosteroid Δ1-dehydrogenase (KsdD) is the key enzyme responsible for Δ1- dehydrogenation, which is one of the most valuable reactions for steroids catabolism. Arthrobacter simplex has been widel...