1HXH:
reference: Structure of bacterial 3beta/17beta-hydroxysteroid dehydrogenase at 1.2 A resolution: a model for multiple steroid recognition., Benach J, Filling C, Oppermann UC, Roversi P, Bricogne G, Berndt KD, Jornvall H, Ladenstein R, Biochemistry 2002 Dec 17;41(50):14659-68. PMID: 12475215

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