FIG 5.
Optimal pHs for purified recombinant 12α-hydroxysteroid dehydrogenases. Substrates were 12-oxoLCA with NADPH as cofactor (reductive direction, red) or DCA with NADP+ as cofactor (oxidative direction, blue). See Materials and Methods for buffer compositions. Experiments were repeated three or more times; values represent means ± standard deviation (SD).