5alpha-cholesta-7,24-dien-3beta-ol + NADPH + O2 + H(+) = 7-dehydrodesmosterol + NADP(+) + 2 H2O
5alpha-cholesta-7,24-dien-3beta-ol + nadph + o2 + h(+) = 7-dehydrodesmosterol + nadp(+) + 2 h2o
5alpha-cholesta-7,24-dien-3beta-ol + NADPH + O2 + H(+) = 7-dehydrodesmosterol + NADP(+) + 2 H2O
5alpha-cholesta-7,24-dien-3beta-ol + nadph + o2 + h(+) = 7-dehydrodesmosterol + nadp(+) + 2 h2o