ID 1.3.1.72 DE Delta(24)-sterol reductase. AN Lanosterol Delta(24)-reductase. CA 5-alpha-cholest-7-en-3-beta-ol + NADP(+) = 5-alpha-cholesta-7,24-dien-3- CA beta-ol + NADPH. CC -!- Acts on a range of steroids with a 24(25)-double bond, including CC lanosterol, desmosterol and zymosterol. DR Q15392, DHC24_HUMAN; Q60HC5, DHC24_MACFA; Q8VCH6, DHC24_MOUSE; DR Q5BQE6, DHC24_RAT ; Q39085, DIM_ARATH ; P93472, DIM_PEA ; //