26769 ERG4_ERG24 superfamilyThalassiosira pseudonana
GO:0016020 GO:0000246 -
Double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins.
delta24(24-1) sterol reductase activity
Catalysis of the reaction: ergosterol + NADP(+) = ergosta-5,7,22,24(24(1))-tetraen-3beta-ol + H(+) + NADPH.