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Protein-coding gene in the species Saccharomyces cerevisiae S288c
ERG4 or Delta(24(24(1)))-sterol reductase or Delta(24(28))-sterol reductase is an enzyme that catalyzes the last step of ergosterol biosynthesis pathway in fungiSaccharomyces cerevisiae (Baker's yeast), which 5,7,22,24(28)-ergostatetraenol converted into ergosterol.