. "\"Catalysis of the reaction: cholesterol + NADP+ = cholesta-5,7-dien-3-beta-ol + NADPH + H+.\" [EC:1.3.1.21]" . . "7-dehydrocholesterol reductase activity" . "7-DHC reductase activity" . "cholesterol:NADP+ delta7-oxidoreductase activity" . "sterol delta7-reductase activity" . "EC:1.3.1.21" . "MetaCyc:RXN66-323" . "Reactome:REACT_10029 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Homo sapiens\"" . "Reactome:REACT_102740 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Bos taurus\"" . "Reactome:REACT_103448 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Rattus norvegicus\"" . "Reactome:REACT_78943 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Mus musculus\"" . "Reactome:REACT_79896 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Taeniopygia guttata\"" . "Reactome:REACT_80775 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Arabidopsis thaliana\"" . "Reactome:REACT_81232 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Gallus gallus\"" . "Reactome:REACT_81435 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Caenorhabditis elegans\"" . "Reactome:REACT_92821 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Oryza sativa\"" . "Reactome:REACT_93761 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Danio rerio\"" . "Reactome:REACT_96623 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Canis familiaris\"" . "Reactome:REACT_98689 \"Cholesta-5,7,24-trien-3beta-ol is reduced to desmosterol, Xenopus tropicalis\"" . "RHEA:23987" . . "sterol Delta(7)-reductase activity" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .