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    • 6. 发明申请
    • PRODUCTION OF NON-YEAST STEROLS BY YEAST
    • YEAST生产非YEAST STEROLS
    • US20120231495A1
    • 2012-09-13
    • US13510636
    • 2010-11-24
    • Hans-Peter HohmannMartin LehmannMuriel MerkammDenis Pompon
    • Hans-Peter HohmannMartin LehmannMuriel MerkammDenis Pompon
    • C12P33/06C12N15/53C12N15/81C12N1/19
    • C12P33/00C12N9/001C12N9/0067C12N9/0071C12N9/0083C12N9/1007C12P33/06
    • This invention relates to the production of 7-dehydrocholesterol, 25-hydroxy-7-dehydrocholesterol, and 25-hydroxy ergosterol in yeast such as Saccharomyces cerevisiae. It also related to various enzymes catalyzing the reduction of the double bond at position 24 of lanosterol, dimethyl zymosterol, methyl zymosterol, zymosterol, cholesta-7, 24-dienol, or cholesta-5,7,24-trienol; or the hydroxylation at position 25 of ergosterol, 7-dehydrocholesterol, cholesta-8-enol, and cholesta-7-enol. It also relates to various nucleic acids encoding cholesterol C25-hydroxylases and sterol Δ24-reductases and their use to produce and hydroxylate 7-dehydrocholesterol or ergosterol. It also relates to the yeast strains so produced, and methods of making these sterols comprising the steps of cultivation a transformed yeast cell, and harvesting the resulting sterol(s).
    • 本发明涉及酵母如酿酒酵母中7-脱氢胆固醇,25-羟基-7-脱氢胆固醇和25-羟基麦角甾醇的生产。 它还涉及催化羊毛甾醇,二甲基十八烷醇,甲基十八醇,十八酮,胆甾烯-7,24-二烯醇或胆石酯-5,7,24-三烯酚在位置24处双键还原的各种酶。 或麦角甾醇,7-脱氢胆固醇,胆甾烯-8-烯醇和胆甾烯-7-烯醇在25位的羟基化。 它还涉及编码胆固醇C25-羟化酶和甾醇和Dgr; 24-还原酶的各种核酸,以及它们用于产生7-羟基胆固醇或麦角固醇羟基化的用途。 它还涉及如此制备的酵母菌株,以及制备这些甾醇的方法包括培养转化的酵母细胞的步骤,并收获所得的甾醇。