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    • 3. 发明申请
    • ENGINEERED MICROORGANISMS FOR PRODUCTION OF COMMODITY CHEMICALS AND CELLULAR BIOMASS
    • 用于生产商品化学品和细胞生物质的工程微生物
    • WO2018067458A1
    • 2018-04-12
    • PCT/US2017/054759
    • 2017-10-02
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    • DUEBER, John E.PROTZKO, Ryan Joseph
    • C12N9/00C12N9/04C12N15/53C12N15/00C12P7/58C12P7/44
    • The present disclosure provides methods of producing commodity products, the methods involving culturing a host cell that is genetically modified to produce a uronate dehydrogenase (UDH) that converts a sugar acid to its corresponding 1,5-aldonolactone, that uses NADP + or NAD + as a cofactor, and that produces NADPH or NADH, respectively, where the host cell coexpresses an endogenous or a heterologous reductase that utilizes the produced NADPH or NADH to generate the commodity product or a precursor thereof. The present disclosure provides a method of producing downstream products of glycerol and pyruvate in a genetically modified microbial host cell, the method involving culturing a genetically modified microbial host cell of the present disclosure in a culture medium comprising D-galacturonic acid. The present disclosure provides variant UDH polypeptides that utilize NADP + , nucleic acids encoding the variant UDH polypeptides; and host cells genetically modified with the nucleic acids.
    • 本发明提供了生产商品的方法,所述方法包括培养经遗传修饰的宿主细胞以产生糖醛酸脱氢酶(UDH),所述糖醛酸脱氢酶将糖酸转化为其相应的1,5-醛糖内酯 ,其使用NADP +或NAD +作为辅因子,并且分别产生NADPH或NADH,其中宿主细胞共表达利用产生的内源或异源还原酶 NADPH或NADH以产生商品产品或其前体。 本公开内容提供了一种在遗传修饰的微生物宿主细胞中生产甘油和丙酮酸的下游产物的方法,所述方法包括在包含D-半乳糖醛酸的培养基中培养本公开的遗传修饰的微生物宿主细胞。 本公开提供了利用NADP +,编码变体UDH多肽的核酸的变体UDH多肽; 和用核酸遗传修饰的宿主细胞。