Isoprenoid compounds
    1.
    发明授权
    Isoprenoid compounds 有权
    异戊二烯类化合物

    公开(公告)号:US08609371B2

    公开(公告)日:2013-12-17

    申请号:US12540050

    申请日:2009-08-12

    摘要: The present invention is directed to variant squalene synthase enzymes, including Saccharomyces cerevisiae squalene synthase enzymes, and to nucleic acid molecules encoding these variant enzymes. These variant enzymes produce squalene at a lower rate than the wild-type enzyme, allowing more farnesyl pyrophosphate to be utilized for production of isoprenoid compounds, while still producing sufficient squalene to allow the S. cerevisiae cells to grow without the requirement for supplementation by sterols such as ergosterol. These variant enzymes, therefore, are highly suitable for the efficient production of isoprenoids.

    摘要翻译: 本发明涉及变体角鲨烯合酶,包括酿酒酵母角鲨烯合酶,以及编码这些变体酶的核酸分子。 这些变体酶以比野生型酶低的速率产生角鲨烯,允许更多的法呢基焦磷酸盐用于生产异戊二烯化合物,同时仍然产生足够的角鲨烯以允许酿酒酵母细胞生长而不需要由甾醇补充 如麦角甾醇。 因此,这些变体酶非常适合有效生产类异戊二烯。

    Materials and methods for biosynthesis of serine and serine-related
products
    9.
    发明授权
    Materials and methods for biosynthesis of serine and serine-related products 失效
    生物合成丝氨酸和丝氨酸相关产物的材料和方法

    公开(公告)号:US5856148A

    公开(公告)日:1999-01-05

    申请号:US797727

    申请日:1997-02-11

    IPC分类号: C12N9/04 C12N15/53

    CPC分类号: C12N9/0006

    摘要: Engineered DNA encoding 3-phosphoglycerate dehydrogenase (PGD) has reduced sensitivity to inhibition by serine in comparison to wild-type PGD. The DNA encodes PGD which has at least some level of enzymatic activity useful for biosynthesis, and which retains that activity at higher serine levels than does the (unmodified) wild-type PGD. The PGD has the amino acid sequence of this above-described engineered DNA. Expression vectors contain this engineered DNA and regulatory DNA positioned and oriented for expression of the engineered DNA in a host expression system. Cells contain these expression vectors, and a method for producing serine or a serine-derived product includes culturing such cells.

    摘要翻译: 与野生型PGD相比,编码3-磷酸甘油酸脱氢酶(PGD)的工程DNA降低了对丝氨酸抑制的敏感性。 DNA编码PGD,其具有至少一些可用于生物合成的酶活性水平,并且在野生型(未修饰的)野生型PGD中保留比丝氨酸水平更高的活性。 PGD​​具有上述工程DNA的氨基酸序列。 表达载体含有这种工程化的DNA和调节DNA,其定位并定向于在宿主表达系统中表达工程化的DNA。 细胞含有这些表达载体,制备丝氨酸或丝氨酸衍生产物的方法包括培养这些细胞。

    Materials and methods for biosynthesis of serine and serine-related
products
    10.
    发明授权
    Materials and methods for biosynthesis of serine and serine-related products 失效
    生物合成丝氨酸和丝氨酸相关产物的材料和方法

    公开(公告)号:US5618716A

    公开(公告)日:1997-04-08

    申请号:US244491

    申请日:1994-05-24

    CPC分类号: C12N9/0006 C12P13/06

    摘要: Engineered DNA encoding 3-phosphoglycerate dehydrogenate (PGD) has reduced sensitivity to inhibition by serine in comparison to wild-type PGD. The DNA encodes PGD which has at least some level of enzymatic activity useful for biosynthesis, and which retains that activity at higher serine levels than does the (unmodified) wild-type PGD. The PGD has the amino acid sequence of this above-described engineered DNA. Expression vectors contain this engineered DNA and regulatory DNA positioned and oriented for expression of the engineered DNA in a host expression system. Cells contain these expression vectors, and a method for producing serine or a serine-derived product includes culturing such cells.

    摘要翻译: PCT No.PCT / EP92 / 01873 Sec。 371日期:1994年5月24日 102(e)日期1994年5月24日PCT提交1992年8月17日PCT公布。 出版物WO93 / 12235 日期1993年6月24日编号3-磷酸甘油酸脱氢酶(PGD)的工程DNA比野生型PGD降低了对丝氨酸抑制的敏感性。 DNA编码PGD,其具有至少一些可用于生物合成的酶活性水平,并且在野生型(未修饰的)野生型PGD中保留比丝氨酸水平更高的活性。 PGD​​具有上述工程DNA的氨基酸序列。 表达载体含有这种工程化的DNA和调节DNA,其定位并定向于在宿主表达系统中表达工程化的DNA。 细胞含有这些表达载体,制备丝氨酸或丝氨酸衍生产物的方法包括培养这些细胞。