METHOD FOR PRODUCING BETA-ALANYL-AMINO ACID OR DERIVATIVE THEREOF
    1.
    发明申请
    METHOD FOR PRODUCING BETA-ALANYL-AMINO ACID OR DERIVATIVE THEREOF 审中-公开
    生产β-氨基酸或其衍生物的方法

    公开(公告)号:US20110081678A1

    公开(公告)日:2011-04-07

    申请号:US12943509

    申请日:2010-11-10

    CPC分类号: C12P21/02 C07K5/0202 C12N9/48

    摘要: The present invention provides a method for efficiently producing a β-alanyl-amino acid (e.g., carnosine) or derivative thereof. Specifically, it provides a method for producing a β-alanyl-amino acid (e.g., β-alanyl-histidine) or derivative thereof, by reacting a β-alanyl ester or a β-alanyl amide and an amino acid or derivative thereof in the presence of an enzyme or an enzyme-containing product that has an ability to form the β-alanyl-amino acid (e.g., β-alanyl-histidine) or derivative thereof from the β-alanyl ester or the β-alanyl amide and the amino acid (e.g., histidine) or derivative thereof. The present invention also provides a protein which is able to catalyze production of a β-alanyl-amino acid or derivative thereof from a β-alanyl ester or a β-alanyl amide and an amino acid or derivative thereof, and a polynucleotide encoding said protein.

    摘要翻译: 本发明提供了一种有效生产β-丙氨酰 - 氨基酸(如肌肽)或其衍生物的方法。 具体地说,本发明提供了一种通过使β-丙氨酰基酯或一种 - 丙氨酰基酰胺与氨基酸或氨基酸反应生产β-丙氨酰 - 氨基酸(例如, - 丙氨酰 - 组氨酸)或其衍生物的方法 其衍生物在酶或含酶产物的存在下具有从丙氨酰酯形成β-淀粉氨基酸(例如,β-丙氨酰 - 组氨酸)或其衍生物的能力,或 丙氨酰酰胺和氨基酸(如组氨酸)或其衍生物。 本发明还提供一种蛋白质,其能够催化β-氨基丙氨酰 - 氨基酸或其衍生物从β-丙氨酰酯或其 - 氨基酸或其衍生物及其衍生物的产生,以及多核苷酸 编码所述蛋白质。

    Method for producing optically active IHOG and monatin
    4.
    发明授权
    Method for producing optically active IHOG and monatin 失效
    用于制备光学活性的IHOG和莫纳甜的方法

    公开(公告)号:US07354746B1

    公开(公告)日:2008-04-08

    申请号:US11609018

    申请日:2006-12-11

    CPC分类号: C12P17/10 C12N9/88

    摘要: The present invention relates to a method for producing optically active IHOG, which can in turn be used for the production of monatin. The present invention further relates to a method for producing optically active monatin, and an aldolase which can be used in these methods. As such, the present invention enables the synthesis of 4-(Indole-3-ylmethyl)-4-hydroxy-2-oxoglutaric acid with high optical purity, which is useful as an intermediate in the synthesis of optically active monatin, from indole pyruvic acid and pyruvic acid (or oxaloacetic acid).

    摘要翻译: 本发明涉及一种用于制备光学活性的IHOG的方法,其可以用于制备莫纳甜。 本发明还涉及可用于这些方法的光学活性莫纳甜的制备方法和醛缩酶。 因此,本发明能够合成具有高光学纯度的4-(吲哚-3-基甲基)-4-羟基-2-氧代戊二酸,其可用作在光学活性莫纳甜的合成中的吲哚丙酮酸的中间体 酸和丙酮酸(或草酰乙酸)。

    METHOD FOR PRODUCING MONATIN
    5.
    发明申请
    METHOD FOR PRODUCING MONATIN 审中-公开
    生产MONATIN的方法

    公开(公告)号:US20120295314A1

    公开(公告)日:2012-11-22

    申请号:US13455381

    申请日:2012-04-25

    IPC分类号: C12P17/10 C07H21/00 C12N9/10

    摘要: The present invention provides a method of producing 2R,4R-Monatin with a good yield using inexpensive L-Trp rather than expensive D-Trp as a stating material. Specifically, the present invention provides a method for producing 2R,4R-Monatin or a salt thereof, comprising: (1) contacting L-tryptophan with a deamination enzyme to form indole-3-pyruvate; (2) contacting the indole-3-pyruvate and pyruvate with an aldolase to form 4R-IHOG; and (3) contacting the 4R-IHOG with a D-aminotransferase in the presence of a D-amino acid to form the 2R,4R-Monatin; and the like. In (3), it is preferable to use a D-aminotransferase having no or low ability to form D-tryptophan from indole-3-pyruvate.

    摘要翻译: 本发明提供使用廉价的L-Trp而不是昂贵的D-Trp作为说明材料,以高产率制备2R,4R-莫纳甜的方法。 具体而言,本发明提供了制备2R,4R-莫纳他嗪或其盐的方法,其包括:(1)使L-色氨酸与脱氨酶接触以形成吲哚-3-丙酮酸盐; (2)使吲哚-3-丙酮酸和丙酮酸与醛缩酶接触以形成4R-1HOG; 和(3)在D-氨基酸存在下使4R-1HOG与D-氨基转移酶接触以形成2R,4R-莫纳甜; 等等。 在(3)中,优选使用不具有或低能力从吲哚-3-丙酮酸形成D-色氨酸的D-氨基转移酶。