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    • 62. 发明申请
    • METHOD FOR PRODUCING BETA-ALANYL-AMINO ACID OR DERIVATIVE THEREOF
    • 生产β-氨基酸或其衍生物的方法
    • US20110081678A1
    • 2011-04-07
    • US12943509
    • 2010-11-10
    • Rie TakeshitaYasuaki TakakuraShunichi SuzukiKenzo Yokozeki
    • Rie TakeshitaYasuaki TakakuraShunichi SuzukiKenzo Yokozeki
    • C12P21/02C07H21/04C12N9/00C12N5/10
    • C12P21/02C07K5/0202C12N9/48
    • 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.
    • 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。