The present disclosure relates to a method for preparing an optically active amino acid using cosubstrate shuttling of transaminase. The method includes coupling a reaction of converting a keto acid to an amino acid by α-transaminase and a reaction of transferring an amino group of an amine substrate by ω-transaminase (TA) using an amino acid cosubstrate. The present disclosure allows production of various optically active amino acids with high purity and high efficiency by solving the low equilibrium constant problem of transaminase and is applicable to production of various optically active amino acids in industrial scale. Since the present disclosure allows easy production of various unnatural amino acids having high reactivity and stability, which are used as pharmaceutical precursors, it can be usefully employed in preparation of pharmaceuticals, food additives and various animal feeds.
本公开涉及使用共基底穿梭转
氨酶的方法制备光学活性
氨基酸。该方法包括使用
氨基酸共基底耦合α-转
氨酶将
酮酸转化为
氨基酸的反应和使用ω-转
氨酶(TA)转移胺基底物的胺基的反应。本公开解决了转
氨酶低平衡常数问题,可高效高纯度地生产各种光学活性
氨基酸,并适用于工业规模生产。由于本公开允许轻松生产具有高反应性和稳定性的各种非天然
氨基酸,这些
氨基酸可用作制药前体,因此可以在制备药物、
食品添加剂和各种动物饲料方面得到有用的应用。