首页> 外国专利> - - Novel D-stereo specific amino acid amidase gene thereof preparation method thereof and production method of D-amino acid by using the same

- - Novel D-stereo specific amino acid amidase gene thereof preparation method thereof and production method of D-amino acid by using the same

机译:一种新型D-立体特异性氨基酸酰胺酶基因的制备方法及使用该基因的D-氨基酸的生产方法

摘要

PURPOSE: A novel D-stereo specific amino acid amidase, a gene thereof, a preparation method thereof and a production method of D-amino acid by using the same are provided, thereby producing high purity of D-amino acid. CONSTITUTION: The novel D-stereo specific amino acid amidase contains the N-terminal amino acid sequence of SEQ ID NO: 1. The gene encoding for the D-stereo specific amino acid amidase has the nucleotide sequence of SEQ ID NO: 2. A recombinant plasmid pDAP contains the gene of SEQ ID NO: 2. A transformant DH5/pDAP (KCTC 10009 BP) is produced by transformation with the recombinant plasmid pDAP. A recombinant vector pBDA contains the gene encoding the D-stereo specific amino acid amidase and having the nucleotide sequence of SEQ ID NO: 4. A transformant XL1-Blue/pBDA is produced by transformation with the recombinant vector pBDA. The method for producing the D-amino acid comprises by the steps of: recovering the D-stereo specific amino acid amidase from the transformants DH5/pDAP or XL1-Blue/pBDA cultured medium, and preparing D-amino acid from DL-amino acid amide using the D-stereo specific amino acid amidase.
机译:用途:提供新颖的D-立体特异性氨基酸酰胺酶,其基因,其制备方法和使用其的D-氨基酸的生产方法,从而产生高纯度的D-氨基酸。组成:新型D-立体特异性氨基酸酰胺酶含有SEQ ID NO:1的N端氨基酸序列。编码D-立体特异性氨基酸酰胺酶的基因具有SEQ ID NO:2的核苷酸序列。重组质粒pDAP含有SEQ ID NO:2的基因。通过用重组质粒pDAP转化产生了转化体DH5 / pDAP(KCTC 10009 BP)。重组载体pBDA含有编码D-立体特异性氨基酸酰胺酶并具有SEQ ID NO:4的核苷酸序列的基因。通过用重组载体pBDA转化产生转化体XL1-Blue / pBDA。产生D-氨基酸的方法包括以下步骤:从转化体DH5 / pDAP或XL1-Blue / pBDA培养基中回收D-立体特异性氨基酸酰胺酶,并从DL-氨基酸制备D-氨基酸。酰胺使用D-立体特异性氨基酸酰胺酶。

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