고온성 절대 공생 미생물 심비오박테리움의 공생균주인 고온성 미생물 바실러스속 균주 유래의 내열성 글루타메이트라세마아제를 암호하는 유전자 및 이를 이용한 내열성 글루타메이트라세마아제의 제조방법

    公开(公告)号:KR100251523B1

    公开(公告)日:2000-04-15

    申请号:KR1019970060212

    申请日:1997-11-15

    Abstract: PURPOSE: Provided is a gene coding thermostable glutamateracemase(GluRA) originated from a thermophile Bacillus sp. strain, a symbiotic strain of thermophilic absolute symbiont, a Symbiobacterium. And a preparation method of thermostable glutamateracemase is also provided. The glutamateracemase has excellent activity and enzymatic stability at high temperature, and is thus useful as biological catalyst in preparation of D-glutamic acid. CONSTITUTION: A gene of glutamateracemase(GluRA) originated from a thermophile Bacillus sp. strain has base sequence represented by the sequence 1. The method for preparation of thermostable glutamateracemase is composed of the following steps of: (a) culturing microbes transformed with the expression vector pGSK23 to express GluRA; (b) heating stem cell eluate obtained from the expressed GluRA; and (c) separation GluRA by non ion exchange chromatography and nonhydrophilic chromatography.

    Abstract translation: 目的:提供源自嗜热芽孢杆菌属的热稳定性谷氨酰胺酶(GluRA)的基因。 菌株,嗜热绝对共生体的共生菌株,共生杆菌。 还提供了一种耐热谷氨酰胺酶的制备方法。 谷氨酰胺酶在高温下具有优异的活性和酶稳定性,因此可用作制备D-谷氨酸的生物催化剂。 构成:源自嗜热杆菌芽孢杆菌的谷氨酰胺酶(GluRA)基因。 菌株具有由序列1表示的碱基序列。制备耐热谷氨酰胺酶的方法由以下步骤组成:(a)培养用表达载体pGSK23转化的微生物表达GluRA; (b)加热从表达的GluRA获得的干细胞洗脱液; 和(c)通过非离子交换层析和非亲水层析分离GluRA。

    고온성미생물바실러스속균주유래의내열성D-아미노산아미노트랜스퍼라아제를암호하는유전자및이를이용한D-아미노산아미노트랜스퍼라아제의제조방법

    公开(公告)号:KR100251524B1

    公开(公告)日:2000-04-15

    申请号:KR1019970060213

    申请日:1997-11-15

    Abstract: PURPOSE: Provided is a gene coding thermostable D-amino acid aminotransferase originated from thermophile Bacillus sp. strain, symbiotic strain of thermophilic absolute symbiont, Symbiobacterium. And a preparation method of thermostable D-amino acid aminotransferase is also provided. The prepared D-amino acid aminotransferase has broad substrate specificity and excellent activity at high temperature to be useful as biological catalyst in the preparation of D-amino acid. CONSTITUTION: A gene of D-amino acid aminotransferase originated from thermophile Bacillus sp. strain has base sequence represented by the sequence 1a and 1b. The THERMODURIC D-amino acid aminotransferase is prepared by culturing an E.coli transformant XL1-Blue/pDSK01 transformed by an expression vector pDSK 01 including the gene for D-amino acid aminotransferase, to express D-amino acid transferase.

    Abstract translation: 目的:提供源自嗜热芽孢杆菌属的热稳定性D-氨基酸氨基转移酶的基因。 菌株,嗜热绝对共生菌的共生菌株,共生杆菌。 还提供了热稳定性D-氨基酸氨基转移酶的制备方法。 制备的D-氨基酸氨基转移酶在高温下具有广泛的底物特异性和优异的活性,可用作D-氨基酸制备中的生物催化剂。 构成:源自嗜热杆菌芽孢杆菌的D-氨基酸氨基转移酶基因。 菌株具有由序列1a和1b表示的碱基序列。 通过培养通过包含D-氨基酸氨基转移酶的基因的表达载体pDSK 01转化的大肠杆菌转化体XL1-Blue / pDSK01来表达D-氨基酸转移酶来制备热模拟D-氨基酸氨基转移酶。

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