中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Efficiency and Stability Enhancement of Cis-epoxysuccinic Acid Hydrolase by Fusion with a Carbohydrate Binding Module and Immobilization onto Cellulose

文献类型:期刊论文

作者Wang, Shan1,2; Cui, Gu-Zhen1,2; Song, Xiang-Fei1; Feng, Yingang1; Cui, Qiu1
刊名APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
出版日期2012-10-01
卷号168期号:3页码:708-717
关键词Cis-epoxysuccinic acid hydrolase Carbohydrate binding module Fusion enzyme Enzyme stability Affinity immobilization
中文摘要

Cis-epoxysuccinic acid hydrolase (CESH) is an enzyme that catalyzes cis-epoxysuccinic acid to produce enantiomeric L(+)-tartaric acid. The production of tartaric acid by using CESH would be valuable in the chemical industry because of its high yield and selectivity, but the low stability of CESH hampers its application. To improve the stability of CESH, we fused five different carbohydrate-binding modules (CBMs) to CESH and immobilized the chimeric enzymes on cellulose. The effects of the fusion and immobilization on the activity, kinetics, and stability of CESH were compared. Activity measurements demonstrated that the fusion with CBMs and the immobilization on cellulose increased the pH and temperature adaptability of CESH. The chimeric enzymes showed significantly different enzyme kinetics parameters, among which the immobilized CBM30-CESH exhibited twofold catalytic efficiency compared with the native CESH. The half-life measurements indicated that the stability of the enzyme in its free form was slightly increased by the fusion with CBMs, whereas the immobilization on cellulose significantly increased the stability of the enzyme. The immobilized CBM30-CESH showed the longest half-life, which is more than five times the free native CESH half-life at 30 °C. Therefore, most CBMs can improve enzymatic properties, and CBM30 is the best fusion partner for CESH to improve both its enzymatic efficiency and its stability.

英文摘要Cis-epoxysuccinic acid hydrolase (CESH) is an enzyme that catalyzes cis-epoxysuccinic acid to produce enantiomeric L(+)-tartaric acid. The production of tartaric acid by using CESH would be valuable in the chemical industry because of its high yield and selectivity, but the low stability of CESH hampers its application. To improve the stability of CESH, we fused five different carbohydrate-binding modules (CBMs) to CESH and immobilized the chimeric enzymes on cellulose. The effects of the fusion and immobilization on the activity, kinetics, and stability of CESH were compared. Activity measurements demonstrated that the fusion with CBMs and the immobilization on cellulose increased the pH and temperature adaptability of CESH. The chimeric enzymes showed significantly different enzyme kinetics parameters, among which the immobilized CBM30-CESH exhibited twofold catalytic efficiency compared with the native CESH. The half-life measurements indicated that the stability of the enzyme in its free form was slightly increased by the fusion with CBMs, whereas the immobilization on cellulose significantly increased the stability of the enzyme. The immobilized CBM30-CESH showed the longest half-life, which is more than five times the free native CESH half-life at 30 A degrees C. Therefore, most CBMs can improve enzymatic properties, and CBM30 is the best fusion partner for CESH to improve both its enzymatic efficiency and its stability.
WOS标题词Science & Technology ; Life Sciences & Biomedicine
学科主题代谢物组学
类目[WOS]Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
研究领域[WOS]Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
关键词[WOS]ESCHERICHIA-COLI ; CLOSTRIDIUM-CELLULOVORANS ; AFFINITY PURIFICATION ; DOMAIN ; PROTEINS ; EXPRESSION ; ENZYME ; ADSORPTION ; CBM ; THERMOCELLUM
收录类别SCI
语种英语
WOS记录号WOS:000309869100019
公开日期2012-11-11
源URL[http://ir.qibebt.ac.cn:8080/handle/337004/1222]  
专题青岛生物能源与过程研究所_代谢物组学团队
作者单位1.Chinese Acad Sci, Qingdao Inst BioEnergy & Bioproc Technol, Key Lab Biofuels, Shandong Prov Key Lab Energy Genet, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Wang, Shan,Cui, Gu-Zhen,Song, Xiang-Fei,et al. Efficiency and Stability Enhancement of Cis-epoxysuccinic Acid Hydrolase by Fusion with a Carbohydrate Binding Module and Immobilization onto Cellulose[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2012,168(3):708-717.
APA Wang, Shan,Cui, Gu-Zhen,Song, Xiang-Fei,Feng, Yingang,&Cui, Qiu.(2012).Efficiency and Stability Enhancement of Cis-epoxysuccinic Acid Hydrolase by Fusion with a Carbohydrate Binding Module and Immobilization onto Cellulose.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,168(3),708-717.
MLA Wang, Shan,et al."Efficiency and Stability Enhancement of Cis-epoxysuccinic Acid Hydrolase by Fusion with a Carbohydrate Binding Module and Immobilization onto Cellulose".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY 168.3(2012):708-717.

入库方式: OAI收割

来源:青岛生物能源与过程研究所

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