Expression and Characterization of a GH38 α-Mannosidase from the Hyperthermophile Pseudothermotoga thermarum

Autor: Xing Yan, Xinling Nie, Qingfei Li, Feng Gao, Pei Liu, Zhongbiao Tan, Hao Shi
Rok vydání: 2022
Předmět:
Zdroj: Applied biochemistry and biotechnology.
ISSN: 1559-0291
Popis: This study focused on the bio-characterization of a GH38 α-mannosidase from the hyperthermophile Pseudothermotoga thermarum DSM 5069. We aimed to successfully express and characterize this thermophilic α-mannosidase and to assess its functional properties. Subsequently, recombinant α-mannosidase PtαMan was expressed in Escherichia coli BL21(DE3) and purified via affinity chromatography, and native protein was verified as a tetramer by size exclusion chromatography. In addition, the activity of α-mannosidase PtαMan was relatively stable at pH 5.0-6.5 and temperatures up to 75 ℃. α-Mannosidase PtαMan was active toward Co
Databáze: OpenAIRE