Computer-Aided Design of α-L-Rhamnosidase to Increase the Synthesis Efficiency of Icariside I.

ABSTRACT: Icariside I, the glycosylation product of icaritin, is a novel effective anti-cancer agent with immunological anti-tumor activity. However, very limited natural icariside I content hinders its direct extraction from plants. Therefore, we employed a computer-aided protein design strategy to improve the catalytic efficiency and substrate specificity of the α-L-rhamnosidase from Thermotoga petrophila DSM 13995, to provide a highly-efficient preparation method. Several beneficial mutants were obtained by expanding the active cavity. The catalytic efficiencies of all mutants were improved 16-200-fold compared with the wild-type TpeRha. The double-point mutant DH was the best mutant and showed the highest catalytic efficiency (k _cat /K _M :

SUBMITTER: Huang JJ 

PROVIDER: S-EPMC9253678 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature