Extremophiles, 2018, 22(1):141-150

Fusion with the cold-active esterase facilitates autotransporter-based surface display of the 10th human fibronectin domain in Escherichia coli

Cell surface display is a popular approach for the construction of whole-cell biocatalysts, live vaccines, and screening of combinatorial libraries. To develop a novel surface display system for the popular scaffold protein 10th human fibronectin type III domain (10Fn3) in Escherichia coli cells, we have used an α-helical linker and a C-terminal translocator domain from previously characterized autotransporter from Psychrobacter cryohalolentis K5T. The level of10Fn3 passenger exposure at the cell surface provided by the hybrid autotransporter Fn877 and its C-terminal variants was low. To improve it, the fusion proteins containing10Fn3 and the native autotransporter passenger Est877 or the cold-active esterase EstPc in different orientations were constructed and expressed as passenger domains. Using the whole-cell ELISA and activity assays, we have demonstrated that N-terminal position of EstPc in the passenger significantly improves the efficiency of the surface display of10Fn3 in E. coli cells.

Petrovskaya LE, Zlobinov AV, Shingarova LN, Boldyreva EF, Gapizov SS, Novototskaya-Vlasova KA, Rivkina EM, Dolgikh DA, Kirpichnikov MP

IBCH: 3257
Ссылка на статью в журнале: http://link.springer.com/10.1007/s00792-017-0990-7
Кол-во цитирований на 03.2025: 7
Данные статьи проверены модераторами 2018-01-22