Improved Enantioselectivity of Subtilisin Carlsberg towards Secondary Alcohols by Protein Engineering
作者:Robin Dorau、Tamás Görbe、Maria Svedendahl Humble
DOI:10.1002/cbic.201700408
日期:2018.2.16
An acyl in the hole: The performance of the serine protease subtilisin Carlsberg (SC) is improved towards transacylation reactions by using secondary alcohols in THF. By enzyme immobilization, the enantioselectivity of SC is increased tenfold. By further protein engineering, an enzyme variant (G165L/M221F) shows increased conversion, enantioselectivity (E>100), substrate scope, and stability in THF
孔中的酰基:通过在THF中使用仲醇,丝氨酸蛋白酶枯草杆菌蛋白酶Carlsberg(SC)的性能可提高转酰基反应的效率。通过酶固定,SC的对映选择性增加了十倍。通过进一步的蛋白质工程,酶变体(G165L / M221F)显示出增加的转化率,对映选择性(E > 100),底物范围和在THF中的稳定性。