Rigid-Rod β-Barrel Ion Channels with Internal “Cascade Blue” Cofactors − Catalysis of Amide, Carbonate, and Ester Hydrolysis
作者:Abhigyan Som、Stefan Matile
DOI:10.1002/1099-0690(200211)2002:22<3874::aid-ejoc3874>3.0.co;2-6
日期:2002.11
6-trisulfonate scaffold is introduced as an internal cofactor for histidine-rich p-octiphenyl s-barrels with catalytic and ion channel activity to mediate binding and conversion of otherwise inaccessible benzaldehyde substrates. Up to 170,000-fold accelerations of amide, ester, and carbonate hydrolysis, high substrate diversity, high chemoselectivity, and absence of enantioselectivity are reported.
芘-1,3,6-三磺酸盐支架被引入作为富含组氨酸的 p-octiphenyl s-barrels 的内部辅助因子,具有催化和离子通道活性,以介导其他难以接近的苯甲醛底物的结合和转化。据报道,酰胺、酯和碳酸酯水解的速度高达 170,000 倍,底物多样性高,化学选择性高,并且没有对映选择性。