Understanding Flavin-Dependent Halogenase Reactivity via Substrate Activity Profiling
摘要:
The activity of four native FDHs and four engineered FDH variants on 93 low-molecular-weight arenes was used to generate FDH substrate activity profiles. These profiles provided insights into how substrate class, functional group substitution, electronic activation, and binding affect FDH activity and selectivity. The enzymes studied could halogenate a far greater range of substrates than have been previously recognized, but significant differences in their substrate specificity and selectivity were observed. Trends between the electronic activation of each site on a substrate and halogenation conversion at that site were established, and these data, combined with docking simulations, suggest that substrate binding can override electronic activation even on compounds differing appreciably from native substrates. These findings provide a useful framework for understanding and exploiting FDH reactivity for organic synthesis.
Synthesis of mono-substituted derivatives of 6-aminoquinoline
作者:Tian Lan、Xian Xia Yuan、Jiang Hong Yu、Chao Jia、Yu Shi Wang、Hui Juan Zhang、Zi Feng Ma、Wei Dong Ye
DOI:10.1016/j.cclet.2010.10.005
日期:2011.3
Abstract Several 6-aminoquinoline derivatives, which could be used in drug design, have been synthesized. The reaction conditions were comparatively studied, and the p -chloroaniline was used as optimum oxidant in Skraup–Doebner–Von Miller reaction. The nitro group was reduced effectively by SnCl 2 with no halo-removed occurred.
Howitz; Fraenkel; Schroeder, Justus Liebigs Annalen der Chemie, 1913, vol. 396, p. 63
作者:Howitz、Fraenkel、Schroeder
DOI:——
日期:——
Understanding Flavin-Dependent Halogenase Reactivity via Substrate Activity Profiling
作者:Mary C. Andorfer、Jonathan E. Grob、Christine E. Hajdin、Julia R. Chael、Piro Siuti、Jeremiah Lilly、Kian L. Tan、Jared C. Lewis
DOI:10.1021/acscatal.6b02707
日期:2017.3.3
The activity of four native FDHs and four engineered FDH variants on 93 low-molecular-weight arenes was used to generate FDH substrate activity profiles. These profiles provided insights into how substrate class, functional group substitution, electronic activation, and binding affect FDH activity and selectivity. The enzymes studied could halogenate a far greater range of substrates than have been previously recognized, but significant differences in their substrate specificity and selectivity were observed. Trends between the electronic activation of each site on a substrate and halogenation conversion at that site were established, and these data, combined with docking simulations, suggest that substrate binding can override electronic activation even on compounds differing appreciably from native substrates. These findings provide a useful framework for understanding and exploiting FDH reactivity for organic synthesis.