A Defined and Flexible Pocket Explains Aryl Substrate Promiscuity of the Cahuitamycin Starter Unit-Activating Enzyme CahJ

作者:Tripathi Ashootosh; Park Sung Ryeol; Sikkema Andrew P; Cho Hyo Je; Wu Jianfeng; Lee Brian; Xi Chuanwu; Smith Janet L; Sherman David H*
来源:ChemBioChem, 2018, 19(15): 1595-1600.
DOI:10.1002/cbic.201800233

摘要

Cahuitamycins are biofilm inhibitors assembled by a convergent nonribosomal peptide synthetase pathway. Previous genetic analysis indicated that a discrete enzyme, CahJ, serves as a gatekeeper for cahuitamycin structural diversification. Here, the CahJ protein was probed structurally and functionally to guide the formation of new analogues by mutasynthetic studies. This analysis enabled the in vivo production of a new cahuitamycin congener through targeted precursor incorporation.

  • 出版日期2018-8-6