Journal
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
Volume 82, Issue 5, Pages 741-751Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09168451.2018.1444466
Keywords
B; subtilis; Essential TCS; WalK; WalR; Gram-positive bacteria
Categories
Funding
- Japanese Society for the Promotion of Science [23380052, 16H04903, 16K14892, 15K18676]
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The WalK/WalR two-component system (TCS), originally identified in Bacillus subtilis, is very highly conserved in gram-positive bacteria, including several important pathogens. The WalK/WalR TCS appears to be involved in the growth of most bacterial species encoding it. Previous studies have indicated conserved functions of this system, defining this signal transduction pathway as a crucial regulatory system for cell wall metabolism. Because of such effects on essential functions, this system is considered a potential target for anti-infective therapeutics. In this review, we discuss the role of WalK/WalR TCS in different bacterial cells, focusing on the function of the genes in its regulon as well as the variations in walRK operon structure, its auxiliary proteins, and the composition of its regulon. We also discuss recent experimental data addressing its essential function and the potential type of signal being sensed by B. subtilis. This review also focuses on the potential future research.
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