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A novel mechanism for connecting bacterial two-component signal-transduction systems.

Authors
Type
Published Article
Journal
Trends in Biochemical Sciences
0968-0004
Publisher
Elsevier
Publication Date
Volume
30
Issue
2
Pages
70–72
Identifiers
PMID: 15691651
Source
Medline

Abstract

Bacteria have many two-component signal-transduction systems (TCSs) that respond to specific environmental signals by altering the phosphorylated state of a response regulator. Although these systems are presumed to form an intricate signal network, the detailed mechanism of how they interact with each other remains largely unexplained. In a recent study of Salmonella, two TCSs have been discovered to be connected by a protein that protects a response regulator from dephosphorylation promoted by its cognate sensor kinase. This novel mechanism might provide an answer to some of the linkages found between other TCSs.

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