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winged helix-turn-helix domain-containing protein
response regulator
This domain receives the signal from the sensor partner in bacterial two-component systems. It is usually found N-terminal to a DNA binding effector domain. [1]. 7699720. Response regulators of bacterial signal transduction systems: selective domain shuffling during evolution. Pao GM, Saier MH;. J Mol Evol 1995;40:136-154. (from Pfam)
quorum sensing response regulator transcription factor QseB
QseB (Quorum-Sensing E. coli regulator B), a DNA-binding response regulator, works with the histidine kinase QseC to coordinate responses to autoinducer-3, a signaling molecule used for quorum-signaling by multiple species of Enterobacteriaceae and Pasteurellaceae. At least some of the regulatory process actually involved dephosphorylation of QseB by QseC, apparently reversing phosphorylations that result from cross-talk with other two component systems, rather than QseC itself.
response regulator transcription factor QseB
two-component system response regulator transcription factor QseB binds DNA upon phosphorylation and functions as transcriptional regulator in the QseB-QseC system, which is part of the quorum-sensing regulatory cascade
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