A proteome-wide screen to identify transcription factors interacting with the Vibrio cholerae rpoS promoter.

J Microbiol Methods

Morehouse School of Medicine, Department of Microbiology, Biochemistry and Immunology, 720 Westview Dr., SW, Atlanta, GA 30310, USA. Electronic address:

Published: October 2019

AI Article Synopsis

  • The study presents a proteomic method to identify transcription factors that bind to specific promoters.
  • The approach was validated by examining proteins that interact with the rpoS promoter of Vibrio cholerae based on cell density.
  • Key proteins found in the analysis included Fis, a nucleoid-associated protein, and HapR, which regulates quorum sensing.

Article Abstract

We describe a proteomic approach to identify transcription factors binding to a target promoter. The method's usefulness was tested by identifying proteins binding to the Vibrio cholerae rpoS promoter in response to cell density. Proteins identified in this screen included the nucleoid-associated protein Fis and the quorum sensing regulator HapR.

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http://dx.doi.org/10.1016/j.mimet.2019.105702DOI Listing

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