Vibrio Cholerae Nsps, A Homologue Of ABC-Type Periplasmic Solute Binding Proteins, Facilitates Transduction Of Polyamine Signals Independent Of Their Transport
- ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
- Ece Karatan Ph.D., Associate Professor (Creator)
- Institution
- Appalachian State University (ASU )
- Web Site: https://library.appstate.edu/
Abstract: The polyamines norspermidine and spermidine are among the environmental signals that regulate Vibrio cholerae biofilm formation. The effects of these polyamines are mediated by NspS, a member of the bacterial periplasmic solute binding protein superfamily. Almost all members of this superfamily characterized to date are components of ATP-binding cassette-type transporters involved in nutrient uptake. Consequently, in the current annotation of the V. cholerae genome, NspS has been assigned a function in transport. The objective of this study was to further characterize NspS and investigate its potential role in transport. Our results support a role for NspS in signal transduction in response to norspermidine and spermidine, but not their transport. In addition, we provide evidence that these polyamine signals are processed by c-di-GMP signalling networks in the cell. Furthermore, we present comparative genomics analyses which reveal the presence of NspS-like proteins in a variety of bacteria, suggesting that periplasmic ligand binding proteins may be widely utilized for sensory transduction.
Vibrio Cholerae Nsps, A Homologue Of ABC-Type Periplasmic Solute Binding Proteins, Facilitates Transduction Of Polyamine Signals Independent Of Their Transport
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Additional Information
- Publication
- Ece Karatan, Steven R. Cockerell, Alex C. Rutkovsky, Josiah P. Zayner, Rebecca E. Cooper, Lindsay R. Porter, Sam S. Pendergraft, Zach M. Parker, and Marcus W. McGinnis (2014) "Vibrio Cholerae Nsps, A Homologue Of ABC-Type Periplasmic Solute Binding Proteins, Facilitates Transduction Of Polyamine Signals Independent Of Their Transport" Microbiology Society vol. 160 pp.832-843 [DOI 10.1099/mic.0.075903-0] Version of Record Available from www.microbiologyresearch.org
- Language: English
- Date: 2014
- Keywords
- Biofilm Formation, Escherichia-Coli, Agrobacterium-Tumefaciens, Virulence Determinants