Deletion of the yiaMNO transporter genes affects the growth characteristics of Escherichia coli K-12

Author:

Plantinga Titia H.1,van der Does Chris1,Tomkiewicz Danuta1,van Keulen Geertje2,Konings Wil N.1,Driessen Arnold J. M.1

Affiliation:

1. Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, PO Box 14, 9750, AA Haren, The Netherlands

2. Department of Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, PO Box 14, 9750, AA Haren, The Netherlands

Abstract

Binding-protein-dependent secondary transporters make up a unique transport protein family. They use a solute-binding protein in proton-motive-force-driven transport. Only a few systems have been functionally analysed. TheyiaMNOgenes ofEscherichia coliK-12 encode one family member that transports the rare pentosel-xylulose. Its physiological role is unknown, since wild-typeE. coliK-12 does not utilizel-xylulose as sole carbon source. Deletion of theyiaMNOgenes inE. coliK-12 strain MC4100 resulted in remarkable changes in the transition from exponential growth to the stationary phase, high-salt survival and biofilm formation.

Publisher

Microbiology Society

Subject

Microbiology

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