MpsAB is important for Staphylococcus aureus virulence and growth at 
atmospheric CO2 levels

Fan, Sook-Ha; Ebner, Patrick; Reichert, Sebastian; Hertlein, Tobias; Zabel, Susanne; Lankapalli, Aditya Kumar; Nieselt, Kay; Ohlsen, Knut; Götz, Friedrich

doi:10.1038/s41467-019-11547-5

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MpsAB is important for Staphylococcus aureus virulence and growth at atmospheric CO2 levels

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Lankapalli, Aditya Kumar
Archaeogenetics, Max Planck Institute for the Science of Human History, Max Planck Society;

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Fan, S.-H., Ebner, P., Reichert, S., Hertlein, T., Zabel, S., Lankapalli, A. K., et al. (2019). MpsAB is important for Staphylococcus aureus virulence and growth at atmospheric CO2 levels. Nature Communications, 10(1): 3647. doi:10.1038/s41467-019-11547-5.

Cite as: https://hdl.handle.net/21.11116/0000-0007-2F67-2

Abstract

The mechanisms behind carbon dioxide (CO2) dependency in non-autotrophic bacterial isolates are unclear. Here we show that the Staphylococcus aureus mpsAB operon, known to play a role in membrane potential generation, is crucial for growth at atmospheric CO2 levels. The genes mpsAB can complement an Escherichia coli carbonic anhydrase (CA) mutant, and CA from E. coli can complement the S. aureus delta-mpsABC mutant. In comparison with the wild type, S. aureus mps mutants produce less hemolytic toxin and are less virulent in animal models of infection. Homologs of mpsA and mpsB are widespread among bacteria and are often found adjacent to each other on the genome. We propose that MpsAB represents a dissolved inorganic carbon transporter, or bicarbonate concentrating system, possibly acting as a sodium bicarbonate cotransporter. © 2019, The Author(s).