BACTERIAL PHYSIOLOGY

DABs accumulate bicarbonate

A newly discovered energy-linked carbonic anhydrase, DabBA2, is a two-protein complex responsible for inorganic carbon accumulation in the sulfur bacterium Halothiobacillus neapolitanus. DABs are present in a wide range of proteobacterial clades, suggesting that they function in diverse metabolic pathways.

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Fig. 1: Comparison of energized CA-based CO2 pumps.

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Correspondence to G. Dean Price.

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Price, G.D., Long, B.M. & Förster, B. DABs accumulate bicarbonate. Nat Microbiol 4, 2029–2030 (2019). https://doi.org/10.1038/s41564-019-0629-9

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