Potassium binding protein Kbp

UniProtKB accession:  P0ADE6

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UniProtKB description:  Highly specific potassium binding protein that is required for normal growth in the presence of high levels of external K(+). May act as a sensor of cytoplasmic K(+) concentration. Binds a single K(+) ion, which induces a large conformational change. Can also bind the larger alkali metal ions Rb(+) and Cs(+), and NH(4)(+) (PubMed:27112601). May be involved in the regulation of peptidoglycan cross-linking (PubMed:25422305).