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UniProt functional annotation for O32080 | ||
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| UniProt code: O32080. |
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| Organism: | |
Bacillus subtilis (strain 168). |
| Taxonomy: | |
Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus. |
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| Function: | |
Catalytic subunit of the KtrAB potassium uptake transporter. The 2 major potassium transporter complexes KtrAB and KtrCD confer resistance to both suddenly imposed and prolonged osmotic stress. {ECO:0000269|PubMed:12562800}. |
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| Subunit: | |
Homodimer, tetramer (dimer of homodimer) and octamer (tetramer of homodimer). Part of the KtrAB complex formed by an octameric catalytic ring of KtrA and a membrane associated dimer of KtrB forming a potassium channel. {ECO:0000269|PubMed:12086676, ECO:0000269|PubMed:16990138}. |
| Subcellular location: | |
Cell membrane {ECO:0000250}; Peripheral membrane protein {ECO:0000250}; Cytoplasmic side {ECO:0000250}. |
| Disruption phenotype: | |
Impaired potassium uptake. {ECO:0000269|PubMed:12562800}. |
| Similarity: | |
Belongs to the KtrA potassium transport family. {ECO:0000305}. |
Annotations taken from UniProtKB at the EBI.