Regulation of potassium-dependent Kdp-ATPase expression in the nitrogen-fixing cyanobacterium Anabaena torulosa.
The KdpB polypeptides in the cyanobacterium Anabaena torulosa were shown to be two membrane-bound proteins of about 78 kDa, expressed strictly under K(+) deficiency and repressed or degraded upon readdition of K(+). In both Anabaena and Escherichia coli strain MC4100, osmotic and ionic stresses caused no significant induction of steady-state KdpB levels during extreme potassium starvation.
Alahari
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Cell Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
Ballal
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Apte
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D000251:Adenosine Triphosphatases / Q000235:genetics / Q000378:metabolism*; D017033:Anabaena / Q000201:enzymology* / Q000235:genetics / Q000254:growth & development; D002352:Carrier Proteins / Q000235:genetics / Q000378:metabolism*; D027682:Cation Transport Proteins; D003470:Culture Media; D029968:Escherichia coli Proteins; D015964:Gene Expression Regulation, Bacterial; D009584:Nitrogen / Q000378:metabolism; D009586:Nitrogen Fixation; D011188:Potassium / Q000494:pharmacology*
D002352:Carrier Proteins; D027682:Cation Transport Proteins; D003470:Culture Media; D029968:Escherichia coli Proteins; D000251:Adenosine Triphosphatases; C058166:potassium translocating Kdp-ATPase, E coli; D009584:Nitrogen; D011188:Potassium