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Journal of Bacteriology, October 2001, p. 5778-5781, Vol. 183, No. 19
0021-9193/01/$04.00+0   DOI: 10.1128/JB.183.19.5778-5781.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Regulation of Potassium-Dependent Kdp-ATPase Expression in the Nitrogen-Fixing Cyanobacterium Anabaena torulosa

Anuradha Alahari,dagger Anand Ballal, and Shree Kumar Apte*

Cell Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India

Received 24 October 2000/Accepted 19 June 2001

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.

* Corresponding author. Mailing address: BSAR Section, Cell Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India. Phone: 091 22 550 5000, ext. 2348. Fax: 091 22 550 5151 or 551 9613. E-mail: aptesk{at}apsara.barc.ernet.in or bsar{at}apsara.barc.ernet.in.

dagger Present address: Laboratoire de Biologie Végétale et Microbiologie, Université de Nice---Sophia Antipolis, CNRS FRE 2294, Nice, France.

Journal of Bacteriology, October 2001, p. 5778-5781, Vol. 183, No. 19
0021-9193/01/$04.00+0   DOI: 10.1128/JB.183.19.5778-5781.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:

  • Ballal, A., Apte, S. K. (2005). Differential Expression of the Two kdp Operons in the Nitrogen-Fixing Cyanobacterium Anabaena sp. Strain L-31. Appl. Environ. Microbiol. 71: 5297-5303 [Abstract] [Full Text]  
  • Ballal, A., Bramkamp, M., Rajaram, H., Zimmann, P., Apte, S. K., Altendorf, K. (2005). An Atypical KdpD Homologue from the Cyanobacterium Anabaena sp. Strain L-31: Cloning, In Vivo Expression, and Interaction with Escherichia coli KdpD-CTD. J. Bacteriol. 187: 4921-4927 [Abstract] [Full Text]  


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