Growth phase and metal-dependent regulation of the dpsA gene in Synechococcus sp. strain PCC 7942

  title={Growth phase and metal-dependent regulation of the dpsA gene in Synechococcus sp. strain PCC 7942},
  author={Aparna Sen and Kshitij Dwivedi and Kathryn A. Rice and George S. Bullerjahn},
  journal={Archives of Microbiology},
The Synechococcus sp. strain PCC 7942 dpsA gene encodes a stress-inducible DNA-binding protein whose transcription increases in the stationary phase. Such transcription is likely under the control of an alternative sigma factor. Our current work indicated that dpsA transcription is also important under metal-ion limitation, because dpsA mRNA levels increased 12-fold under low-iron conditions, and that dpsA function is essential for growth under iron-limiting conditions. Promoter activity of the… CONTINUE READING


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