The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
pkn22 (alr2502) encoding a putative Ser/Thr kinase in the cyanobacterium Anabaena sp. PCC 7120 is induced by both iron starvation and oxidative stress and regulates the expression of isiA
Open accessAbstract
In cyanobacteria, the isiA gene is required for cell adaptation to oxidative damage caused by the absence of iron. We show here that a putative Ser/Thr kinase gene, pkn22 (alr2052), is activated by iron deficiency and oxidative damage in Anabaena sp. PCC 7120. A pkn22 insertion mutant is unable to grow when iron is limiting. pkn22 regulates the expression of isiA (encoding CP43′), but not of isiB (encoding flavodoxin) and psbC (CP43). Fluorescence measurement at 77 K reveals the absence of the typical signature of CP43′ associated with photosystem I in the mutant under iron‐limiting conditions. We propose that Pkn22 is required for the function of isiA/CP43′ and constitutes a regulatory element necessary for stress response.
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Horsburgh, M. J., Clements, M. O., Crossley, H., Ingham, E., & Foster, S. J. (2001) · Infection and Immunity · doi:10.1128/iai.69.6.3744-3754.2001 · Cited by 365
A giant chlorophyll–protein complex induced by iron deficiency in cyanobacteria
Boekema, E. J., Hifney, A., Yakushevska, A. E., Piotrowski, M., Keegstra, W., Berry, S., Michel, K.-P., Pistorius, E. K., & Kruip, J. (2001) · Nature · doi:10.1038/35089104 · Cited by 355
Global analysis of the Bacillus subtilis Fur regulon and the iron starvation stimulon
Baichoo, N., Wang, T., Ye, R., & Helmann, J. D. (2002) · Molecular Microbiology · doi:10.1046/j.1365-2958.2002.03113.x · Cited by 250
Mechanisms of iron regulation in mycobacteria: role in physiology and virulence
Rodriguez, G. M., & Smith, I. (2003) · Molecular Microbiology · doi:10.1046/j.1365-2958.2003.03384.x · Cited by 162
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Metadata
- Authors
- Xu, W.-L., Jeanjean, R., Liu, Y.-D., & Zhang, C.-C.
- Venue
- FEBS Letters
- Publisher
- Wiley
- Published
- 2003-09-17
- Volume
- 553
- Issue
- 1-2
- Pages
- 179-182
- ISSN
- 0014-5793 (ISSN-L)
- 1873-3468
- OpenAlex
- W2027536884
- Cited by
- 230
- References
- 4
- FWCI
- 10.08
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: pkn22 (alr2502) encoding a putative Ser/Thr kinase in the cyanobacterium Anabaena sp. PCC 7120 is induced by both iron starvation and oxidative stress and regulates the expression of isiA. https://app.cochat.ai/papers/10.1016/s0014-5793(03)01019-6
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- Xu, W.-L., Jeanjean, R., Liu, Y.-D., & Zhang, C.-C. (2003). pkn22 (alr2502) encoding a putative Ser/Thr kinase in the cyanobacterium Anabaena sp. PCC 7120 is induced by both iron starvation and oxidative stress and regulates the expression of isiA. FEBS Letters. https://doi.org/10.1016/s0014-5793(03)01019-6
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