Quantitative analysis of expression of two circadian clock-controlled gene clusters coding for the bidirectional hydrogenase in the cyanobacterium Synechococcus sp. PCC7942
Molecular Microbiology, ISSN: 0950-382X, Vol: 41, Issue: 6, Page: 1409-1417
2001
- 30Citations
- 23Captures
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Metrics Details
- Citations30
- Citation Indexes30
- 30
- CrossRef26
- Captures23
- Readers23
- 23
Article Description
Hydrogen metabolism is of central interest in cyanobacterial research because of its potential applications. The gene expression and physiological role of the cyanobacterial bidirectional NAD(P)- reducing hydrogenase are poorly understood. Transcription rates of hoxEF and hoxUYH encoding this enzyme have been studied in Synechococcus sp. PCC7942. P activity was about three times higher than that of P. Circadian phasing of both promoters was found to be synchronous and influenced expression levels by at least one order of magnitude. This is the first demonstration of circadian control of gene expression for any hydrogenase. For the majority of P-driven messages, transcription presumably terminates between hoxU and hoxH. Being part of a olycistronic hoxUYHW... operon, hoxW, encoding a protease involved in C-terminal processing of the hydrogenase large-subunit HoxH, is mainly expressed by its own promoter, P. The complex transcript formation may be a key feature for controlling bidirectional hydrogenase expression in vivo.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0034797586&origin=inward; http://dx.doi.org/10.1046/j.1365-2958.2001.02612.x; http://www.ncbi.nlm.nih.gov/pubmed/11580844; http://doi.wiley.com/10.1046/j.1365-2958.2001.02612.x; https://dx.doi.org/10.1046/j.1365-2958.2001.02612.x; https://onlinelibrary.wiley.com/doi/full/10.1046/j.1365-2958.2001.02612.x
Wiley
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