Gene Review:
psbA2 - photosystem II D1 protein form II
Synechococcus sp. WH 8102
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Disease relevance of psbA2
- A clear pattern of light-dependent expression was observed in recombinant cyanobacteria carrying the K-81 psbA2 -38/+36 region (which includes the minimal promoter element and a light-dependent cis-element with the AU-box), +1 indicating the transcription start site [1].
- The psbA2 gene of a unicellular cyanobacterium, Microcystis aeruginosa K-81, encodes a D1 protein homolog in the reaction center of photosynthetic Photosystem II [1].
- To clarify the role of 5'-upstream cis-elements containing the AU-box for light-dependent expression of psbA2, a series of deletion and point mutations in the region were introduced into the genome of heterologous cyanobacterium Synechococcus sp. strain PCC 7942, and psbA2 expression was examined [1].
References
- An AU-box motif upstream of the SD sequence of light-dependent psbA transcripts confers mRNA instability in darkness in cyanobacteria. Agrawal, G.K., Kato, H., Asayama, M., Shirai, M. Nucleic Acids Res. (2001) [Pubmed]
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