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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].


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