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Gene Review:

psbA - photosystem II protein D1

Cyanophora paradoxa

Valentin, K. et al., Bryant, D.A. et al., Maid, U. et al., Morton, B.R., Janssen, I. et al.

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Disease relevance of psbA

Sequences upstream from AP alpha closely resemble the Escherichia coli consensus promoter sequences and also show considerable homology to promoter sequences for several chloroplast-encoded psbA genes [1].
Evolutionary relationship of psbA genes from cyanobacteria, cyanelles and plastids [2].

High impact information on psbA

In the plant chloroplast genome the codon usage of the highly expressed psbA gene is unique and is adapted to the tRNA population, probably due to selection for translation efficiency [3].
We have sequenced a plastid gene cluster from the unicellular red alga Cyanidium caldarium which is located downstream from the psbA gene and contains, in the following order, genes for a beta-allophycocyanin-like protein (apcB'), a putative 9.5 kDa allophycocyanin linker protein (apcL9.5) and a putative 29 kDa phycocyanin linker protein (cpcL29) [4].
A 5.8 kb Eco RI, fragment containing the entire psbA-gene was cloned and the nucleotide sequence of the psbA-gene determined [5].
The ribosomal RNA operon was located 4 kb upstream of the psbA-gene [5].

References

Molecular cloning and nucleotide sequence of the alpha and beta subunits of allophycocyanin from the cyanelle genome of Cyanophora paradoxa. Bryant, D.A., de Lorimier, R., Lambert, D.H., Dubbs, J.M., Stirewalt, V.L., Stevens, S.E., Porter, R.D., Tam, J., Jay, E. Proc. Natl. Acad. Sci. U.S.A. (1985) [Pubmed]
Evolutionary relationship of psbA genes from cyanobacteria, cyanelles and plastids. Janssen, I., Jakowitsch, J., Michalowski, C.B., Bohnert, H.J., Löffelhardt, W. Curr. Genet. (1989) [Pubmed]
Selection on the codon bias of chloroplast and cyanelle genes in different plant and algal lineages. Morton, B.R. J. Mol. Evol. (1998) [Pubmed]
Organization and expression of a phycobiliprotein gene cluster from the unicellular red alga Cyanidium caldarium. Valentin, K., Maid, U., Emich, A., Zetsche, K. Plant Mol. Biol. (1992) [Pubmed]
The psbA-gene from a red alga resembles those from cyanobacteria and cyanelles. Maid, U., Valentin, K., Zetsche, K. Curr. Genet. (1990) [Pubmed]

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