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Gene Review:

psaC - photosystem I subunit VII

Synechocystis sp. PCC 6803

This record was discontinued.

Jung, Y.S. et al., Muramatsu, M. et al., Yu, J. et al., Ellersiek, U. et al.

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Disease relevance of psaC

A psaC deletion mutant of the unicellular cyanobacterium Synechocystis sp. PCC 6803 was utilized to incorporate site-specific amino acid substitutions in the cysteine residues that ligate the FA and FB iron-sulfur clusters in Photosystem I (PS I) [1].

High impact information on psaC

Subsequent analysis of psaC, psaE, psaK1, and psaLI promoters revealed that their light response was also achieved by AT-rich sequences located at the -70 to -46 region [2].
In photosystem I (PSI) of oxygenic photosynthetic organisms the psaC polypeptide, encoded by the psaC gene, provides the ligands for two [4Fe-4S] clusters, FA and FB [3].
The ndhD gene is associated with a gene encoding an iron-sulphur protein of photosystem I (psaC) as in plastid DNA [4].

References

Strains of Synechocystis sp. PCC 6803 with altered PsaC. II. EPR and optical spectroscopic properties of FA and FB in aspartate, serine, and alanine replacements of cysteines 14 and 51. Jung, Y.S., Vassiliev, I.R., Yu, J., McIntosh, L., Golbeck, J.H. J. Biol. Chem. (1997) [Pubmed]
Coordinated High-Light Response of Genes Encoding Subunits of Photosystem I Is Achieved by AT-Rich Upstream Sequences in the Cyanobacterium Synechocystis sp. Strain PCC 6803. Muramatsu, M., Hihara, Y. J. Bacteriol. (2007) [Pubmed]
Absence of PsaC subunit allows assembly of photosystem I core but prevents the binding of PsaD and PsaE in Synechocystis sp. PCC6803. Yu, J., Smart, L.B., Jung, Y.S., Golbeck, J., McIntosh, L. Plant Mol. Biol. (1995) [Pubmed]
Cloning and transcription analysis of the ndh(A-I-G-E) gene cluster and the ndhD gene of the cyanobacterium Synechocystis sp. PCC6803. Ellersiek, U., Steinmüller, K. Plant Mol. Biol. (1992) [Pubmed]

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