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Identification of a second psaC gene in the cyanobacterium Synechocystis sp. PCC6803

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Abstract

The psaC gene encodes the 9 kDa protein subunit of photosystem I that carries the iron-sulfur centers FA and FB. The paper describes the sequence and transcription analysis of a second psaC gene (psaC2) from Synechocystis sp. PCC6803. The psaC2 gene is transcribed into an abundant monocistronic mRNA. The deduced amino acid sequence of PSI-C2 is very similar to the protein sequences from two other cyanobacteria (Synechococcus sp. PCC7002 and Nostoc sp. PCC8009). In contrast, the recently isolated psaC1 gene is not transcribed and the PSI-C1 amino acid sequence shows the highest similarity to the proteins from higher plants.

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  1. Institut für Entwicklungs- und Molekularbiologie der Pflanzen, Heinrich-Heine-Universität, Universitätsstrasse 1, 4000, Düsseldorf 1, Germany

    Klaus Steinmüller

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  1. Klaus Steinmüller
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Steinmüller, K. Identification of a second psaC gene in the cyanobacterium Synechocystis sp. PCC6803. Plant Mol Biol 20, 997–1001 (1992). https://doi.org/10.1007/BF00027170

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  • DOI: https://doi.org/10.1007/BF00027170

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