The completely sequenced genome of the cyano-bacterium Synechocystis PCC 6803 contains several open reading frames, of which the deduced amino acid sequences show similarities to proteins known to be involved in FeS cluster synthesis of nitrogenase (Nif proteins) and other FeS proteins (Isc proteins). In this article, the results of our studies on these proteins are summarized and discussed with respect to their relevance in FeS cluster incorporation in chloroplasts. In cyanobacteria, there appears to exist several pathways for FeS cluster synthesis.

Keywords:
cysteine desulphurase, FeS cluster, nitrogenase, nitrogen synthesis, open reading frame, Synechocystis, ORF, open reading frame, Cm, chloramphenicol
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© 2001 Biochemical Society
2001
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