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. 1989 Mar;86(6):1949–1953. doi: 10.1073/pnas.86.6.1949

A region of a cyanobacterial genome required for sulfate transport.

L S Green 1, D E Laudenbach 1, A R Grossman 1
PMCID: PMC286822  PMID: 2538823

Abstract

Using the cysA locus of Salmonella typhimurium as a heterologous probe, we have cloned a region of the Anacystis nidulans R2 (Synechococcus PCC 7942) genome involved in sulfate assimilation. The 8.3-kilobase-pair region encodes at least five transcripts that cannot be detected unless the cells are deprived of sulfur. One of the genes in this region has been sequenced, and the protein that it encodes is homologous to a polypeptide component of other permease systems of Escherichia coli and Salmonella. Insertional inactivation of the putative sulfate permease gene, designated cysA, as well as of other genes within this region, results in cysteine auxotrophy, reduced sulfate uptake, and altered expression of soluble and cytoplasmic-membrane polypeptides associated with sulfur starvation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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