Two enzymes together capable of cysteine biosynthesis are encoded on a cyanobacterial plasmid

Abstract

The cyanobacterium Synechococcus sp. PCC 7942 contains two endogenous, genetically cryptic plasmids pANS and pANL, respectively. Characterization of the 3.8 kb Ba6 BamHI fragment of pANL identified three open reading frames which were transcriptionally regulated by sulfur availability and the protein CysR. One of these genes, designated srpG, encodes a… (More)
DOI: 10.1007/BF00290354

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