Regulation of the Escherichia coli glyA gene by the purR gene product.

Abstract excerpt

The purine regulon repressor protein, PurR, was shown to be a purine component involved in glyA regulation in Escherichia coli. Expression of glyA, encoding serine hydroxymethyltransferase activity, was elevated in a purR mutant compared with a wild-type strain. When the purR mutant was transformed with a plasmid carrying the purR gene, the serine hydroxymethyltransferase levels returned to the wild-type level....

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