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. 1988 May;170(5):2379–2382. doi: 10.1128/jb.170.5.2379-2382.1988

Transcriptional regulation of the proC gene of Salmonella typhimurium.

R A Brady 1, L N Csonka 1
PMCID: PMC211133  PMID: 3129409

Abstract

We found that the expression of beta-galactosidase in Salmonella typhimurium strains carrying proC-lacZ fusions was neither repressed by excess proline nor derepressed by proline limitation. Except for a three- to fourfold decrease in the beta-galactosidase specific activity under conditions causing a severely reduced growth rate, the expression of the proC-lacZ fusions was nearly invariant under a variety of culture conditions. Thus, the proC gene is unlike most other amino acid biosynthetic genes in that its expression is nearly constitutive.

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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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