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. 1972 Mar;109(3):993–1000. doi: 10.1128/jb.109.3.993-1000.1972

The pi-Histidine Factor of Salmonella typhimurium: a Demonstration that pi-Histidine Factor Integrates into the Chromosome

Mark Levinthal a, Jen Yeh a,1
PMCID: PMC247319  PMID: 4551760

Abstract

The Salmonella typhimurium pi-histidine episome was identified by Ames et al. (2) in an unstable partial revertant of a deletion mutation-containing strain, hisG203. HisG203 lacks the histidine operator, promoter, and part of the first structural gene. In this paper, we study some properties of pi factor and demonstrate a low frequency of pi integration into the chromosome at or near the histidine region.

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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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