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J Bacteriol. Jul 1989; 171(7): 4071–4072.
PMCID: PMC210164

Methionine aminopeptidase gene of Escherichia coli is essential for cell growth.


We localized the methionine aminopeptidase (map) gene on the Escherichia coli chromosome next to the rpsB gene at min 4. Genetically modified strains with the chromosomal map gene under lac promoter control grew only in the presence of the lac operon inducer isopropyl-beta-thiogalactoside. Thus, methionine aminopeptidase is essential for cell growth.

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Selected References

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