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  • Title: Another gene affecting sexual expression of Escherichia coli.
    Author: Lerner TJ, Zinder ND.
    Journal: J Bacteriol; 1982 Apr; 150(1):156-60. PubMed ID: 6120928.
    Abstract:
    We have examined the relationship between two chromosomal mutations of Escherichia coli K-12, fexA (0 min) and fexB (85 min), in regulating expression of the F sex factor. Together, fexA and fexB exert a pleiotropic effect on the expression of the F tra genes. F pilus synthesis, conjugal donor activity, and surface exclusion activity are all inhibited in the fexA fexB mutant. Either fex mutation alone is cryptic.
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