@article{mbs:/content/journal/micro/10.1099/00221287-138-5-1011, author = "Plumbridge, Jacqueline A.", title = "A dominant mutation in the gene for the Nag repressor of Escherichia coli that renders the nag regulon uninducible", journal= "Microbiology", year = "1992", volume = "138", number = "5", pages = "1011-1017", doi = "https://doi.org/10.1099/00221287-138-5-1011", url = "https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-138-5-1011", publisher = "Microbiology Society", issn = "1465-2080", type = "Journal Article", abstract = "SUMMARY: The gene nagC encodes the repressor for the nag regulon. A point mutation within the gene, which confers a superrepressor phenotype and makes the repressor insensitive to the inducer, N-acetylglucosamine 6-phosphate, has been characterized. The mutation is semi-dominant since heterozygous diploids have reduced growth rates on glucosamine and N-acetylglucosamine compared to the wild-type strain.", }