RT Journal Article SR Electronic(1) A1 Plumbridge, Jacqueline A.YR 1992 T1 A dominant mutation in the gene for the Nag repressor of Escherichia coli that renders the nag regulon uninducible JF Microbiology, VO 138 IS 5 SP 1011 OP 1017 DO https://doi.org/10.1099/00221287-138-5-1011 PB Microbiology Society, SN 1465-2080, AB 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., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-138-5-1011