Article
A mutation defining ultrainduction of the Escherichia coli gal operon.
Journal of bacteriology - 1 Oct 1991
Golding A, Weickert M J, Tokeson J P, Garges S, Adhya S
Abstract excerpt
Tn10 insertion in the galS (ultrainduction factor) gene of Escherichia coli allows the gal operon to be constitutively expressed at a very high level, equal to that seen in a delta galR strain in the presence of an inducer. The insertion has been mapped by criss-cross Hfr matings and by marker rescue into Kohara phages at 46 min on the E. coli chromosome.
Topics
- DNA Transposable Elements
- Escherichia coli
- Galactose
- Gene Expression Regulation, Bacterial
- Mutation
- Operon
- Repressor Proteins