A mutation defining ultrainduction of the Escherichia coli gal operon.
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.
Golding
A
A
Laboratory of Molecular Biology, National Cancer Institute, Bethesda, Maryland 20892.
Weickert
M J
MJ
Tokeson
J P
JP
Garges
S
S
Adhya
S
S
D004251:DNA Transposable Elements; D004926:Escherichia coli / Q000235:genetics*; D005690:Galactose / Q000235:genetics*; D015964:Gene Expression Regulation, Bacterial; D009154:Mutation; D009876:Operon; D012097:Repressor Proteins / Q000235:genetics
D004251:DNA Transposable Elements; D012097:Repressor Proteins; D005690:Galactose