Article
The wild-type allele of tonB in Escherichia coli is dominant over the tonB1 allele, encoding TonBQ160K, which suppresses the btuB451 mutation.
Molecular & general genetics : MGG - 1 Jun 1993
Anton M, Heller K J
Abstract excerpt
The entire coding sequence of the tonB gene, except for nine codons at the 3' end, was deleted from the chromosome of Escherichia coli. Introduction of the btuB451 suppressor mutant tonB1 into the chromosome of such a tonB deletion strain showed that the tonB1 allele was active as a suppressor in a single copy at 37 degrees C and 42 degrees C but not at 28 degrees C. No temperature dependence was seen when FepA-...
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