Nucleotide sequence of a region duplicated in Escherichia coli toc mutants - Yang, T.-P.; Depew, R.E. (Elsevier)
We have sequenced about 5 kb of the Escherichia coli chromosome downstream from the tolC gene, looking for a topoisomerase gene. This region does not contain a topoisomerase gene.
http://dx.doi.org/10.1016/0167-4781(92)90535-8
Keywords: W; V; WW-YZ; U