Expression of the E.coli hemolysin secretion gene hlyB involves transcript anti-termination within the hly operon.

@article{Koronakis1988ExpressionOT,
  title={Expression of the E.coli hemolysin secretion gene hlyB involves transcript anti-termination within the hly operon.},
  author={Vassilis Koronakis and M. A. Cross and Colin Hughes},
  journal={Nucleic acids research},
  year={1988},
  volume={16 11},
  pages={4789-800}
}
The genes hly A and hly B dictating synthesis and secretion of hemolytic toxin by Escherichia coli are transcribed as part of an operon hly C, hly A, hly B but are separated by an inverted repeat and poly-T sequence characteristic of a rho-independent terminator. The hly A-hly B intergenic sequence caused a reduction of in vivo transcriptional read-through from the gal promotor into gal K when inserted in the pKG1900 terminator-probe vector and also in vitro 3' to the bacteriophage T7 luminal… CONTINUE READING