Possible ideal lac operator: Escherichia coli lac operator-like sequences from eukaryotic genomes lack the central G X C pair.

Por Simons, A, Tils, D, von Wilcken-Bergmann, B, Müller-Hill, B
Publicado em 1984

A synthetic operon containing 14 bovine pancreatic trypsin inhibitor genes is expressed in E. coli.

Por von Wilcken-Bergmann, B, Tils, D, Sartorius, J, Auerswald, E A, Schröder, W, Müller-Hill, B
Publicado em 1986