Part:BBa_K568003

T7 promoter lacZ reporter part

beta-galactosidase expression upon T7 polymerase binding

Usage and Biology

This part can be used as a reporter plasmid. It expresses beta-galactosidase if there is a T7 polymerase (or a mutant variant) nearby or transcribed through another part. The polymerase binds to the T7 promoter and transcription of the lacZ-Gene can occur, leading to beta-galactosidase expression.

Experimental Testing

The part was tested by the 2011 team of the TU_Munich on the 25th of September 2011. For this purpose, a Miller Assay was conducted. The results can be seen below.

Results of the Miller Assay of BBa_K568003. The part was transcribed by genome-coded T7 polymerase, which was induced by addition of varying concentrations of IPTG. The control strain was not able to produce T7 polymerase.