Inducible expression systems are essential molecular tools for production of recombinant proteins in cells, for synthesis and degradation of small molecules catalyzed by the enzymes expressed from the expression system, and for testing the function of unknown genes or proteins in cells.

What is inducible operon system?

An inducible operon is one whose expression increases quantitatively in response to an enhancer, an inducer, or a positive regulator.

What is a repressible and inducible system?

Genes in an operon are transcribed as a group and have a single promoter. … Some operons are inducible, meaning that they can be turned on by the presence of a particular small molecule. Others are repressible, meaning that they are on by default but can be turned off by a small molecule.