TLS Online TPP Program

#Question id: 20941


IPTG is used as an inducer in the T7 expression system for recombinant protein expression in E.coli. This is because of:

#Unit 13. Advances in Biotechnology
  1. availability of special E.coli cells which have the T7 RNA polymerase gene integrated into their genome under a regulatable promoter
  2. T7 promoter is recognized by E.coli RNA polymerase
  3. High copy number of plasmid allows sequestration of E.coli RNA polymerase by T7 promoter
  4. IPTG facilitates binding of E.coli RNA polymerase to the T7 promoter.