سال انتشار: ۱۳۸۴
محل انتشار: چهارمین همایش ملی بیوتکنولوژی ایران
تعداد صفحات: ۴
Jafar Kiani – Dept of Medical Biotechnology, Tarbiat Modares University, Tehran.
Alireza Zomorodipour – National Institute of Genetic Engineering and Biotechnology, Tehran.
Mehdi Fourozandeh – Dept of Medical Biotechnology, Tarbiat Modares University, Tehran.
Mahvash Khodabandeh – National Institute of Genetic Engineering and Biotechnology, Tehran.
A gene encoding the mature form of the human growth hormone (hGH) was fused to the secretion signal coding sequence, pelB, this hybrid gene was expressed in E. coli under the transcriptional control of bacteriophage T7lac promoteoperator system. Studying the periplasmic protein pattern of the recombinant bacteria, showed that the recombinant bacteria allowed a partially succeeded secretion of hGH into the periplasmic space. Remaining of unprocessed pelB::hGH fusion-protein was also observed in the E. coli cytoplasmic space. Comparing to IPTG induction, we have also used lactose as natural inducer for over-expression of rhGH in the present system. Our results demonstrated that lactose is as effective as IPTG for inducing expression of recombinant hGH.