Fig. 7From: Optimization of expression, purification and secretion of functional recombinant human growth hormone in Escherichia coli using modified staphylococcal protein a signal peptideEvaluation of the recombinant hGH expression extracted from cytoplasm and supernatant. hGH expression band appears in the supernatant of the bacterial colonies related to the signal peptides 2 and 3. T0s stands for supernatant of culture medium at T0, T0p is bacterial pellet protein content at T0 and To/n stands for T overnight. STD is a commercially available hGH from Novo Nordisk company which was used as a positive controlBack to article page