Fig. 2From: Development an effective system to expression recombinant protein in E. coli via comparison and optimization of signal peptides: Expression of Pseudomonas fluorescens BJ-10 thermostable lipase as case studyRelative expression level of lipBJ10 in different recombinant strains (from BL21-00 to BL21-06). Data were normalized to the housekeeping gene E. coli 16s. Results are shown as relative expression ratios compared with expression in the non-fusion expression strain (the recombinant E. coli BL21-00). The results are means ± one standard deviation for three replicates and differences between different strains were statistically significant at a P value of 0.05Back to article page