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. 2007 Oct 18;7:68. doi: 10.1186/1472-6750-7-68

Figure 1.

Figure 1

Structure and evaluation of plasmid vectors expressing the secreted forms of gE2. a) Diagram (not to scale) showing the pCMV-IgKE2-14 vector along with the sequence, and predicted amino-acid product, containing: the CMV enhancer promoter (CMV, in black box), the IgK signal peptide (red box) in frame with the E2 ORF and 14 hydrophilic extra amino acids peptide (14aa, green box) and the bovine growth hormone polyadenylation signal (PA, white box). b) Diagram (not to scale) showing the pCMV-IgKE2-23 vector along with the sequence and the predicted amino-acid product, containing: the CMV enhancer promoter (black box), the IgK signal peptide (red box) in frame with the E2 ORF and 23 hydrophobic extra amino acids peptide (23aa, green box) and the bovine growth hormone polyadenylation signal (PA, white box). c) Hydrophilicity plot of the 14 aa and 23 aa (in d) peptides with the calculated net charge, iso-electric point and the average hydrophilicity. e) Western immunoblotting of cell extracts and supernatant of cells transfected with pIgKE2-14 and pIgKE2-23.