Figure 2From: M cell targeting by a Claudin 4 targeting peptide can enhance mucosal IgA responsesRecombinant HA trimeric fusion protein. Development of a hybrid recombinant HA fusion protein vaccine incorporating the CPE targeting peptide. The recombinant HA protein forms trimeric complexes detectable in non-denaturing gels. A, Schematic of the recombinant fusion, as detailed in the text. B, Non-denaturing gels with Coomassie stain and Western blot for HA, showing trimeric and monomeric forms of the protein. Note that in non-denaturing gels, the protein molecular weight markers are not as accurate as in denaturing gels, so the molecular weight comparisons are only relative.Back to article page