Figure 2From: Immunization of N terminus of enterovirus 71 VP4 elicits cross-protective antibody responsesProtein expression and purification. The expression of HBc-N149 and HBc-N149-VP4N20 protein was detected by Western blot. (A) Lane 1: HBc-N149-VP4N20. Lane 2: HBc-N149. Lane 3: Negative control. The protein purification was visualized by SDS-PAGE. (B) Lane 1: Uninduced bacteria expressing HBc-N149-VP4N20; Lane 2: Induced bacteria expressing HBc-N149-VP4N20; Lane 3: Purified HBc-N149-VP4N20.Back to article page