International Journal of Molecular Sciences Article Quantitative Proteomic Analysis of Escherichia coli Heat-Labile Toxin B Subunit (LTB) with Enterovirus 71 (EV71) Subunit VP1 Lin Liu 1, Yongping Ma 1,*, Huicong Zhou 1 and Mingjun Wu 2 1 Key Laboratory of Biochemistry and Molecular Biology, ...