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. 2017 Dec 6;8:2405. doi: 10.3389/fmicb.2017.02405

FIGURE 2.

FIGURE 2

SDS-PAGE (A) and Western Blot (B) analysis of the expression of E. coli cell surface display systems for HuNoV (GII.4) recombinant capsid proteins with (3) or without the linker fragment (2) and the thrombin-released P proteins (4). M: prestained protein ladder (Catalog No.: 26616, Thermo Fisher, Shanghai, China); (1) pET-28a/BL21; (2) pET28a-inaQn-P (GII.4)/BL21; (3) pET28a-inaQn-TB-P (GII.4) /BL21; (4) Thrombin-released P proteins.