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. 2019 Nov 26;7:362. doi: 10.3389/fbioe.2019.00362

Figure 4.

Figure 4

Effects of ER-retention sequence (ERS) on Infliximab Fab functional display. (A) ERSs were fused to the C-terminus of Infliximab light chain. 0.1 μM anti-FLAG-iFluor647, 0.1 μM anti-HA-FITC, and 0.1–1.0 nM TNFα/0.1 μM anti-His6-iFluor647 were used for labeling induced cells. Display of heavy chain (FLAG+, B), display of light chain (HA+, C), efficiencies of functional display (TNFα+ cells/HA+ cells, D) were presented as mean ± S.E. (n=3 independent experiments) with Student's t-test being performed, *P < 0.05. Effects of four ERSs (KDEL, HDEL, FEHDEL, and WEHDEL) were tested and compared to the clones without ERS.