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. 2020 Jan 27;10:1194. doi: 10.1038/s41598-019-57279-w

Figure 5.

Figure 5

Epitope mapping through mutagenesis scanning of recombinant EGF receptor produced in HEK293-6E human cells. The reactivities of His-tagged mutated variants of human (A) and mouse (B) extracellular region of EGF receptor (erEGF-R) were evaluated on microtiter plates coated with nimotuzumab, cetuximab, K4 mAb and K5 mAb. Bound proteins were detected with an anti-His tag mAb followed by an anti-mouse Fc antibody conjugated to horseradish peroxidase. Relative reactivity (%) of each mutated protein was calculated taking the reactivity of the human non-mutated antigen as the reference. Arrows indicate loss of recognition of certain mutated variants.