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. 2019 Aug 27;10:1967. doi: 10.3389/fimmu.2019.01967

Figure 4.

Figure 4

CD52-Fc after fractionation by anion-exchange chromatography. (A) Anion exchange chromatography on a MonoQ-GL column fractionated the recombinant human CD52-Fc III into a gradient of anionic glycoforms displaying a spectrum of pI (see Supplementary Figure 2). (B) IFN–γ ELISpot assay with 2 × 106 PBMCs in 200 μL/well incubated with no antigen or with anti-CD3/CD28 antibody Dynabeads in the presence of recombinant human CD52-Fc fractions (F29–F52; 5 μg/ml).