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. 2018 Oct 2;9:2125. doi: 10.3389/fimmu.2018.02125

Figure 3.

Figure 3

(A) TACI variants with diverse deleted extracellular domains retain capacity for complex assembly. Upper panel shows HA labeled-TACI deletion mutant products: Full length TACI-L, TACI-S (minus CRD1), exon 1 and CRD1 (ΔE1-CRD1), CRD2 (ΔCDR2), minus the remaining extracellular 59 amino acids (Δaa105-164) and excision of both CRD1 and CRD2 (Δ21-104) were constructed. (B) Constructs were transfected into HEK-293T cells along with TACI-L-FLAG; after cell lysis, precipitates were harvested with anti-FLAG sepharose beads, and complexes in lysates examined after PAGE and immunoblotting using an anti-HA antibody. FLAG expression was tested as control (lower panel). Data are representative of 3 independent experiments.