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. 2019 Aug 16;6(5):e603. doi: 10.1212/NXI.0000000000000603

Figure 4. ELISA of total IgG and IgG subclasses (bars) and C1q deposition in the complement binding assay (line).

Figure 4

IgG3 can be identified as the dominant subclass in patients 1, 2, and 6, IgG 2 and 4 in patient 4, and IgG4 in patient 5. Complement deposition can be measured in patients 1 and 2 with IgG3 predominance and in patient 4 with IgG2 and IgG4 autoantibodies. No complement deposition was detectable in patient 5 with predominance of IgG4 and patients 3 and 6 with low titers of total IgG. IgG = immunoglobulin G.