ELISA analysis of serially diluted GTX03790 Human IgM isotype control using Mouse Anti-Human IgG Hinge, Mouse Anti-Human IgG2 Fc, Mouse Anti-Human IgG3 Hinge, Mouse Anti-Human IgG4 PFc', Mouse Anti-Human IgA1, Mouse Anti-Human IgA2, Mouse Anti-Human IgD, Mouse Anti-Human IgE Fc, Mouse Anti-Human IgM, Mouse Anti-Human Kappa, and Mouse Anti-Human Lambda followed by Streptavidin-HRP and quantified.