ELISA verification of IgA antibodies. Seven antibodies were subjected for verification by ELISA assay. This included IgA against SIX homeobox 2 (SIX2) (A), membrane protein, palmitoylated 1 (MPP1) (B), zinc binding alcohol dehydrogenase domain containing 2 (ZADH2) (C), glutamate receptor, ionotropic, N-methyl D-aspartate-like 1A (GRINL-1A) (D), TEA domain family member 4 (TEAD4) (E), Transglutaminase 2 (T-TG) (F), and ariadne homolog 2 (ARIH2) (G).