A Venn diagram illustrated high concordance among the assays for tTG autoantibody detection, reinforcing the reliability of this autoantibody marker.<h4>Conclusion</h4>The robust and consistent detection of celiac disease-specific autoantibodies, particularly tTG IgA and DGP autoantibodies, across multiple serological platforms underscores their diagnostic utility. Here, TGM2 is linked to celiac disease.