TGM2 and dermatitis herpetiformis, familial: Other serologic tests for the diagnosis of DH include the detection of antibodies directed to epidermal TG (eTG), that is currently considered the key autoantigen in DH, as well as antideamidated gliadin peptides antibodies (IgA and IgG), that are particularly reliable in children under two years old, and antibodies against to the covalent complex tTG-deamidated gliadin peptides, that was coined as neoepitope [26, 27].