What is the blood test tissue transglutaminase antibody?

Coeliac Disease.: This is a test for the autoantibody to the transglutaminase protein. These are found in coeliac disease. This is a sign, that there is a reaction to transglutaminase protein and its binding with gliadin, a wheat protein, as well as cross reaction with the small intestine. Thus, patients cannot get nutrition from foods containing gliadin, and need a gluten-free diet..