TRAV26-1 and type 1 diabetes mellitus: Similar observations have been found in TCRs utilising the TRAV26-1 gene in coeliac disease (TCRs S16, D2, JR5.143) and in type I diabetes (TCRs A2.13, A5.5, A5.844 and TCRs ET600-1, ET650-1, -2, -3, -4, and -545).