Our analysis also revealed that the TRAV1-2/TRAJ33 pair of alpha chain was preferentially used in TCRs from OLP peripheral blood, and the preferred V/J gene usage pattern of both chains in the oral mucosa of OLP patients was distinct from that in healthy controls (Figure 3H; Supplementary Figures 3A–C). This evidence concerns the gene TRAV1-2 and oral lichen planus.