Immunogen sequence: PTPEDNRRPL WEPEETVVIA LYDYQTNDPQ ELALRRNEEY CLLDSSEIHW WRVQDRNGHE GYVPSSYLVE KSPNNLETYE WYN Antigen sequence identity: Mouse 89%; Rat 89%. ITK is a tyrosine kinase expressed in T-cells which contains both SH2 and SH3 domains. ITK is t