Immunogen sequence: HCHRLPGSYD STSSDSLYPR GIQFKRPHTV APWPPAYPPV TSYPPLSQPD LLPIPRSPQP LGGSHRTPSS RRDSDG. LAT (Linker for Activation of T cells) is a 36-38 kDa double-palmitoylated transmembrane adaptor protein expressed by T cells, pre-B cells, NK cells,