Immunogen sequence: MKYKNLMARA LYDNVPECAE ELAFRKGDIL TVIEQNTGGL EGWWLCSLHG RQGIVPGNRV KLLIGPMQET ASSHEQPASG LMQQTFGQQK LYQVPNPQAA PRDTIYQVPP SYQNQGIYQV PTGHGTQEQE VYQVPPSVQR SIGGTSGPHV GKKV; Positive Samples: B-cell; Cellular Location: Cell junction, Cel