Immunogen sequence: NAIVHYRDDL DLQNLIDFGQ KKFSCCGGIS YKDWSQNMYF NCSEDNPSRE RCSVPYSCCL PTPDQAVINT MCGQGMQAFD YLEASKVIYT NGCIDKLVNW IHSNLFL Highest antigen sequence identity to the following orthologs: Mouse - 97%, Rat - 97%. TSPAN33 plays an important rol