Immunogen sequence: LENSSKVVRD YNLQLFLQEN AVFHKPQPFQ FQPCDSDTSR QLESETGTTE EHSLNKEARK WATRVAREHK NIVHQQRVLN DLECHGAAVS EQSRA Highest antigen sequence identity to the following orthologs: Mouse - 97%, Rat - 98%. Adapter protein that plays a role in endocy