Immunogen sequence: REDYICYARF NHTQTIQQKQ PISVKVISVD ELNDTIAANL SDTEFYGAKS SRERPPTFLT PEGNASNKEE LRGNVLSLEC IAEGLPTPII YWAKEDGMLP KNRTVYKNFE KTLQIIHVSE ADSGNYQC Highest antigen sequence identity to the following orthologs: Mouse - 92%, Rat - 91%. Neuron-