Immunogen sequence: YGVKIIELSQ TTAKVSFNKP DSHGGVPIHH YQVDVKEVAS EIWKIVRSHG VQTMVVLNNL EPNTTYEIRV AAVNGKGQGD YSKIEIFQTL PVREPSPPSI HGQPSSGKSF KLSITKQDDG GAPILEYIVK YRSKDKEDQW LEKKVQGNKD HIILEHLQWT MGYEVQITAA NRLGYSEPTV YEFSMPPKPN I. NCAM2 (neural cell adh