Immunogen sequence: KQSKENTITI NCVTFPHPDT MPEQQLLKPT EWSYCDYFWA DKKDPQGNGT VAGFELLLQK QLKGKQMQKE MSEFIRERIK IEEDYAKNLA KLSQNSLASQ EEGSLGEAWA QVKKSLADEA EVHLKFS. Growth arrest-specific 7 is expressed primarily in terminally differentiated brain cells and