Positive Samples: U-251MG, Mouse brain Immunogen sequence: LQGLQVLLPD YLQERFVQAA LSYIACNSEG EFICKENDCW CHCGPKFPEC NCPSMDIQAM EENLLRITET WKAYNSDFEE SDEFKLFMKR LPMNYFLNTS TIMHLWTMDS NFQRRYEQLE NSMKQLFLKA QKIVHKLFSL SKRCHKQPLI SLPRQRTSTY WLTRIQSFLY CNENGLLG