Immunogen sequence: RPWPGCGPHP GPGTRRPTSG PPRPLWLLLP LLPLLAAPGA SAYSFPQQHT MQHWARRLEQ EVDGVMRIFG GVQQLREIYK DNRNLFEVQE NEPQKLVEKV AGDIESLLDR KVQALKRLAD AAENFQKAHR WQDNIKEEDI VYYDAKADAE LDDPESEDVE RGSKASTLRL DFIEDPNFKN K; Positive Samples: Mouse brain, Ra