Positive test controls include: Mouse brain, Rat brain. Immunogen sequence: MMSYLKQPPY GMNGLGLAGP AMDLLHPSVG YPATPRKQRR ERTTFTRSQL DVLEALFAKT RYPDIFMREE VALKINLPES RVQVWFKNRR AKCRQQQQSG. Probably plays a role in the development of the brain and the sense