Immunogen sequence: KPGSGAQTLQ SSDLGLEDSG PPPVPKETVD SFLDLARNLF PSNLVVAAFR TYATDYKVVT QNSSSGNVTH EKIPIGTEIE G; Positive Samples: Raji, SW480, BT474, Mouse brain, Mouse kidney, Rat brain; Cellular Location: Melanosome, Membrane, Multi-pass membrane protei