Nucleoside triphosphate diphosphohydrolase-2 is the ecto-ATPase of type I cells in taste buds.
Bartel DL, Sullivan SL, Lavoie EG, S?vigny J, Finger TE. Nucleoside triphosphate diphosphohydrolase-2 is the ecto-ATPase of type I cells in taste buds. J Comp Neurol. 2006 Jul 01; 497(1):1-12.