There are eight subtypes of P2Y receptors (P2Y1, P2Y2, P2Y4, P2Y6, P2Y11, P2Y12, P2Y13, and P2Y14
), which are ubiquitously expressed in body, including the CNS .
Li et al., "Geniposide attenuates inflammatory response by suppressing P2Y14
receptor and downstream ERK1/2 signaling pathway in oxygen and glucose deprivation-induced brain microvascular endothelial cells," Journal of Ethnopharmacology, vol.
There are seven known P2X receptor subtypes (P2X1-7) and eight P2Y receptor subtypes (P2Y1, P2Y2, p2y4, P2Y6, P2Y11, P2Y12, P2Y13, and P2Y14