Purinergic receptor P2X 7 MPACCSCSDV FQYETNKVTR IQSMNYGTIK WFFHVIIFSY VCFALVSDKL YQRKEPVISS VHTKVKGIAE VKEEIVENGV KKLVHSVFDT ADYTFPLQGN SFFVMTNFLK TEGQEQRLCP EYPTRRTLCS SDRGCKKGWM DPQSKGLLS