>gi|4505545 purinergic receptor P2X1 [Homo sapiens] MARRFQEELAAFLFEYDTPRMVLVRNKKVGVIFRLIQLVVLVYVIGWVFL YEKGYQTSSGLISSVSVKLKGLAVTQLPGLGPQVWDVADYVFPAQGDNSF VVMTNFIVTPKQTQGYCAEHPEGGICKEDSGCTPGKAKRKAQGIRTGKCV AFNDTVKTCEIFGWCPVEVDDDIPRPALLREAENFTLFIKNSISFPRFKV NRRNLVEEVNAAHMKTCLFHKTLHPLCPVFQLGYVVQESGQNFSTLAEKG GVVGITIDWHCDLDWHVRHCRPIYEFHGLYEEKNLSPGFNFRFARHFVEN GTNYRHLFKVFGIRFDILVDGKAGKFDIIPTMTTIGSGIGIFGVATVLCD LLLLHILPKRHYYKQKKFKYAEDMGPGAAERDLAATSSTLGLQENMRTS