The Pfam:P2X_receptor domain within your query sequence starts at position 171 and ends at position 355, and its E-value is 2.1e-76.

DKIPRRNLVEEVNGTYMKKCLYHKILHPLCPVFSLGYVVRESGQDFRSLAEKGGVVGITIDWECDLDWHVRHCKPIYQFHGLYGEKNLSPGFNFRFARHFVQNGTNRRHLFKVFGIRFDILVDGKAGKFDIIPTMTTIGSGIGIFGVATVLCDLLLLHILPKRHYYKQKKFKYAEDMGPGEGERD
Pfam:P2X_receptor

Pfam:P2X_receptor
Pfam domain

Pfam ACC: