Receptor for ATP that acts as a ligand-gated ion channel. Unlike most P2XRs, P2RX6 does not seem to form homotrimers or heterotrimers. Expressed predominantly in skeletal muscle. N-glycosylated. Belongs to the P2X receptor family. It is uncertain whether Met-1 or Met-11 is the initiator. Truncated N-terminus. Contaminating sequence. Sequence of unknown origin in the N-terminal part. Truncated N-terminus. Truncated N-terminus. Truncated N-terminus. Truncated N-terminus. P2X receptor entry