title: Cation selectivity in ion channels.
authors: I D
authors: ID
authors: Kerr
authors: M S
authors: MS
authors: Sansom
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism; D000595:Amino Acid Sequence; D000818:Animals; D015640:Ion Channel Gating; D008969:Molecular Sequence Data; D016716:PC12 Cells; D015221:Potassium Channels / Q000378:metabolism; D051381:Rats; D018048:Receptors, Purinergic P2 / Q000378:metabolism*; D014981:Xenopus
chemical_list: D015221:Potassium Channels; D018048:Receptors, Purinergic P2; D000255:Adenosine Triphosphate