H(+)-gated cation channels: neuronal acid sensors in the NaC/DEG family of ion channels.
Novel members of the amiloride-sensitive Na+ channel/ degenerin family of ion channels were discovered recently. With the cloning of four mammalian H(+)-gated cation channel subunits, the first members of a novel class of ligand-gated cation channels were identified. H(+)-gated cation channel subunits are expressed in the central and peripheral nervous system. In sensory neurones, they are thought to be involved in the perception of pain that accompanies tissue acidosis.
Institut de Pharmacologie Moléculaire et Cellulaire, CNRS-UPR411, Valbonne, France. ipmc@ipmc.cnrs.fr
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Waldmann
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Lazdunski
D000818:Animals; D002412:Cations / Q000378:metabolism; D062626:Degenerin Sodium Channels; D053503:Epithelial Sodium Channels; D015640:Ion Channel Gating / Q000502:physiology*; D007473:Ion Channels / Q000235:genetics* / Q000378:metabolism; D008969:Molecular Sequence Data; D009419:Nerve Tissue Proteins / Q000235:genetics* / Q000378:metabolism; D009474:Neurons / Q000737:chemistry* / Q000502:physiology; D011522:Protons; D017386:Sequence Homology, Amino Acid; D015398:Signal Transduction / Q000502:physiology; D015222:Sodium Channels / Q000235:genetics* / Q000378:metabolism
D002412:Cations; D062626:Degenerin Sodium Channels; D053503:Epithelial Sodium Channels; D007473:Ion Channels; D009419:Nerve Tissue Proteins; D011522:Protons; D015222:Sodium Channels