inward rectifier potassium channels

inward rectifier potassium channels
a family of cell membrane channels selective for potassium that pass a large current of potassium ions into the cell in response to membrane hyperpolarization but only a small current outward above the resting potential. They help to maintain resting potential in many cells and to repolarize excitable cells.

Medical dictionary. 2011.

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  • Inward-rectifier potassium ion channel — Inwardly rectifing potassium channels (Kir, IRK) are a specific subset of potassium selective ion channels. To date, seven subfamilies have been identified in various mammalian cell types.cite journal |author=Kubo Y, Adelman JP, Clapham DE, Jan… …   Wikipedia

  • ATP-Sensitive Potassium Channels — protein Name = potassium inwardly rectifying channel, subfamily J, member 11 caption = width = HGNCid = 6257 Symbol = KCNJ11 AltSymbols = EntrezGene = 3767 OMIM = 600937 RefSeq = NM 000525 UniProt = Q14654 PDB = ECnumber = Chromosome = 11 Arm = p …   Wikipedia

  • Potassium channel — Top view of potassium ions (purple) moving through potassium channel (PDB 1BL8) In the field of cell biology, potassium channels are the most widely distributed type of ion channel and are found in virtually all living organisms …   Wikipedia

  • G protein-coupled inwardly-rectifying potassium channel — protein Name = potassium inwardly rectifying channel, subfamily J, member 3 caption = width = HGNCid = 6264 Symbol = KCNJ3 AltSymbols = Kir3.1, GIRK1, KGA EntrezGene = 3760 OMIM = 601534 RefSeq = NM 002239 UniProt = P48549 PDB = ECnumber =… …   Wikipedia

  • potassium channel — Ion channel selective for potassium ions. There are diverse types with different functions, for example: delayed rectifier channels, M channels, A channels, inward rectifier channels, Ca dependent K+ channels …   Dictionary of molecular biology

  • Voltage-gated potassium channel — Ion channel (eukariotic) Potassium channel, structure in a membrane like environment. Calculated hydrocarbon boundaries of the lipid bilayer are indicated by red and blue dots. Identifiers Symbol Ion trans …   Wikipedia

  • Tandem pore domain potassium channel — Two pore domain potassium channels: This family of 15 members form what is known as leak channels which possess Goldman Hodgkin Katz (open) rectification.cite journal |author=Goldstein SA, Bayliss DA, Kim D, Lesage F, Plant LD, Rajan… …   Wikipedia

  • Chloride potassium symporter — The chloride potassium symporter is a membrane transport protein that is present in the S3 segment of the renal proximal tubule[1]. It functions in renal chloride reabsorption to transport chloride across the basolateral membrane.[1] They can… …   Wikipedia

  • KCNJ14 — Potassium inwardly rectifying channel, subfamily J, member 14 (KCNJ14), also known as Kir2.4, is a human gene.cite web | title = Entrez Gene: KCNJ14 potassium inwardly rectifying channel, subfamily J, member 14| url =… …   Wikipedia

  • Ion channel — Not to be confused with: Ion Television or Ion implantation. Schematic diagram of an ion channel. 1 channel domains (typically four per channel), 2 outer vestibule, 3 selectivity filter, 4 diameter of selectivity filter, 5 phosphorylation site, 6 …   Wikipedia

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