KCNU1

Last updated
KCNU1
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases KCNU1 , KCNMC1, KCa5, KCa5.1, Kcnma3, Slo3, potassium calcium-activated channel subfamily U member 1
External IDs OMIM: 615215 MGI: 1202300 HomoloGene: 7392 GeneCards: KCNU1
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001031836

NM_008432

RefSeq (protein)

NP_001027006

NP_032458

Location (UCSC) Chr 8: 36.78 – 36.94 Mb Chr 8: 25.85 – 25.94 Mb
PubMed search [3] [4]
Wikidata
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Potassium channel, subfamily U, member 1, also known as KCNU1, is a gene encoding the KCa5.1 protein. [5]

Contents

Although this channel is structurally related to the calcium-activated potassium channels, it cannot be classified as such since it is activated by high intracellular pH and relatively insensitive to changes in calcium concentrations. [6] [7] [8]

Related Research Articles

Calcium-activated potassium channels are potassium channels gated by calcium, or that are structurally or phylogenetically related to calcium gated channels. They were first discovered in 1958 by Gardos who saw that Calcium levels inside of a cell could affect the permeability of potassium through that cell membrane. Then in 1970, Meech was the first to observe that intracellular calcium could trigger potassium currents. In humans they are divided into three subtypes: large conductance or BK channels, which have very high conductance which range from 100 to 300 pS, intermediate conductance or IK channels, with intermediate conductance ranging from 25 to 100 pS, and small conductance or SK channels with small conductances from 2-25 pS.

KvLQT3

Kv7.3 (KvLQT3) is a potassium channel protein coded for by the gene KCNQ3.

SK3

SK3 also known as KCa2.3 is a protein that in humans is encoded by the KCNN3 gene.

Calcium-activated potassium channel subunit alpha-1 Voltage-gated potassium channel protein

Calcium-activated potassium channel subunit alpha-1 also known as large conductance calcium-activated potassium channel, subfamily M, alpha member 1 (KCa1.1), or BK channel alpha subunit, is a voltage gated potassium channel encoded by the KCNMA1 gene and characterized by their large conductance of potassium ions (K+) through cell membranes.

KCNN4

Potassium intermediate/small conductance calcium-activated channel, subfamily N, member 4, also known as KCNN4, is a human gene encoding the KCa3.1 protein.

CAMK1

Calcium/calmodulin-dependent protein kinase type 1 is an enzyme that in humans is encoded by the CAMK1 gene.

Ca<sub>v</sub>1.1

Cav1.1 also known as the calcium channel, voltage-dependent, L type, alpha 1S subunit, (CACNA1S), is a protein which in humans is encoded by the CACNA1S gene. It is also known as CACNL1A3 and the dihydropyridine receptor.

CACNB4

Voltage-dependent L-type calcium channel subunit beta-4 is a protein that in humans is encoded by the CACNB4 gene.

KCNAB1

Voltage-gated potassium channel subunit beta-1 is a protein that in humans is encoded by the KCNAB1 gene.

KCNJ15

Potassium inwardly-rectifying channel, subfamily J, member 15, also known as KCNJ15 is a human gene, which encodes the Kir4.2 protein.

KCNMB2

Calcium-activated potassium channel subunit beta-2 is a protein that in humans is encoded by the KCNMB2 gene.

KCNMB3

Calcium-activated potassium channel subunit beta-3 is a protein that in humans is encoded by the KCNMB3 gene.

KCNN2

Potassium intermediate/small conductance calcium-activated channel, subfamily N, member 2, also known as KCNN2, is a protein which in humans is encoded by the KCNN2 gene. KCNN2 is an ion channel protein also known as KCa2.2.

KCNQ5

Potassium voltage-gated channel subfamily KQT member 5 is a protein that in humans is encoded by the KCNQ5 gene.

KCNN1

Potassium intermediate/small conductance calcium-activated channel, subfamily N, member 1 , also known as KCNN1 is a human gene encoding the KCa2.1 protein.

KCNMB4

Calcium-activated potassium channel subunit beta-4 is a protein that in humans is encoded by the KCNMB4 gene.

KCNA6

Potassium voltage-gated channel subfamily A member 6 also known as Kv1.6 is a protein that in humans is encoded by the KCNA6 gene. The protein encoded by this gene is a voltage-gated potassium channel subunit.

KCNT1

Potassium channel subfamily T, member 1, also known as KCNT1 is a human gene that encodes the KCa4.1 protein. KCa4.1 is a member of the calcium-activated potassium channel protein family

KCNT2

Potassium channel subfamily T, member 2, also known as KCNT2 is a human gene that encodes the KNa protein. KCNT2, also known as the Slick channel is an outwardly rectifying potassium channel activated by internal raises in sodium or chloride ions.

Lawrence B. Salkoff American neuroscientist (born 1944)

Lawrence B. Salkoff is an American neuroscientist and currently a professor of neuroscience and genetics at Washington University School of Medicine

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000215262 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000031576 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Schreiber M, Wei A, Yuan A, Gaut J, Saito M, Salkoff L (February 1998). "Slo3, a novel pH-sensitive K+ channel from mammalian spermatocytes". J. Biol. Chem. 273 (6): 3509–16. doi: 10.1074/jbc.273.6.3509 . PMID   9452476.
  6. Wei AD, Gutman GA, Aldrich R, Chandy KG, Grissmer S, Wulff H (2005). "International Union of Pharmacology. LII. Nomenclature and molecular relationships of calcium-activated potassium channels". Pharmacol Rev. 57 (4): 463–72. doi:10.1124/pr.57.4.9. PMID   16382103. S2CID   8290401.
  7. Zhang X, Zeng X, Xia XM, Lingle CJ (September 2006). "pH-regulated Slo3 K+ channels: properties of unitary currents". J. Gen. Physiol. 128 (3): 301–15. doi:10.1085/jgp.200609551. PMC   2151565 . PMID   16940554.
  8. Zhang X, Zeng X, Lingle CJ (September 2006). "Slo3 K+ channels: voltage and pH dependence of macroscopic currents". J. Gen. Physiol. 128 (3): 317–36. doi:10.1085/jgp.200609552. PMC   2151566 . PMID   16940555.

Celia M. Santi, Alice Butler, Julia Kuhn, Aguan Wei, Lawrence Salkoff. Bovine and mouse SLO3 K+ channels: Evolutionary divergence points to a RCK1 region of critical function. J Biol Chem.284: 21589-98 (2009).

Further reading

Celia M. Santi, Alice Butler, Julia Kuhn, Aguan Wei, Lawrence Salkoff. Bovine and mouse SLO3 K+ channels: Evolutionary divergence points to a RCK1 region of critical function. J Biol Chem.284: 21589-98 (2009).