Q-type calcium channel

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calcium channel, voltage-dependent, P/Q type, alpha 1A subunit
Identifiers
Symbol CACNA1A
Alt. Symbols CACNL1A4, SCA6, MHP1, MHP
Entrez 773
HUGO 1388
OMIM 601011
RefSeq NM_000068
UniProt O00555
Other data
Locus Chr. 19 p13

The Q-type calcium channel is a type of voltage-dependent calcium channel. Like the others of this class, the α1 subunit is the one that determines most of the channel's properties.

They are poorly understood, but like R-type calcium channels, they appear to be present in cerebellar granule cells. They have a high threshold of activation and relatively slow kinetics.

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Membrane transport protein: ion channels
Ca2+: Calcium channel
Na+: Sodium channel
Navα (1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.9, 7A) • Navβ (1, 2, 3, 4) • Epithelial sodium channel
K+: Potassium channel
Cl-: Chloride channel
Porin
Cations: TRP
TRPA (1) • TRPC (1, 2, 3, 4, 4AP, 5, 6, 7) • TRPM (1, 2, 3, 4, 5, 6, 7, 8) • TRPML (Mucolipin-1) • TRPP (1, 2) • TRPV (1, 2, 3, 4, 5, 6)
Other/general