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Q-type calcium channel

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calcium channel, voltage-dependent, P/Q type, alpha 1A subunit
Symbol(s): CACNA1A CACNL1A4, SCA6, MHP1, MHP
Locus: 19 p13
EC number [1]
EntrezGene 773
OMIM 601011
RefSeq NM_000068
UniProt O00555

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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