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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 p-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.

P-type ('P' for purkinje fibers) calcium channels play a similar role to the N-type calcium channel in neurotransmitter release at the presynaptic terminal, but are found in purkinje cells in the electrical conduction system of the heart. Their properties are less well understood.

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• MeSH P-Type+Calcium+Channel

This box: view • talk • edit Membrane transport protein: ion channels
Ca	Voltage-dependent calcium channel (L-type/CACNA1C, N-type, P-type, Q-type, R-type, T-type) - Inositol triphosphate receptor - Ryanodine receptor - Cation channels of sperm
Na: Sodium channel	Nav1.4 - Nav1.5 - Nav1.7 - Epithelial sodium channel
K: Potassium channel	Voltage-gated (KvLQT1, KvLQT2, KvLQT3, HERG, Shaker gene, KCNE1) - Calcium-activated (BK channel, SK channel) - Inward-rectifier (ROMK, KCNJ2) - Tandem pore domain
Cl: Chloride channel	Cystic fibrosis transmembrane conductance regulator
Porin	Aquaporin (1, 2, 3, 4)
Transient receptor potential	TRPA - TRPC (TRPC6) - TRPM (TRPM6) - TRPML (Mucolipin-1) - TRPP - TRPV (TRPV1, TRPV6)
Other/general	Gap junction - Stretch-activated ion channel - Ligand-gated ion channel - Voltage-gated ion channel - Cyclic nucleotide-gated ion channel - Two-pore channel

This page uses content from the English-language version of Wikipedia. The original article was at P-type calcium channel. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License.