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- Table of Contents
Facts about Voltage-dependent L-type calcium channel subunit alpha-1C.
Pore-forming, alpha-1C subunit of the voltage-gated calcium channel that gives rise to L-type calcium currents (PubMed:8392192, PubMed:7737988, PubMed:9087614, PubMed:9013606, PubMed:9607315, PubMed:12176756, PubMed:17071743, PubMed:11741969, PubMed:8099908, PubMed:12181424, PubMed:29078335, PubMed:29742403, PubMed:16299511, PubMed:20953164, PubMed:15454078, PubMed:15863612, PubMed:17224476, PubMed:24728418, PubMed:26253506, PubMed:27218670).
Mediates influx of calcium ions into the cytoplasm, and thereby triggers calcium release from the sarcoplasm (By similarity).Plays an important role in excitation- contraction coupling in the heart. Required for normal heart development and normal regulation of heart rhythm (PubMed:15454078, PubMed:15863612, PubMed:17224476, PubMed:24728418, PubMed:26253506).
Human | |
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Gene Name: | CACNA1C |
Uniprot: | Q13936 |
Entrez: | 775 |
Belongs to: |
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calcium channel alpha-1 subunit (TC 1.A.1.11) family |
alpha-1 subunit; calcium channel, voltage-dependent, L type, alpha 1C subunit; cardic dihydropyridine-sensitive, alpha-1 subunit; L type, alpha 1 polypeptide, isoform 1, cardic muscle; L type, alpha-1 polypeptide, isoform 1, cardiac muscle; splice variant 10*
Mass (kDA):
248.977 kDA
Human | |
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Location: | 12p13.33 |
Sequence: | 12; NC_000012.12 (1969552..2697950) |
Detected throughout the brain, including hippocampus, cerebellum and amygdala, throughout the heart and vascular system, including ductus arteriosus, in urinary bladder, and in retina and sclera in the eye (PubMed:15454078). Expressed in brain, heart, jejunum, ovary, pancreatic beta-cells and vascular smooth muscle. Overall expression is reduced in atherosclerotic vascular smooth muscle.
Cell membrane; Multi-pass membrane protein. Cell membrane, sarcolemma; Multi-pass membrane protein. Perikaryon. Cell junction, synapse, postsynaptic density membrane. Cell projection, dendrite. Cell membrane, sarcolemma, T-tubule. Colocalizes with ryanodine receptors in distinct clusters at the junctional membrane, where the sarcolemma and the sarcoplasmic reticulum are in close contact. The interaction between RRAD and CACNB2 promotes the expression of CACNA1C at the cell membrane.
PMID: 1316612 by Soldatov N.M.; Molecular diversity of L-type Ca2+ channel transcripts in human fibroblasts.
PMID: 8392192 by Schultz D., et al. Cloning, chromosomal localization, and functional expression of the alpha-1 subunit of the L-type voltage-dependent calcium channel from normal human heart.