CACNA1I, Official Symbol CACNA1Iprovided by HGNC Official Full Name calcium voltage-gated channel subunit alpha1 Iprovided by HGNC Primary source HGNC:HGNC:1396 See related Ensembl:ENSG00000100346 MIM:608230; AllianceGenome:HGNC:1396 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as Cav3.3; NEDSIS; ca(v)3.3 Summary This gene encodes the pore-forming alpha subunit of a voltage gated calcium channel. The encoded protein is a member of a subfamily of calcium channels referred to as is a low voltage-activated, T-type, calcium channel. The channel encoded by this protein is characterized by a slower activation and inactivation compared to other T-type calcium channels. This protein may be involved in calcium signaling in neurons. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2011] Expression Biased expression in brain (RPKM 1.3), adrenal (RPKM 0.7) and 10 other tissues See more Orthologs mouse all