Cav2.3 Antibody – Rabbit Polyclonal

Voltage-dependent calcium channels are multisubunit complexes consisting of alpha-1, alpha-2, beta, and delta subunits in a 1:1:1:1 ratio. These channels mediate the entry of calcium ions into excitable cells, and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. This gene encodes the alpha-1E subunit of the R-type calcium channels, which belong to the 'high-voltage activated' group that maybe involved in the modulation of firing patterns of neurons important for information processing. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Apr 2011]

CACNA1E: Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. The isoform alpha-1E gives rise to R-type calcium currents. R-type calcium channels belong to the 'high-voltage activated' (HVA) group and are blocked by nickel, and partially by omega-agatoxin-IIIA (omega-Aga-IIIA). They are however insensitive to dihydropyridines (DHP), omega- conotoxin-GVIA (omega-CTx-GVIA), and omega-agatoxin-IVA (omega- Aga-IVA). Calcium channels containing alpha-1E subunit could be involved in the modulation of firing patterns of neurons which is important for information processing. Belongs to the calcium channel alpha-1 subunit (TC 1.A.1.11) family. CACNA1E subfamily. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral; Channel, calcium; Membrane protein, multi-pass

Chromosomal Location of Human Ortholog: 1q25.3

Cellular Component: plasma membrane; voltage-gated calcium channel complex

Molecular Function: voltage-gated calcium channel activity; high voltage-gated calcium channel activity; calcium ion binding

Biological Process: membrane depolarization; synaptic transmission; transport; energy reserve metabolic process; regulation of insulin secretion