CACNA1F Proteins

This gene encodes a member of the alpha-1 subunit family\; a protein in the voltage-dependent calcium channel complex. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization and consist of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. The alpha-1 subunit has 24 transmembrane segments and forms the pore through which ions pass into the cell. There are multiple isoforms of each of the proteins in the complex, either encoded by different genes or the result of alternative splicing of transcripts. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. Mutations in this gene have been shown to cause incomplete X-linked congential stationary night blindness type 2 (CSNB2). [provided by RefSeq, Feb 2012].