Cav1.4 also known as the calcium channel, voltage-dependent, L type, alpha 1F subunit (CACNA1F), is a human gene.[5]
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. Alternate transcriptional splice variants of the gene described here have been observed but have not been thoroughly characterized. Mutations in this gene have been shown to cause incomplete X-linked congenital stationary night blindness type 2 (CSNB2).[5]
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Bech-Hansen NT, Naylor MJ, Maybaum TA, et al. (1998). "Loss-of-function mutations in a calcium-channel alpha1-subunit gene in Xp11.23 cause incomplete X-linked congenital stationary night blindness". Nat. Genet. 19 (3): 264–7. doi:10.1038/947. PMID9662400. S2CID42480901.
Naylor MJ, Rancourt DE, Bech-Hansen NT (2000). "Isolation and characterization of a calcium channel gene, Cacna1f, the murine orthologue of the gene for incomplete X-linked congenital stationary night blindness". Genomics. 66 (3): 324–7. doi:10.1006/geno.2000.6204. PMID10873387.
Boycott KM, Pearce WG, Bech-Hansen NT (2000). "Clinical variability among patients with incomplete X-linked congenital stationary night blindness and a founder mutation in CACNA1F". Can. J. Ophthalmol. 35 (4): 204–13. doi:10.1016/s0008-4182(00)80031-9. PMID10900517.
Boycott KM, Maybaum TA, Naylor MJ, et al. (2001). "A summary of 20 CACNA1F mutations identified in 36 families with incomplete X-linked congenital stationary night blindness, and characterization of splice variants". Hum. Genet. 108 (2): 91–7. doi:10.1007/s004390100461. PMID11281458. S2CID2844173.
Zito I, Allen LE, Patel RJ, et al. (2003). "Mutations in the CACNA1F and NYX genes in British CSNBX families". Hum. Mutat. 21 (2): 169. doi:10.1002/humu.9106. PMID12552565. S2CID13143864.
Jacobi FK, Hamel CP, Arnaud B, et al. (2003). "A novel CACNA1F mutation in a french family with the incomplete type of X-linked congenital stationary night blindness". Am. J. Ophthalmol. 135 (5): 733–6. doi:10.1016/S0002-9394(02)02109-8. PMID12719097.
Nakamura M, Ito S, Piao CH, et al. (2003). "Retinal and optic disc atrophy associated with a CACNA1F mutation in a Japanese family". Arch. Ophthalmol. 121 (7): 1028–33. doi:10.1001/archopht.121.7.1028. PMID12860808.