CatSper1, is a protein which in humans is encoded by the CATSPER1gene.[5][6][7] CatSper1 is a member of the cation channels of sperm family of protein. The four proteins in this family together form a Ca2+-permeant ion channel specific essential for the correct function of sperm cells.[8]
Function
Calcium ions play a primary role in the regulation of sperm motility. This gene belongs to a family of putative cation channels that are specific to spermatozoa and localize to the flagellum. The protein family features a single repeat with six membrane-spanning segments and a predicted calcium-selective pore region.[9]
^Clapham DE, Garbers DL (December 2005). "International Union of Pharmacology. L. Nomenclature and structure-function relationships of CatSper and two-pore channels". Pharmacol. Rev. 57 (4): 451–4. doi:10.1124/pr.57.4.7. PMID16382101. S2CID35096827.
Clapham DE, Garbers DL (2005). "International Union of Pharmacology. L. Nomenclature and structure-function relationships of CatSper and two-pore channels". Pharmacol. Rev. 57 (4): 451–4. doi:10.1124/pr.57.4.7. PMID16382101. S2CID35096827.
Nikpoor P, Mowla SJ, Movahedin M, et al. (2004). "CatSper gene expression in postnatal development of mouse testis and in subfertile men with deficient sperm motility". Hum. Reprod. 19 (1): 124–8. doi:10.1093/humrep/deh043. PMID14688170.