Abstract
Though voltage‐dependent Ca2+ channels contribute to the orchestratation of sperm differentiation and function, many questions remain concerning their molecular architecture. This study shows that α1A and α1C Ca2+ channel pore‐forming subunits are expressed in spermatogenic cells. In addition, it provides what is to our knowledge the first evidence for the presence of the Ca2+ channel β auxiliary subunits in spermatogenic cells and sperm. Using RT‐PCR we demonstrated the expression of all four known genes encoding the β subunits in spermatogenic cells. Specific antibodies detected three of these proteins in spermatogenic cells and sperm. In spermatogenic cells both α1 and β subunits are diffusely distributed throughout the cytoplasm while in sperm they appear to be regionally localized.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 25, 2002, 1:52 p.m.) |
Deposited | 1 year, 11 months ago (Sept. 16, 2023, 10:58 p.m.) |
Indexed | 5 months, 1 week ago (March 19, 2025, 9:20 a.m.) |
Issued | 25 years, 9 months ago (Nov. 22, 1999) |
Published | 25 years, 9 months ago (Nov. 22, 1999) |
Published Online | 25 years, 9 months ago (Nov. 22, 1999) |
Published Print | 25 years, 9 months ago (Nov. 26, 1999) |
@article{Serrano_1999, title={Voltage‐dependent Ca2+ channel subunit expression and immunolocalization in mouse spermatogenic cells and sperm}, volume={462}, ISSN={1873-3468}, url={http://dx.doi.org/10.1016/s0014-5793(99)01518-5}, DOI={10.1016/s0014-5793(99)01518-5}, number={1–2}, journal={FEBS Letters}, publisher={Wiley}, author={Serrano, Carmen J and Treviño, Claudia L and Felix, Ricardo and Darszon, Alberto}, year={1999}, month=nov, pages={171–176} }