CatSper mediates not only chemotactic behavior but also the motility of ascidian sperm

T Kijima, D Kurokawa, Y Sasakura… - Frontiers in Cell and …, 2023 - frontiersin.org
Introduction: Sperm motility, including chemotactic behavior, is regulated by changes in the
intracellular Ca2+ concentration, and the sperm-specific Ca2+ channel CatSper has been …

Comparative genomic analysis suggests that the sperm-specific sodium/proton exchanger and soluble adenylyl cyclase are key regulators of CatSper among the …

F Romero, T Nishigaki - Zoological Letters, 2019 - Springer
Background CatSper is a sperm-specific calcium ion (Ca 2+) channel, which regulates
sperm flagellar beating by tuning cytoplasmic Ca 2+ concentrations. Although this Ca 2+ …

CatSper1 required for evoked Ca2+ entry and control of flagellar function in sperm

AE Carlson, RE Westenbroek, T Quill… - Proceedings of the …, 2003 - National Acad Sciences
CatSper family proteins are putative ion channels expressed exclusively in membranes of
the sperm flagellum and required for male fertility. Here, we show that mouse CatSper1 is …

CatSper calcium channels: 20 years on

JY Hwang, JJ Chung - Physiology, 2023 - journals.physiology.org
The flagellar-specific Ca2+ channel CatSper is the predominant Ca2+ entry site in
mammalian sperm. CatSper-mediated Ca2+ signaling affects nearly every event that …

Structural evolution of CatSper1 in rodents is influenced by sperm competition, with effects on sperm swimming velocity

A Vicens, M Tourmente, ERS Roldan - BMC Evolutionary Biology, 2014 - Springer
Background Competition between spermatozoa from rival males for success in fertilization
(ie, sperm competition) is an important selective force driving the evolution of male …

CatSper and sperm hyperactivation

LJ Kong, YY Yang, GL Wang - … nan ke xue= National Journal of …, 2007 - europepmc.org
Elevation of sperm Ca2+ seems to be responsible for an asymmetric form of motility called
hyperactivation, which is first seen near the time of fertilization. CatSper family proteins are …

All four CatSper ion channel proteins are required for male fertility and sperm cell hyperactivated motility

H Qi, MM Moran, B Navarro… - Proceedings of the …, 2007 - National Acad Sciences
Mammalian spermatozoa become motile at ejaculation, but before they can fertilize the egg,
they must acquire more thrust to penetrate the cumulus and zona pellucida. The forceful …

The Ca2+ channel CatSper is not activated by cAMP/PKA signaling but directly affected by chemicals used to probe the action of cAMP and PKA

T Wang, S Young, H Krenz, F Tüttelmann… - Journal of Biological …, 2020 - ASBMB
The sperm-specific Ca 2+ channel CatSper (cation channel of sperm) controls the influx of
Ca 2+ into the flagellum and, thereby, the swimming behavior of sperm. A hallmark of human …

A novel gene required for male fertility and functional CATSPER channel formation in spermatozoa

JJL Chung, B Navarro, G Krapivinsky, L Krapivinsky… - Biophysical …, 2011 - cell.com
Calcium (Ca2+) signaling is critical for successful fertilization. In spermatozoa, capacitation,
hyperactivation of motility, and the acrosome reaction are mediated by changes in the …

CatSper: a unique calcium channel of the sperm flagellum

PV Lishko, N Mannowetz - Current opinion in physiology, 2018 - Elsevier
Highlights•In vivo, a successful fertilization is dependent on sperm hyperactivated motility.•
Hyperactivation is triggered by a calcium influx into flagellum via sperm-specific calcium …