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Science & ResearchJul 28, 2026

Semenogelin-1 Inhibition of Mouse Sperm Hyperactivation Reveals Two Functional Domains Modulating CatSper Channel

Seminal plasma is essential for sperm survival and function after ejaculation.

Seminal plasma is essential for sperm survival and function after ejaculation. Semenogelin-1 (SEMG1), the predominant seminal plasma protein, transiently suppresses sperm motility and hyperactivation after ejaculation through epididymal protease inhibitor (EPPIN) binding.…

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