479 results found
    1. Cell Biology

    TRPV4 is the temperature-sensitive ion channel of human sperm

    Nadine Mundt et al.
    The molecular identity of the temperature-sensitive ion channel of human sperm that ensures depolarization is TRPV4.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Slo1 is the principal potassium channel of human spermatozoa

    Nadja Mannowetz et al.
    Potassium ions enter and leave human sperm cells via a calcium-dependent ion channel that is also pH-independent.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The Ca2+-activated K+ current of human sperm is mediated by Slo3

    Christoph Brenker et al.
    The principal potassium ion channel in human sperm, Slo3, is primarily activated by calcium ions and controls the membrane potential of human sperm by intracellular calcium ion levels rather than intracellular pH.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    A K+-selective CNG channel orchestrates Ca2+ signalling in zebrafish sperm

    Sylvia Fechner et al.
    Zebrafish sperm display an unusual pathway for Ca2+ signalling.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    3D in situ imaging of the female reproductive tract reveals molecular signatures of fertilizing spermatozoa in mice

    Lukas Ded et al.
    Fertilizing mouse spermatozoa, characterized by intact CatSper channels, lack of protein tyrosine phosphorylation, and reacted acrosomes, in the female reproductive tract provide molecular insight into sperm selection for successful fertilization.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    CatSperζ regulates the structural continuity of sperm Ca2+ signaling domains and is required for normal fertility

    Jean-Ju Chung et al.
    A new component, CatSper zeta, is required for continuous alignment of the calcium channel along the sperm's tail and is crucial for normal sperm swimming behavior and fertility.
    1. Evolutionary Biology

    Sperm competition risk drives rapid ejaculate adjustments mediated by seminal fluid

    Michael J Bartlett et al.
    Seminal fluid harbours the as yet unknown mechanism that facilitates rapid adjustment of sperm velocity in response to changing sperm competition risk.
    1. Cell Biology

    A novel biosensor to study cAMP dynamics in cilia and flagella

    Shatanik Mukherjee et al.
    A new FRET-based cAMP biosensor with nanomolar sensitivity makes it possible to measure cAMP dynamics in miniscule subcellular compartments like cilia and flagella.
    1. Physics of Living Systems

    Sperm chemotaxis is driven by the slope of the chemoattractant concentration field

    Héctor Vicente Ramírez-Gómez et al.
    The slope of the chemoattractant concentration gradient is a driving force for sperm chemotaxis, by coordinating the entrainment of information flow between sensing, signaling and motility.
    1. Developmental Biology

    DNA methylation and gene expression changes derived from assisted reproductive technologies can be decreased by reproductive fluids

    Sebastian Canovas et al.
    Reproductive fluids help the correct establishment of some epigenetic marks and gene expression in preimplantation pig embryos.

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