4,951 results found
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Ca2+ signaling driving pacemaker activity in submucosal interstitial cells of Cajal in the murine colon

    Salah A Baker et al.
    An optogenetic dual-color Ca2+-imaging approach shows how submucosal pacemaker-cells, interstitial cells of Cajal, modulate smooth-muscle responses and drive colonic motility via complex Ca2+ signaling.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Sir2 phosphorylation through cAMP-PKA and CK2 signaling inhibits the lifespan extension activity of Sir2 in yeast

    Woo Kyu Kang et al.
    The deacetylase Sir2 fine-tunes transcription of PMA1 and other aging related genes in a cAMP-PKA and CK2 signaling dependent manner.
    1. Cell Biology
    2. Neuroscience

    Glial Ca2+signaling links endocytosis to K+ buffering around neuronal somas to regulate excitability

    Shirley Weiss et al.
    An unbiased genetic screen in Drosophila provides evidence for a direct link between glial Ca2+ 25 signaling and classical functions of glia in buffering external K+ as a mechanism to regulate neuronal excitability.
    1. Cell Biology
    2. Developmental Biology

    R-spondins can potentiate WNT signaling without LGRs

    Andres M Lebensohn, Rajat Rohatgi
    R-spondins 2 and 3 can potentiate WNT signaling in the absence of LGRs through interactions with ZNRF3/RNF43 E3 ubiquitin ligases and heparan sulfate proteoglycans, defining two alternative modes of R-spondin-mediated signaling.
    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. Developmental Biology

    Cell-autonomous regulation of epithelial cell quiescence by calcium channel Trpv6

    Yi Xin et al.
    Genetics, in vivo imaging, and unbiased chemical biology screens reveal that Trpv6 functions as a cellular quiescence regulator and delineates a Trpv6-mediated Ca2+ signaling pathway maintaining the quiescent state.
    1. Developmental Biology

    The metalloproteinase Papp-aa controls epithelial cell quiescence-proliferation transition

    Chengdong Liu et al.
    Zinc metalloproteinase Papp-aa-mediated Igfbp5 proteolysis functions as a [Ca2+]-regulated molecular switch linking IGF signaling to epithelial cell proliferation and bone calcification.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    CatSperĪ¶ 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. Developmental Biology
    2. Neuroscience

    Maturation of a central brain flight circuit in Drosophila requires Fz2/Ca2+ signaling

    Tarjani Agrawal, Gaiti Hasan
    Gene knockdown experiments in fruit fly pupae reveal the role of the signaling molecule 'dFrizzled2' in the development of a neural circuit that helps insects to fly continuously for extended periods.
    1. Neuroscience

    Drosophila larval to pupal switch under nutrient stress requires IP3R/Ca2+ signalling in glutamatergic interneurons

    Siddharth Jayakumar et al.
    The transformation of fruit fly larvae into pupae provides insights into the processes that enable animals to survive periods of food shortage.

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