2,994 results found
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Cell-cycle quiescence maintains Caenorhabditis elegans germline stem cells independent of GLP-1/Notch

    Hannah S Seidel, Judith Kimble
    C. elegans germline stem cells become quiescent under starved conditions, and this quiescence maintains the stem cell state even in the absence of GLP-1/Notch signaling, which is otherwise essential for stem cell maintenance.
    1. Cell Biology
    2. Immunology and Inflammation

    The mucosal adjuvant cyclic di-GMP enhances antigen uptake and selectively activates pinocytosis-efficient cells in vivo

    Steven M Blaauboer et al.
    In mice, cyclic di-GMP is an effective mucosal pneumococcal vaccine adjuvant that stimulates the immune response via two distinct mechanisms.
    1. Developmental Biology

    Dephosphorylation of the NPR2 guanylyl cyclase contributes to inhibition of bone growth by fibroblast growth factor

    Leia C Shuhaibar et al.
    Fibroblast growth factor induces dephosphorylation and inactivation of the NPR2 guanylyl cyclase, thus decreasing cyclic GMP production in growth plate chondrocytes and contributing to FGF-dependent decreases in bone growth.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Mechanistic insight into the conserved allosteric regulation of periplasmic proteolysis by the signaling molecule cyclic-di-GMP

    Debashree Chatterjee et al.
    Structure-function analyses reveal the mechanistic underpinnings of inside-out transmembrane signaling that controls periplasmic proteolysis, and thereby biofilm formation, in bacteria and may be relevant in the context of other signaling proteins with similar control elements.
    1. Microbiology and Infectious Disease

    Cyclic di-GMP differentially tunes a bacterial flagellar motor through a novel class of CheY-like regulators

    Jutta Nesper et al.
    Precise control of the bacterial flagellar motor determines bacterial cell dispersal and bacteria-surface interactions.
    1. Biochemistry and Chemical Biology

    Enzyme Mechanisms: Wedging open a catalytic site

    Annie Beuve
    The activation mechanism of the nitric oxide receptor has been revealed by cryo-electron microscopy.
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    1. Biochemistry and Chemical Biology

    Total biosynthesis of the cyclic AMP booster forskolin from Coleus forskohlii

    Irini Pateraki et al.
    The entire biosynthetic pathway for the diterpenoid forskolin in Coleus forskohlii has been reconstituted in yeast.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Structure and mechanism of a Hypr GGDEF enzyme that activates cGAMP signaling to control extracellular metal respiration

    Zachary F Hallberg et al.
    A newfound signaling enzyme that diverged from a protein family ubiquitous in bacteria provides mechanistic insights into how new signaling activity emerges to control distinct cellular function and physiology.
    1. Biochemistry and Chemical Biology

    Allosteric activation of the nitric oxide receptor soluble guanylate cyclase mapped by cryo-electron microscopy

    Benjamin G Horst et al.
    The full-length structures of the mammalian nitric oxide receptor reveal the molecular activation steps and a binding site for the prototype of FDA-approved stimulators.
    1. Human Biology and Medicine
    2. Neuroscience

    A striatal-enriched intronic GPCR modulates huntingtin levels and toxicity

    Yuwei Yao et al.
    A cell-surface receptor called Gpr52 is able to lower the levels of the disease-causing protein mutant huntingtin and suppress its toxicity when knocked-down, making this receptor a promising drug target in Huntington's disease.

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