3,488 results found
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Stochastic cell-cycle entry and cell-state-dependent fate outputs of injury-reactivated tectal radial glia in zebrafish

    Shuguang Yu, Jie He
    The analysis of injury-reactivated tectal radial glia in zebrafish reveals a stochastic cell-cycle entry and cell-state-dependent regulation of the balance between neurogenesis and gliogenesis.
    1. Structural Biology and Molecular Biophysics

    Structural and functional insights into the bona fide catalytic state of Streptococcus pyogenes Cas9 HNH nuclease domain

    Zhicheng Zuo et al.
    The catalytic activation of the Cas9 HNH domain involves a unique conformational change in the ββα-metal motif that is collectively driven by the interactions with the metal ions and DNA.
    1. Cell Biology

    Spatiotemporal control of mitotic exit during anaphase by an aurora B-Cdk1 crosstalk

    Olga Afonso et al.
    Quantitative live-cell microscopy and molecular perturbations in Drosophila and human cells reveal a crosstalk between molecular 'rulers' (Aurora B) and 'clocks' (Cdk1) that coordinates mitotic exit in space and time.
    1. Immunology and Inflammation

    Toxoplasma gondii infection drives conversion of NK cells into ILC1-like cells

    Eugene Park et al.
    Toxoplasma gondii infection leads to conversion of natural killer cells into cells resembling innate lymphoid cells, group 1, that circulate widely, disrupting current notions suggesting that these cells have distinct lineages.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Subtle selectivity in a pheromone sensor triumvirate desynchronizes competence and predation in a human gut commensal

    Johann Mignolet et al.
    A new cell–cell communication system in Streptococcus salivarius, a human gut commensal, discriminates between close signaling molecules to specifically produce bacteriocin-based antimicrobials and disconnects it from foreign DNA acquisition.
    1. Immunology and Inflammation

    B cell receptor and Toll-like receptor signaling coordinate to control distinct B-1 responses to both self and the microbiota

    Lieselotte SM Kreuk et al.
    Microbial-sensing TLRs drive responses to the microbiota, while nucleic-acid sensing TLRs control responses to endogenous ligands, revealing novel regulation of B-1a responses through integrated BCR/TLR mediated activation.
    1. Immunology and Inflammation

    TLR induces reorganization of the IgM-BCR complex regulating murine B-1 cell responses to infections

    Hannah P Savage et al.
    B-1 cell unresponsiveness to antigen-stimulation is overcome during infections when Toll-like receptor engagement removes negative regulators of B cell receptor signaling, thereby supporting B-1 cell differentiation to IgM-secreting plasmablasts.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A potent voltage-gated calcium channel inhibitor engineered from a nanobody targeted to auxiliary CaVβ subunits

    Travis J Morgenstern et al.
    A novel engineered protein that uncouples electrical signals from downstream biological responses in excitable cells provides a unique investigative tool with potential therapeutic applications.
    1. Neuroscience

    Spinal V2b neurons reveal a role for ipsilateral inhibition in speed control

    Rebecca A Callahan et al.
    Two anatomically and genetically distinct subtypes of spinal V2b neurons provide inhibition onto motor circuits and serve as a brake on locomotor speed.
    1. Microbiology and Infectious Disease

    USP49 potently stabilizes APOBEC3G protein by removing ubiquitin and inhibits HIV-1 replication

    Ting Pan et al.
    USP49 can increase A3G protein expression and enhance its anti-HIV-1 activity, which is also correlated with hypermutations and affects the HIV-1 latent reservoir.

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