7,645 results found
    1. Cell Biology
    2. Neuroscience

    Clarinet (CLA-1), a novel active zone protein required for synaptic vesicle clustering and release

    Zhao Xuan et al.
    Clarinet, a novel C. elegans active zone protein with homology to vertebrate Piccolo and Rim, uses its different isoforms for diverse functions, including synaptic vesicle clustering, vesicle release and synaptogenesis.
    1. Neuroscience

    Position of UNC-13 in the active zone regulates synaptic vesicle release probability and release kinetics

    Keming Zhou et al.
    The precise position of UNC-13 at the active zone near a synapse depends on the N-terminus of the protein, and the C2A domain in particular, and is essential for accelerating neurotransmitter release.
    1. Immunology and Inflammation

    Reversible promoter methylation determines fluctuating expression of acute phase proteins

    Shi-Chao Zhang et al.
    DNA methylation status can be exploited to finely and reversibly tune the expression of highly inducible genes with CpG-poor promoters in response to environmental cues.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    A near atomic structure of the active human apoptosome

    Tat Cheung Cheng et al.
    A cryo-electron microscopy model of the active human apoptosome illuminates how this "wheel of death" binds the protease procaspase-9 to initiate programmed cell death.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    A novel region in the CaV2.1 α1 subunit C-terminus regulates fast synaptic vesicle fusion and vesicle docking at the mammalian presynaptic active zone

    Matthias Lübbert et al.
    A novel region in the CaV2.1 α1 subunit regulates coupling of synaptic vesicles to CaV2.1 calcium channels, synaptic vesicle release and docking, and the size of the fast and total releasable pools of synaptic vesicles.
    1. Structural Biology and Molecular Biophysics

    Structural model for differential cap maturation at growing microtubule ends

    Juan Estévez-Gallego et al.
    The tubulin GTPase cycle structurally modulates the microtubule cap, causing lattice expansion, which is an intermediate state involved in phosphate release and regulatory signaling.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    9Å structure of the COPI coat reveals that the Arf1 GTPase occupies two contrasting molecular environments

    Svetlana O Dodonova et al.
    A molecular model of the assembled COPI coat, determined by cryo-electron tomography of an in vitro reconstituted budding reaction, reveals details of interactions mediating coat assembly and shows the binding site of ArfGAP2.
    1. Structural Biology and Molecular Biophysics
    2. Biochemistry and Chemical Biology

    Structural mechanism of ligand activation in human calcium-sensing receptor

    Yong Geng et al.
    L-amino acids are agonists of calcium-sensing receptor, and act jointly with calcium and phosphate ions to control receptor function.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Genome-wide dynamics of Pol II elongation and its interplay with promoter proximal pausing, chromatin, and exons

    Iris Jonkers et al.
    The elongation rate of RNA Polymerase II varies greatly between and along genes, as this enzyme accelerates from stable pausing to rapid elongation within genes, and is influenced by CG-content, exons and chromatin.
    1. Biochemistry and Chemical Biology

    Prediction and characterization of enzymatic activities guided by sequence similarity and genome neighborhood networks

    Suwen Zhao et al.
    Genome neighborhood networks provide an efficient large-scale approach to mine metabolic pathway context for entire families of proteins and enzymes.

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