1,559 results found
    1. Cell Biology
    2. Developmental Biology

    Developmentally regulated H2Av buffering via dynamic sequestration to lipid droplets in Drosophila embryos

    Matthew Richard Johnson et al.
    In early Drosophila embryos, histone H2Av continuously exchanges between cytoplasmic lipid droplets, a process that modulates H2Av import into nuclei and constitutes a novel post-translational strategy to regulate nuclear H2Av levels.
    1. Cell Biology

    CPEB4 is regulated during cell cycle by ERK2/Cdk1-mediated phosphorylation and its assembly into liquid-like droplets

    Jordina Guillén-Boixet et al.
    CPEB4's switch from translational repressor to activator is regulated during cell cycle by hyperphosphorylation of its intrinsically disordered domain, which controls its phase-separation into RNA-containing liquid-like droplets.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Dynamic metastable long-living droplets formed by sticker-spacer proteins

    Srivastav Ranganathan, Eugene I Shakhnovich
    Multi-scale simulations reveal a potential, ATP-independent mechanism resulting in the formation of the long-living multi-droplet state by multi-valent, spacer-sticker proteins.
    1. Cell Biology

    Seipin is required for converting nascent to mature lipid droplets

    Huajin Wang et al.
    Seipin oligomers dynamically interact with small, nascent lipid droplets near the endoplasmic reticulum to convert them into larger, mature lipid droplets in a newly identified step of lipid droplet formation.
    1. Cell Biology

    Centriole triplet microtubules are required for stable centriole formation and inheritance in human cells

    Jennifer T Wang et al.
    Deletion of delta-tubulin or epsilon-tubulin in human cells results in loss of centriolar triplet microtubules and defects in centriole structure and inheritance.
    1. Cancer Biology

    LIPG signaling promotes tumor initiation and metastasis of human basal-like triple-negative breast cancer

    Pang-Kuo Lo et al.
    LIPG, a lipoprotein lipase, executes its oncogenic function in human basal-like triple-negative breast cancer through its functional involvement in DTX3L-ISG15 signaling, an interferon-related pathway that regulates protein functionality by ISGylation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Arf1/COPI machinery acts directly on lipid droplets and enables their connection to the ER for protein targeting

    Florian Wilfling et al.
    The targeting of proteins from the endoplasmic reticulum to lipid droplets relies on surface modulation of the lipid droplet by the Arf1/COPI machinery.
    1. Cell Biology

    AMPK and vacuole-associated Atg14p orchestrate μ-lipophagy for energy production and long-term survival under glucose starvation

    Arnold Y Seo et al.
    Upon AMPK activation by acute glucose restriction, Atg14p shifts its distribution from ER exit sites to liquid-ordered membrane domains on the vacuolar surface where, together with Atg6p, it facilitates LD-specific autophagy (i.e., microautophagy of lipid droplets) for energy production and long-term survival of starved cells.
    1. Cell Biology

    Electron cryo-tomography provides insight into procentriole architecture and assembly mechanism

    Sam Li et al.
    A detailed description of the structure of procentriole MT triplet by cryoET, along with its associated non-tubulin proteins and its assembly intermediates, reveals possible molecular mechanism for the procentriole assembly.
    1. Cell Biology

    Human VPS13A is associated with multiple organelles and influences mitochondrial morphology and lipid droplet motility

    Wondwossen M Yeshaw et al.
    VPS13A is associated with the endoplasmic reticulum, mitochondria and lipid droplets and is required for cellular processes that require interaction between these organells.

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