437 results found
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Pre-existing bilayer stresses modulate triglyceride accumulation in the ER versus lipid droplets

    Valeria Zoni et al.
    In parallel to protein-driven processes, characteristic physicochemical properties of the endoplasmic reticulum membrane modulate intracellular fat accumulation and lipid droplet formation.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The brown adipocyte protein CIDEA promotes lipid droplet fusion via a phosphatidic acid-binding amphipathic helix

    David Barneda et al.
    An interaction between the brown fat protein CIDEA and the phospholipid phosphatidic acid is vital for the expansion of intracellular lipid droplets for energy storage.
    1. Cell Biology

    An in vivo reporter for tracking lipid droplet dynamics in transparent zebrafish

    Dianne Lumaquin et al.
    A novel transgenic lipid droplet reporter in transparent casper zebrafish allows direct visualization of individual lipid droplets in a living animal.
    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. 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. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    A novel role for lipid droplets in the organismal antibacterial response

    Preetha Anand et al.
    Histones bound to lipid droplets inside cells offer protection against bacteria in flies, and possibly mice, thus suggesting a possible new innate immunity pathway.
    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. Cancer Biology

    Lipid droplets and ferritin heavy chain: a devilish liaison in human cancer cell radioresistance

    Luca Tirinato et al.
    Lipid Droplet accumulation is a fingerprint shared by different human cancer radioresistant cells and their biogenesis strongly depend on FTH1 presence.
    1. Cell Biology

    TFAP2 transcription factors are regulators of lipid droplet biogenesis

    Cameron C Scott et al.
    The biogenesis of lipid droplets induced by Wnt3a is controlled by the transcription factor TFAP2, which presumably acts as a 'master' regulator of lipid droplet biogenesis.
    1. Cell Biology
    2. Physics of Living Systems

    Exceptional stability of a perilipin on lipid droplets depends on its polar residues, suggesting multimeric assembly

    Manuel Giménez-Andrés et al.
    The amphipathic helix of perilipin 4 relies on the organization of its polar residues to form a remarkably immobile and stable protein layer on the surface of lipid droplets.

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