12 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Acyl chain asymmetry and polyunsaturation of brain phospholipids facilitate membrane vesiculation without leakage

    Marco M Manni et al.
    The asymmetric combination of saturated and polyunsaturated acyl chains in phospholipids as typically observed in synapses makes membranes prone to deformation and fission without compromising their impermeability.
    1. Cell Biology

    Membrane fluidity is regulated by the C. elegans transmembrane protein FLD-1 and its human homologs TLCD1/2

    Mario Ruiz et al.
    Inhibition of C. elegans FLD-1 or Human TLCD1/2 prevents saturated fat lipotoxicity by allowing increased levels of membrane phospholipids that contain fluidizing long-chain polyunsaturated fatty acids.
    1. Cell Biology

    Evolutionarily conserved long-chain Acyl-CoA synthetases regulate membrane composition and fluidity

    Mario Ruiz et al.
    Silencing the acyl-coA synthethase ACSL1 protects against saturated fat lipotoxicity by preventing the degradation of polyunsaturated fatty acids, allowing them to be incorporated into phospholipids and improves membrane fluidity.
    1. Cell Biology
    2. Human Biology and Medicine

    Accelerated phosphatidylcholine turnover in macrophages promotes adipose tissue inflammation in obesity

    Kasparas Petkevicius et al.
    Obesity leads to increased phosphatidylcholine turnover in adipose tissue macrophages that makes them susceptible to saturated fatty acid-induced inflammation.
    1. Structural Biology and Molecular Biophysics

    Direct binding of phosphatidylglycerol at specific sites modulates desensitization of a ligand-gated ion channel

    Ailing Tong et al.
    Phosphatidylglycerol binding at multiple sites stabilizes the open state relative to the desensitized state of a pentameric ligand-gated ion channel.
    1. Cell Biology
    2. Human Biology and Medicine

    Lpcat3-dependent production of arachidonoyl phospholipids is a key determinant of triglyceride secretion

    Xin Rong et al.
    The enzyme Lpcat3 plays a unique role in the incorporation of arachidonic acid into membranes, which is required for the production of lipoproteins.
    1. Structural Biology and Molecular Biophysics

    Structural basis of phosphatidylcholine recognition by the C2–domain of cytosolic phospholipase A2α

    Yoshinori Hirano et al.
    The C2-domain of cytoplasmic phospholipase A2α is structurally designed to target PC-rich membrane regions to increase the enzymatic efficiency of the catalytic domain, which prefers PCs with polyunsaturated acyl chains.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Allosteric inhibition of a stem cell RNA-binding protein by an intermediary metabolite

    Carina C Clingman et al.
    The RNA-binding protein MSI1, which is required for stem cell and cancer cell proliferation in the brain and epithelial tissues, also directly senses the concentration of long non-esterified omega-9 fatty acids.
    1. Structural Biology and Molecular Biophysics

    Large-scale state-dependent membrane remodeling by a transporter protein

    Wenchang Zhou et al.
    The conformational mechanism of a transporter protein is found to have profound and energetically costly effects on the morphology of the surrounding membrane.
    1. Biochemistry and Chemical Biology

    Fatty acid remodeling by LPCAT3 enriches arachidonate in phospholipid membranes and regulates triglyceride transport

    Tomomi Hashidate-Yoshida et al.
    LPCAT3 incorporates arachidonic acid into membrane phospholipids, which promotes lipoprotein assembly by enabling triacylgylcerols to cluster in the membrane.

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