128 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Movement of accessible plasma membrane cholesterol by the GRAMD1 lipid transfer protein complex

    Tomoki Naito et al.
    GRAMD1 proteins sense a transient expansion of the accessible pool of plasma membrane cholesterol and facilitate its transport to the endoplasmic reticulum at ER-PM contact sites.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Release of cholesterol-rich particles from the macrophage plasma membrane during movement of filopodia and lamellipodia

    Xuchen Hu et al.
    Macrophages release 30-nm vesicular particles enriched in accessible cholesterol during cellular locomotion, a discovery that is likely relevant to cholesterol disposal by these cells.
    1. Biochemistry and Chemical Biology

    Variability of cholesterol accessibility in human red blood cells measured using a bacterial cholesterol-binding toxin

    Rima S Chakrabarti et al.
    Accessible cholesterol levels in human red blood cells were found to be stable within individuals but vary >10-fold among individuals and this variability may contribute to differences in cholesterol trafficking among tissues.
    1. Structural Biology and Molecular Biophysics

    Crystal structure of dopamine receptor D4 bound to the subtype selective ligand, L745870

    Ye Zhou et al.
    The structure of receptor-ligand complex reveals the ligand binding selectivity among different dopamine receptor subtypes and also shows how this ligand class inhibits receptor activity.
    1. Microbiology and Infectious Disease

    Vibrio deploys type 2 secreted lipase to esterify cholesterol with host fatty acids and mediate cell egress

    Suneeta Chimalapati et al.
    Considering the course of a pathogen's evolution, there appears to be interplay between secretion systems, providing unique, synergistic mechanisms to support a successful lifestyle for possibly pathogenesis, symbiosis and/or parasitosis.
    1. Cell Biology

    Super-resolution microscopy reveals majorly mono- and dimeric presenilin1/γ-secretase at the cell surface

    Abril Angélica Escamilla-Ayala et al.
    Super-resolution microscopy sets a new strategy to comprehend the membrane organization of γ-secretase at single complex resolution identifying nanodomain associations and its diffusion in situ in the living membrane.
    1. Cell Biology
    2. Developmental Biology

    Cholesterol accessibility at the ciliary membrane controls hedgehog signaling

    Maia Kinnebrew et al.
    The patched hedgehog receptor inhibits the transmembrane transducer smoothened by reducing the accessibility of cholesterol locally at the membrane of the primary cilium.
    1. Cell Biology

    Misfolded GPI-anchored proteins are escorted through the secretory pathway by ER-derived factors

    Eszter Zavodszky, Ramanujan S Hegde
    ER-resident chaperones and cargo receptors make excursions to the cell surface and endocytic compartments when they accompany misfolded clients to lysosomes for degradation.
    1. Biochemistry and Chemical Biology

    GPIHBP1 expression in gliomas promotes utilization of lipoprotein-derived nutrients

    Xuchen Hu et al.
    The expression of the lipoprotein lipase (LPL) transporter GPIHBP1 in glioma capillaries promotes the LPL-mediated processing of triglyceride-rich lipoproteins, thereby providing lipid nutrients for glioma cells.
    1. Cell Biology

    Mitochondrial biogenesis is transcriptionally repressed in lysosomal lipid storage diseases

    King Faisal Yambire et al.
    Transcription factors KLF2 and ETV1 repress the transcriptional program of mitochondrial biogenesis, resulting in impaired mitochondrial function in lysosomal storage diseases.

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