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

    Lysosomal membrane glycoproteins bind cholesterol and contribute to lysosomal cholesterol export

    Jian Li, Suzanne R Pfeffer
    LAMP proteins, the major glycoproteins of the lysosome membrane, bind cholesterol directly and specifically, and interact with NPC1 and NPC2 proteins as part of the lysosomal cholesterol export process.
    1. Cell Biology
    2. Human Biology and Medicine

    Defective STIM-mediated store operated Ca2+ entry in hepatocytes leads to metabolic dysfunction in obesity

    Ana Paula Arruda et al.
    Store operated calcium entry is defective in hepatocytes of obese mice, and restoring this process is sufficient to improve glucose metabolism.
    1. Neuroscience

    Doc2B acts as a calcium sensor for vesicle priming requiring synaptotagmin-1, Munc13-2 and SNAREs

    Sébastien Houy et al.
    Doc2B functions in two distinct vesicle priming steps; membrane localization occludes upstream Ca2+-dependent priming, whereas Ca2+-binding and interaction with synaptotagmin-1, SNAREs, and Munc13-2 are involved in downstream priming, which makes vesicles readily releasable.
    1. Structural Biology and Molecular Biophysics

    Structure of the human volume regulated anion channel

    Jennifer M Kefauver et al.
    The homomeric structure of human SWELL1 (LRRC8A) provides insights into properties of a novel chloride channel family.
    1. Cell Biology

    Identification and dynamics of the human ZDHHC16-ZDHHC6 palmitoylation cascade

    Laurence Abrami et al.
    Cycles of palmitoylation-depalmitoylation by an upstream palmitoyltransferase allow precise tuning of DHHC6 activity, which in turn regulates the abundance and function of key ER proteins involved in protein folding, degradation, ER architecture and calcium homeostasis.
    1. Structural Biology and Molecular Biophysics

    Cystic fibrosis drug ivacaftor stimulates CFTR channels at picomolar concentrations

    László Csanády, Beáta Töröcsik
    Aqueous solubility of cystic fibrosis drug ivacaftor is ~200-fold lower, whereas the potency of its stimulatory effect on the CFTR channel is >100-fold higher, than reported, and is fully reversible.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A molecular tweezer antagonizes seminal amyloids and HIV infection

    Edina Lump et al.
    CLR01 is a small molecule that could be an effective topical microbicide to eliminate HIV (and other enveloped viruses), and to antagonize host-encoded amyloid fibrils that promote HIV infection.
    1. Biochemistry and Chemical Biology

    Total biosynthesis of the cyclic AMP booster forskolin from Coleus forskohlii

    Irini Pateraki et al.
    The entire biosynthetic pathway for the diterpenoid forskolin in Coleus forskohlii has been reconstituted in yeast.
    1. Cell Biology

    Paradoxical resistance of multiple myeloma to proteasome inhibitors by decreased levels of 19S proteasomal subunits

    Diego Acosta-Alvear et al.
    The nodes of the cytosolic proteostasis network can control sensitivity to proteasome inhibitors and decreased levels of the 19S proteasomal regulator can lead to increased resistance to inhibitors.

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