351 results found
    1. Microbiology and Infectious Disease

    Breaking antimicrobial resistance by disrupting extracytoplasmic protein folding

    R Christopher D Furniss, Nikol Kaderabkova ... Despoina AI Mavridou
    Disruption of disulfide bond formation sensitizes resistant Gram-negative bacteria expressing β-lactamases and mobile colistin resistance enzymes to currently available antibiotics.
    1. Cell Biology

    PDIA1/P4HB is required for efficient proinsulin maturation and ß cell health in response to diet induced obesity

    Insook Jang, Anita Pottekat ... Randal J Kaufman
    The major protein disulfide isomerase family member, PDIA1, is essential in beta cells of mice fed a high-fat diet to maintain glucose homeostasis, proinsulin maturation and organelle integrity.
    1. Biochemistry and Chemical Biology

    Mia40 is a trans-site receptor that drives protein import into the mitochondrial intermembrane space by hydrophobic substrate binding

    Valentina Peleh, Emmanuelle Cordat, Johannes M Herrmann
    The import of proteins into the intermembrane space of mitochondria is driven by binding to the trans-site receptor Mia40 and not by the oxidation of cysteine residues.
    1. Structural Biology and Molecular Biophysics

    Single molecule compression reveals intra-protein forces drive cytotoxin pore formation

    Daniel M Czajkowsky, Jielin Sun ... Zhifeng Shao
    Compressive force spectroscopy of single molecules reveals that intra-protein forces underlie the long-distance coordination of structural changes within a cytotoxin during pore formation.
    1. Biochemistry and Chemical Biology

    Mechano-redox control of integrin de-adhesion

    Freda Passam, Joyce Chiu ... Philip J Hogg
    Ligand binding, force and chemistry combine to control the function of a cell surface receptor.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Homo-oligomerization of the human adenosine A2A receptor is driven by the intrinsically disordered C-terminus

    Khanh Dinh Quoc Nguyen, Michael Vigers ... Songi Han
    The C-terminus of A2A receptor drives oligomer formation via an intricate network of disulfide bonds, hydrogen bonds, electrostatic interactions, and hydrophobic interactions, all of which are enhanced by depletion interactions.
    1. Cell Biology

    Antipsychotic olanzapine-induced misfolding of proinsulin in the endoplasmic reticulum accounts for atypical development of diabetes

    Satoshi Ninagawa, Seiichiro Tada ... Kazutoshi Mori
    The mechanism identified here that mediates olanzapine-induced b-cell dysfunction should be considered, along with weight gain, in mitigating adverse side effects when patients with schizophrenia are prescribed olanzapine.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    A fusion peptide in preS1 and the human protein disulfide isomerase ERp57 are involved in hepatitis B virus membrane fusion process

    Jimena Pérez-Vargas, Elin Teppa ... François-Loïc Cosset
    The mechanism triggering HBV membrane fusion involves ERp57, a cellular protein disulfide isomerase, and ultimately leads to the exposition of a fusion peptide that was identified in the pre-S1 determinant.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Structure and topology around the cleavage site regulate post-translational cleavage of the HIV-1 gp160 signal peptide

    Erik Lee Snapp, Nicholas McCaul ... Ineke Braakman
    Signal-peptide cleavage of HIV-1 envelope glycoprotein is delayed because of alpha-helical structure covering the cleavage site, effecting early cleavage alters the folding pathway and resulting in localized misfolding and reduced viral fitness.
    1. Biochemistry and Chemical Biology

    Disulfide bridge-dependent dimerization triggers FGF2 membrane translocation into the extracellular space

    Fabio Lolicato, Julia P Steringer ... Walter Nickel
    Disulfide-bridged fibroblast growth factor 2 (FGF2) dimerization at the inner plasma membrane leaflet produces the building block for higher FGF2 oligomers that drive FGF2 membrane translocation into the extracellular space.

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