148 results found
    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 et al.
    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. Biochemistry and Chemical Biology

    Membrane immersion allows rhomboid proteases to achieve specificity by reading transmembrane segment dynamics

    Syed M Moin, Sinisa Urban
    Intramembrane proteases identify target proteins in a different way from other proteases.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Roles of the membrane-reentrant β-hairpin-like loop of RseP protease in selective substrate cleavage

    Koichiro Akiyama et al.
    Mutational analysis and biochemical experiments suggest that the conserved β-hairpin-like membrane-reentrant loop of RseP - an S2P family intramembrane cleaving protease - helps to discriminate substrates by directly interacting with their transmembrane segments.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The architecture of EMC reveals a path for membrane protein insertion

    John P O'Donnell et al.
    Structural and biochemical analysis of an abundant and conserved protein complex called EMC shows how it is likely to insert nascent membrane proteins into the endoplasmic reticulum membrane.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Translocation of interleukin-1β into a vesicle intermediate in autophagy-mediated secretion

    Min Zhang et al.
    Reconstitution of interleukin-1β secretion in non-macrophage cells implicates how this pro-inflammatory cytokine enters into the unconventional pathway of secretion through autophagy.
    1. Cell Biology
    2. Plant Biology

    Multi-functional roles for the polypeptide transport associated domains of Toc75 in chloroplast protein import

    Yamuna D Paila et al.
    The conserved polypeptide transport associated (POTRA) domains of the protein import channel, Toc75, are essential for protein import into chloroplasts.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    TANGO1 membrane helices create a lipid diffusion barrier at curved membranes

    Ishier Raote et al.
    TANGO1 creates a barrier to control lipid and protein flux across fused secretory compartments.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The amyloid-beta forming tripeptide cleavage mechanism of γ-secretase

    David M Bolduc et al.
    The protease γ-secretase generates amyloid-beta peptides using a mechanism that is driven by the stabilization of an enzyme-substrate scisson complex.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Tim29 is a novel subunit of the human TIM22 translocase and is involved in complex assembly and stability

    Yilin Kang et al.
    A novel and metazoan-specific protein, Tim29, is identified as a subunit of the human TIM22 complex and shown to function in the assembly of hTim22 and facilitate contacts with the TOM complex.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    In situ structural analysis of the Yersinia enterocolitica injectisome

    Mikhail Kudryashev et al.
    The basal body of the type-III secretion system of Yersinia enterocolitica within bacterial membranes shows elasticity and is longer than related isolated systems.

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