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

    Large protein organelles form a new iron sequestration system with high storage capacity

    Tobias W Giessen et al.
    An alternative iron storage system based on a 9.6 megadalton microbial protein compartment is able to sequester and store large amounts of iron.
    1. Cell Biology
    2. Computational and Systems Biology

    Global, quantitative and dynamic mapping of protein subcellular localization

    Daniel N Itzhak et al.
    A spatial proteomics method can capture physiological protein subcellular localization changes in response to a stimulus, resolving all major organelles.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Live-cell mapping of organelle-associated RNAs via proximity biotinylation combined with protein-RNA crosslinking

    Pornchai Kaewsapsak et al.
    Live-cell nanometer-resolution RNA labeling method enables transcriptome-wide mapping of endogenous RNAs in nuclear, cytosol, ER, and mitochondrial subcompartments.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Protein gradients on the nucleoid position the carbon-fixing organelles of cyanobacteria

    Joshua S MacCready et al.
    Carboxysomes, the carbon-fixation machinery of cyanobacteria, are equidistantly-positioned by dynamic gradients of the protein McdA on the nucleoid that emerge through interaction with a previously unidentified carboxysome factor, McdB.
    1. Plant Biology

    Proximity labeling of protein complexes and cell-type-specific organellar proteomes in Arabidopsis enabled by TurboID

    Andrea Mair et al.
    Proximity-labeling using engineered biotin ligases TurboID and miniTurbo enables detection of cell-type-specific and low abundance protein complexes and subcellular proteomes in Arabidopsis and other plants.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Ceapins block the unfolded protein response sensor ATF6α by inducing a neomorphic inter-organelle tether

    Sandra Elizabeth Torres et al.
    Ceapins specifically inhibit the unfolded protein sensor ATF6α by directly tethering the cytosolic domain of ATF6α to ABCD3 in cells and in vitro.
    1. Cell Biology
    2. Genetics and Genomics

    Protein Homeostasis: How chloroplasts protect themselves from unfolded proteins

    Felix Kessler, Paolo Longoni
    A genetic screen has identified the first signaling component of the unfolded protein response in chloroplasts.
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    1. Microbiology and Infectious Disease

    A protein secreted by the Salmonella type III secretion system controls needle filament assembly

    Junya Kato et al.
    A novel component of type III protein secretion systems involved in the assembly of the secretion machine is reported.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Mitochondria supply ATP to the ER through a mechanism antagonized by cytosolic Ca2+

    Jing Yong et al.
    ATP enters the endoplasmic reticulum (ER) lumen through an SLC35B1/AXER-dependentCaATiER mechanism, and ATP usage in the ER renders 'anti-Warburg' effect by increasing ATP regeneration from OxPhos while decreasing glycolysis.
    1. Cell Biology
    2. Genetics and Genomics

    The Mars1 kinase confers photoprotection through signaling in the chloroplast unfolded protein response

    Karina Perlaza et al.
    A genetic screen in a unicellular photosynthetic organism uncovers the first essential signaling component in the chloroplast unfolded protein response that relays information from the chloroplast to the nuclear compartment.

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