142 results found
    1. Cell Biology
    2. Physics of Living Systems

    Metabolic constraints drive self-organization of specialized cell groups

    Sriram Varahan et al.
    In a developing yeast colony, cells go from homogeneous states to spatially organized, specialized metabolic states, and the new metabolic states depend on resources produced by the original state.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Proteasome storage granules protect proteasomes from autophagic degradation upon carbon starvation

    Richard S Marshall, Richard D Vierstra
    Proteasomes are protected from autophagic elimination upon carbon starvation by sequestration into cytoplasmic storage granules, which aid cell fitness by providing a cache of proteasomes that can be rapidly remobilized when carbon availability improves.
    1. Cell Biology
    2. Computational and Systems Biology

    Principles of cellular resource allocation revealed by condition-dependent proteome profiling

    Eyal Metzl-Raz et al.
    Steadily growing cells prepare for conditions that demand increased translation by producing excess ribosomes, at the expense of lower steady-state growth rate.
    1. Cell Biology

    The step-wise pathway of septin hetero-octamer assembly in budding yeast

    Andrew Weems, Michael McMurray
    In budding yeast cells, slow monomeric septin GTPase activity and the cytosolic GTP:GDP ratio dictate the relative incorporation of alternative subunits during septin hetero-oligomer assembly, which proceeds by discrete, ordered steps dependent on allostery between interaction interfaces.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Cell-cycle quiescence maintains Caenorhabditis elegans germline stem cells independent of GLP-1/Notch

    Hannah S Seidel, Judith Kimble
    C. elegans germline stem cells become quiescent under starved conditions, and this quiescence maintains the stem cell state even in the absence of GLP-1/Notch signaling, which is otherwise essential for stem cell maintenance.
    1. Human Biology and Medicine
    2. Immunology and Inflammation

    Expansion of intestinal Prevotella copri correlates with enhanced susceptibility to arthritis

    Jose U Scher et al.
    The sequencing of microbial genomes reveals that the presence of a particular microbial species in the gut may increase the risk of the autoimmune disease rheumatoid arthritis.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Mycobacterium tuberculosis induces decelerated bioenergetic metabolism in human macrophages

    Bridgette M Cumming et al.
    Quantifiable bioenergetic parameters, determined from extracellular flux analyses, are distinct between macrophages infected with Mycobacteriumtuberculosis or vaccine strain M. bovis BCG, enabling assessment of future vaccine and drug efficacy.
    1. Biochemistry and Chemical Biology
    2. Ecology

    De novo synthesis of a sunscreen compound in vertebrates

    Andrew R Osborn et al.
    Many vertebrates are able to synthesize a sunscreen compound de novo and the pathway involved can be used for heterologous production of the compound in yeast.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Wss1 metalloprotease partners with Cdc48/Doa1 in processing genotoxic SUMO conjugates

    Maxim Y Balakirev et al.
    Wss1 is both a metalloprotease and SUMO ligase found in association with Cdc48 and Doa1 and accumulating in the vacuole upon DNA damage.
    1. Physics of Living Systems

    Spatial control of neuronal metabolism through glucose-mediated mitochondrial transport regulation

    Anamika Agrawal et al.
    A quantitative analysis of glucose-dependent transport regulation indicates that mitochondrial accumulation in regions of high nutrient availability can enhance metabolism in neuronal axons under physiologically relevant conditions.

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