421 results found
    1. Computational and Systems Biology
    2. Physics of Living Systems

    First-principles model of optimal translation factors stoichiometry

    Jean-Benoît Lalanne, Gene-Wei Li
    A parsimonious biophysical model correctly predicts the conserved expression stoichiometry of core bacterial mRNA translation factors, providing intuitive and quantitative design principles for in vivo pathway construction.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The cooperative binding of TDP-43 to GU-rich RNA repeats antagonizes TDP-43 aggregation

    Juan Carlos Rengifo-Gonzalez et al.
    The RNA-mediated higher order assembly of TDP-43, a protein associated with neurodegenerative diseases, preserves its solubility by reducing the risk of multivalent interactions between low complexity domains.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Gut bacterial aggregates as living gels

    Brandon H Schlomann, Raghuveer Parthasarathy
    A theory of gut bacterial aggregation produces a cluster size distribution that matches that of several strains observed in zebrafish, suggesting principles generally applicable to the vertebrate gut.
    1. Computational and Systems Biology
    2. Neuroscience

    Optimal plasticity for memory maintenance during ongoing synaptic change

    Dhruva V Raman, Timothy O'Leary
    Simple mathematical reasoning shows that the large amount of synaptic turnover seen in many parts of the brain is in fact optimal for memory retention.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Enhanced Cas12a multi-gene regulation using a CRISPR array separator

    Jens P Magnusson et al.
    Cas12a CRISPR arrays are sensitive to the GC content of their spacers, but AT-rich separator sequences successfully remove this disruptive effect and enable enhanced multiplexed gene targeting and activation.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    Mechanically transduced immunosorbent assay to measure protein-protein interactions

    Christopher J Petell et al.
    METRIS is a method that reports a mechanical readout of protein-protein interactions and due to its unique properties, it will allow many protein-protein interactions to be quantitatively measured easily that are currently laborious to measure with conventional methods.
    1. Developmental Biology
    2. Physics of Living Systems

    Cost-precision trade-off relation determines the optimal morphogen gradient for accurate biological pattern formation

    Yonghyun Song, Changbong Hyeon
    The morphogen profiles that pattern the fruit fly attain desired levels of spatial precision in a cost-effective manner.
    1. Medicine

    Aorta smooth muscle-on-a-chip reveals impaired mitochondrial dynamics as a therapeutic target for aortic aneurysm in bicuspid aortic valve disease

    Mieradilijiang Abudupataer et al.
    An aorta smooth muscle-on-a-chip model indicated that NOTCH1 insufficiency in HAoSMCs induced phenotypic switching from a contractile to a synthetic phenotype accompanied by an impairment of mitochondrial fusion, implying its potential role as a therapeutic target for BAV-TAA.
    1. Stem Cells and Regenerative Medicine

    Mesenchymal stromal cell aging impairs the self-organizing capacity of lung alveolar epithelial stem cells

    Diptiman Chanda et al.
    Lung stem cell niche aging is associated with altered bioenergetics, metabolic dysfunction, and senescence of mesenchymal stromal cells that restricts 3D organoid, or alveolosphere formation, potentially accounting for reduced regenerative capacity with aging.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Bipartite binding and partial inhibition links DEPTOR and mTOR in a mutually antagonistic embrace

    Maren Heimhalt et al.
    The inhibitory protein DEPTOR make two widely separated interactions with mTOR that are both necessary for its unique partial mTOR inhibition, and DEPTOR is a more potent inhibitor of mutation- or RHEB-activated mTORC1 than basal mTORC1.

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