4,724 results found
    1. Developmental Biology

    Hedgehog signaling via Gli2 prevents obesity induced by high-fat diet in adult mice

    Yu Shi, Fanxin Long
    Targeted activation of Hedgehog signalling via Gli2 facilitated the reduction of high-fat-diet-induced obesity and improvement of whole-body glucose tolerance and insulin sensitivity in adult mice.
    1. Physics of Living Systems
    2. Computational and Systems Biology

    Probing protein flexibility reveals a mechanism for selective promiscuity

    Nicolas A Pabon, Carlos J Camacho
    Conserved contacts on cognate ligands trigger an induced fit pathway that confers selective promiscuity to PD-1, a flexible regulatory protein and promising anticancer target.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Single-molecule FRET unveils induced-fit mechanism for substrate selectivity in flap endonuclease 1

    Fahad Rashid et al.
    Structure specific nucleases that act in DNA replication, repair and recombination actively mold their DNA while transforming their own structure to achieve precise cleavage of their cognate DNA and avoid the deleterious cleavage of noncognate DNA.
    1. Structural Biology and Molecular Biophysics

    Microtubule assembly governed by tubulin allosteric gain in flexibility and lattice induced fit

    Maxim Igaev, Helmut Grubmüller
    A new combined mechanism explains how GTP binding by tubulin is linked to its dynamics and energetics in solution and why GTP-induced flexibility, and not the tubulin conformation as such, drives microtubule assembly.
    1. Structural Biology and Molecular Biophysics

    Molecular Chaperones: Confirmation for conformational selection

    Yajun Jiang, Charalampos G Kalodimos
    NMR studies settle part of a long-standing debate about the mechanism used by the Hsp70 chaperone to recognize substrates.
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    1. Structural Biology and Molecular Biophysics

    Conserved conformational selection mechanism of Hsp70 chaperone-substrate interactions

    Ashok Sekhar et al.
    NMR-based flux measurements show that both bacterial and human Hsp70 chaperones interact with helical, as well as sheet substrates predominantly through a conformational selection mechanism.
    1. Stem Cells and Regenerative Medicine

    Loss of adult skeletal muscle stem cells drives age-related neuromuscular junction degeneration

    Wenxuan Liu et al.
    Building on previous work (Liu et al., 2015), it is shown that depletion or rescue of adult skeletal muscle stem cells is sufficient to induce or attenuate age-associated neuromuscular junction deterioration respectively.
    1. Cancer Biology
    2. Cell Biology

    Aurora kinase A localises to mitochondria to control organelle dynamics and energy production

    Giulia Bertolin et al.
    AurkA is imported into mitochondria at interphase, and it induces organelle elongation and enhances ATP production when over-expressed.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    JNK signaling triggers spermatogonial dedifferentiation during chronic stress to maintain the germline stem cell pool in the Drosophila testis

    Salvador C Herrera, Erika A Bach
    JNK pathway activity induces spermatogonial dedifferentiation under challenging conditions to maintain the germline stem cell pool and to endow it with potentially fitter cells that have increased proliferation.
    1. Neuroscience

    Preoptic leptin signaling modulates energy balance independent of body temperature regulation

    Sangho Yu et al.
    The preoptic area (POA) regulates distinct metabolic adaptations, via leptin-dependent (fasting-induced hypometabolism and high-fat-diet-induced hypermetabolism), or leptin-independent mechanisms (temperature induced metabolic changes) and thus significantly contributes to body weight homeostasis.

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