164 results found
    1. Cell Biology
    2. Genetics and Genomics

    The ribosomal P-stalk couples amino acid starvation to GCN2 activation in mammalian cells

    Heather P Harding et al.
    Genetic lesions that compromise the ribosome P-stalk implicate direct signalling from the ribosome to the translation initiation factor eIF2 kinase GCN2 in the cellular response to amino acid starvation.
    1. Chromosomes and Gene Expression

    Ssd1 and Gcn2 suppress global translation efficiency in replicatively aged yeast while their activation extends lifespan

    Zheng Hu et al.
    Activation of the stress response pathway in young cells extends replicative lifespan, not by reducing global protein synthesis per se, but by Gcn4-mediated autophagy induction.
    1. Neuroscience

    HCN2 channels in the ventral tegmental area regulate behavioral responses to chronic stress

    Peng Zhong et al.
    HCN2 channels in the ventral tegmental area play an important role in the pathophysiology of chronic mild stress-induced behavioral deficits.
    1. Developmental Biology

    A widely employed germ cell marker is an ancient disordered protein with reproductive functions in diverse eukaryotes

    Michelle A Carmell et al.
    GCNA proteins comprise a previously unnoticed family of proteins that has been enriched in cells carrying a heritable genome since the invention of sexual reproduction in eukaryotes, and has had reproductive function for at least 600 million years.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    Activation of GCN2 kinase by ribosome stalling links translation elongation with translation initiation

    Ryuta Ishimura et al.
    Activation of the integrated stress response by stalled translation elongation complexes attenuates neurodegeneration, and demonstrates a protective link between a decrease in the rate of translation initiation and defects in translation elongation.
    1. Cancer Biology
    2. Cell Biology

    TCF7L1 promotes skin tumorigenesis independently of β-catenin through induction of LCN2

    Amy T Ku et al.
    Overexpression of TCF7L1 overrides oncogenic Ras-induced senescence, induces cell migration, and promotes growth of skin squamous cell carcinoma independently of its interaction with β-catenin.
    1. Genetics and Genomics
    2. Human Biology and Medicine

    Distinct mitochondrial defects trigger the integrated stress response depending on the metabolic state of the cell

    Eran Mick et al.
    Mitochondrial electron transport chain dysfunction triggers the integrated stress response due to an asparagine deficiency downstream of impaired NADH oxidation in proliferating myoblasts, but not in differentiated myotubes.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    PGAM5 promotes lasting FoxO activation after developmental mitochondrial stress and extends lifespan in Drosophila

    Martin Borch Jensen et al.
    A signaling pathway involving PGAM5, ASK1 and JNK induces persistent FoxO activation, chaperone expression and lifespan extension following developmental mitochondrial stress, which can be blocked by mTOR signaling through GCN-2.
  1. Fabry Disease: Ion channels and neuropathic pain

    Madeleine C Klein, Anne Louise Oaklander
    Pain behaviors in a Fabry mouse model are associated with the accumulation of a fat molecule that disrupts sodium ion channels in small fiber neurons.
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    1. Cell Biology
    2. Neuroscience

    Cell Biology: Less translational control, more memory

    Graham D Pavitt
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