1,501 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Quantitative H2S-mediated protein sulfhydration reveals metabolic reprogramming during the integrated stress response

    Xing-Huang Gao et al.
    ATF4, the master regulator of transcription during the Integrated Stress Response (ISR), causes global changes in cysteine sulfhydration of proteins and this event causes cellular metabolic reprogramming.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Actin dynamics tune the integrated stress response by regulating eukaryotic initiation factor 2α dephosphorylation

    Joseph E Chambers et al.
    Monomeric actin forms a crucial component of the eIF2α holophosphatase linking the integrated stress response to actin polymeric status.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Pharmacological dimerization and activation of the exchange factor eIF2B antagonizes the integrated stress response

    Carmela Sidrauski et al.
    A drug-like molecule called ISRIB, which activates the translation initiation factor eIF2B, antagonizes stress responses as diverse as protein misfolding and nutrient deprivation, and restores protein synthesis, enhancing memory.
    1. Cell Biology
    2. Neuroscience

    The small molecule ISRIB reverses the effects of eIF2α phosphorylation on translation and stress granule assembly

    Carmela Sidrauski et al.
    Building on previous work which showed that the small molecule ISRIB potently blocks the integrated stress response (Sidrauski et al., 2013), we report on ISRIB's remarkable specificity and fast action in vivo, underscoring its proposed direct effect on translation.
    1. Cell Biology
    2. Neuroscience

    Cell Biology: Less translational control, more memory

    Graham D Pavitt
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    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The small molecule ISRIB rescues the stability and activity of Vanishing White Matter Disease eIF2B mutant complexes

    Yao Liang Wong et al.
    Vanishing White Matter Disease mutations compromise the function of the essential translation initiation factor eIF2B by destabilizing the holoenzyme, and the small molecule ISRIB reverses their pathogenic effect by promoting complex formation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Translational Control: An emergency brake for protein synthesis

    Vladislava Hronová, Leoš Shivaya Valášek
    The integrated stress response is able to rapidly shut down the synthesis of proteins in eukaryotic cells.
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    1. Biochemistry and Chemical Biology

    Translation of 5′ leaders is pervasive in genes resistant to eIF2 repression

    Dmitry E Andreev et al.
    Most of the mRNAs whose translation is resistant to the stress-induced repression of protein synthesis contain upstream open reading frames that are efficiently translated under normal conditions.
    1. Cell Biology
    2. Neuroscience

    Pharmacological brake-release of mRNA translation enhances cognitive memory

    Carmela Sidrauski et al.
    A compound that prevents stressors such as UV light and viral infection from downregulating protein synthesis inside cells improves memory performance in mice.
    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.

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