107 results found
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Reactive oxygen species oxidize STING and suppress interferon production

    Lili Tao et al.
    Redox modification of STING represents a novel target for interferon regulation and control of herpesvirus replication.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Peroxiredoxin promotes longevity and H2O2-resistance in yeast through redox-modulation of protein kinase A

    Friederike Roger et al.
    The major cytosolic yeast peroxiredoxin Tsa1 controls aging and H2O2-resistance by inhibiting protein kinase A through a conserved cysteine in the catalytic subunit activation loop and not by scavenging H2O2.
    1. Medicine

    Late-life restoration of mitochondrial function reverses cardiac dysfunction in old mice

    Ying Ann Chiao et al.
    Mitochondrial-targeted SS-31 peptide ameliorates mitochondrial dysfunction and rescues pre-existing cardiac dysfunction in old mice, supporting the translational potential of mitochondrial protective interventions to treat age-related diseases.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Local frustration determines loop opening during the catalytic cycle of an oxidoreductase

    Lukas S Stelzl et al.
    The cysteine pair oxidation state in nDsbD acts as a ‘switch’ controlling the presence or absence of frustration in the active-site and determining the dynamic behavior of the cap loop.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Inter-domain dynamics drive cholesterol transport by NPC1 and NPC1L1 proteins

    Piyali Saha et al.
    Molecular analysis of cholesterol transport by NPC1 and NPC1L1 proteins reveals that cholesterol likely moves through these transporters, and ezetimibe blocks NPC1L1 by binding at the interface between multiple domains.
    1. Microbiology and Infectious Disease

    An atypical DYRK kinase connects quorum-sensing with posttranscriptional gene regulation in Trypanosoma brucei

    Mathieu Cayla et al.
    A trypanosome DYRK kinase that exhibits fundamental differences to conventional DYRK family regulation links parasite quorum sensing, signal transduction and developmental gene expression.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular basis for catabolism of the abundant metabolite trans-4-hydroxy-L-proline by a microbial glycyl radical enzyme

    Lindsey RF Backman et al.
    The common post-translational modification trans-4-hydroxy-L-proline is reversed by gut microbes with the help of hydroxyproline dehydratase (HypD), an enzyme that performs a radical chemical mechanism.
    1. Biochemistry and Chemical Biology

    JMJD6 cleaves MePCE to release positive transcription elongation factor b (P-TEFb) in higher eukaryotes

    Schuyler Lee et al.
    JMJD6 helps BRD4 to recruit CDK9 to RNA Polymerase II by disrupting 7SK snRNP complex.
    1. Immunology and Inflammation

    Thioredoxin-1 distinctly promotes NF-κB target DNA binding and NLRP3 inflammasome activation independently of Txnip

    Jonathan Muri et al.
    The thioredoxin-1 (Trx1) system promotes inflammation by positively regulating both NLRP3 inflammasome responses, by detoxifying excessive ROS independently of Txnip and NF-κB binding to target DNA.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    A tryparedoxin-coupled biosensor reveals a mitochondrial trypanothione metabolism in trypanosomes

    Samantha Ebersoll et al.
    African trypanosomes have a trypanothione-based mitochondrial thiol redox metabolism.

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