114 results found
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Neutrophil-generated HOCl leads to non-specific thiol oxidation in phagocytized bacteria

    Adriana Degrossoli et al.
    The use of genetically encoded redox sensors in phagocytized bacteria reveals that, among the toxic cocktail of oxidants released into the neutrophil's phagolysosome, HOCl is the main component responsible for the oxidative modification of bacterial protein thiols.
    1. Plant Biology

    The chloroplast 2-cysteine peroxiredoxin functions as thioredoxin oxidase in redox regulation of chloroplast metabolism

    Mohamad-Javad Vaseghi et al.
    The chloroplast 2-cysteine peroxiredoxin is central player and missing link in the chloroplast thiol-disulfide redox regulatory network, and participates in oxidative inactivation of reductively activated enzymes in photosynthesis.
    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.
    1. Cell Biology

    Time line of redox events in aging postmitotic cells

    Nicolas Brandes et al.
    A sudden fall in the levels of the coenzyme NADPH within cells could have a central role in the process of aging.
    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. Cell Biology

    PDIA1/P4HB is required for efficient proinsulin maturation and ß cell health in response to diet induced obesity

    Insook Jang et al.
    The major protein disulfide isomerase family member, PDIA1, is essential in beta cells of mice fed a high-fat diet to maintain glucose homeostasis, proinsulin maturation and organelle integrity.
    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. Plant Biology

    Regulation of photosynthetic electron flow on dark to light transition by ferredoxin:NADP(H) oxidoreductase interactions

    Manuela Kramer et al.
    The regulatory switch from protection to assimilation, which plants use to exploit natural, fluctuating light, involves movement of the enzyme ferredoxin:NADP(H) oxidoreductase between chloroplast membrane complexes.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    An unexpected role for the yeast nucleotide exchange factor Sil1 as a reductant acting on the molecular chaperone BiP

    Kevin D Siegenthaler et al.
    Building on previous work (Wang et al., 2014), it is shown that the nucleotide exchange factor of the chaperone BiP (Sil1) unexpectedly facilitates the reduction of oxidized BiP.
    1. Structural Biology and Molecular Biophysics

    Revealing an outward-facing open conformational state in a CLC Cl/H+ exchange transporter

    Chandra M Khantwal et al.
    The characterization of a previously unidentified “outward-facing open” conformational state provides a new framework for understanding the CLC transport mechanism.

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