348 results found
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Host-selected mutations converging on a global regulator drive an adaptive leap towards symbiosis in bacteria

    M Sabrina Pankey, Randi L Foxall ... Cheryl A Whistler
    Selective forces imposed by the squid animal host drive rapid adaptation of non-native Vibrio fischeri bacteria through convergent mutations of large effect, unmasking preexisting coordinated regulation of symbiosis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Disruption of the TCA cycle reveals an ATF4-dependent integration of redox and amino acid metabolism

    Dylan Gerard Ryan, Ming Yang ... Christian Frezza
    Multi-omic analyses reveal a connection between the integrated stress response and the regulation of redox and amino acid metabolism when the TCA cycle is impaired.
    1. Microbiology and Infectious Disease

    Antibiotic-induced changes in the microbiota disrupt redox dynamics in the gut

    Aspen T Reese, Eugenia H Cho ... Lawrence A David
    Disturbing the microbiota with antibiotics alters gut redox state via changes in electron acceptor availability, setting the stage for post-antibiotic succession.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Temporal profiling of redox-dependent heterogeneity in single cells

    Meytal Radzinski, Rosi Fassler ... Dana Reichmann
    Analysis of aging yeast cells using the in-vivo roGFP2-based probe reveals redox-dependent heterogeneity, reflected in a bi-modal distribution of the oxidation status, differential growth and replication, as well as distinct proteomic and transcriptomic profiles.
    1. Biochemistry and Chemical Biology

    Mia40 is a trans-site receptor that drives protein import into the mitochondrial intermembrane space by hydrophobic substrate binding

    Valentina Peleh, Emmanuelle Cordat, Johannes M Herrmann
    The import of proteins into the intermembrane space of mitochondria is driven by binding to the trans-site receptor Mia40 and not by the oxidation of cysteine residues.
    1. Stem Cells and Regenerative Medicine

    Wnt signaling-mediated redox regulation maintains the germ line stem cell differentiation niche

    Su Wang, Yuan Gao ... Ting Xie
    Wnt signaling regulates cellular redox in the germline stem cell differentiation niche via a novel regulatory mechanism, thereby controlling germ line stem cell progeny differentiation.
    1. Cell Biology

    OXPHOS deficiencies affect peroxisome proliferation by downregulating genes controlled by the SNF1 signaling pathway

    Jean-Claude Farre, Krypton Carolino ... Suresh Subramani
    The emerging importance of interorganellar communication is demonstrated by documentation of a feedback loop wherein peroxisome-generated metabolites affect mitochondrial ATP production and peroxisomal functions via signaling pathways requiring transmission of signals also through the cytosol and the nucleus.
    1. Neuroscience

    Metabolomic profiling reveals a differential role for hippocampal glutathione reductase in infantile memory formation

    Benjamin Bessières, Emmanuel Cruz, Cristina M Alberini
    Hippocampal metabolomic analyses following episodic learning at different ages revealed a critical role for neuronal glutathione reductase activity in long-term infantile memory formation.
    1. Cancer Biology
    2. Medicine

    Insights into metabolic heterogeneity of colorectal cancer gained from fluorescence lifetime imaging

    Anastasia D Komarova, Snezhana D Sinyushkina ... Marina V Shirmanova
    The level of heterogeneity of cellular energy metabolism increases with model complexity and is the highest in patients' tumors, which can be observed and quantified using FLIM of NAD(P)H.
    1. Microbiology and Infectious Disease

    Efficacy of β-lactam/β-lactamase inhibitor combination is linked to WhiB4-mediated changes in redox physiology of Mycobacterium tuberculosis

    Saurabh Mishra, Prashant Shukla ... Amit Singh
    Intrinsic tolerance of Mycobacterium tuberculosis toward the world's most successful antibacterials, β-lactams, is dependent on cytoplasmic redox potential and an intracellular redox-sensor WhiB4.

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