28 results found
    1. Evolutionary Biology
    2. Plant Biology

    Independent evolution of ancestral and novel defenses in a genus of toxic plants (Erysimum, Brassicaceae)

    Tobias Züst et al.
    A gain-of-function in a new chemical defense resulted in no trade-offs and and independent evolution between novel and ancestral defenses, suggesting low redundancy among different defensive chemicals.
    1. Plant Biology

    The biogenesis of CLEL peptides involves several processing events in consecutive compartments of the secretory pathway

    Nils Stührwohldt et al.
    Step-wise processing of plant peptide hormone precursors by subtilisin-like proteinases in consecutive compartments of the secretory pathway is required for formation and secretion of the bioactive peptides.
    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
    2. Microbiology and Infectious Disease

    A widely distributed metalloenzyme class enables gut microbial metabolism of host- and diet-derived catechols

    Vayu Maini Rekdal et al.
    A previously unrecognized group of metalloenzymes enables human gut microbes to metabolize dietary molecules and neurotransmitters and likely mediates interactions and metabolism among environmental microorganisms.
    1. Cell Biology
    2. Developmental Biology

    YAP1 and TAZ negatively control bone angiogenesis by limiting hypoxia-inducible factor signaling in endothelial cells

    Kishor K Sivaraj et al.
    The interplay between the transcriptional co-regulators YAP1/TAZ and the hypoxia-controlled transcription factor HIF1α differentially regulates endothelial cell behavior in the hypoxic environment of bone compared to other organs.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    MeCP2 nuclear dynamics in live neurons results from low and high affinity chromatin interactions

    Francesco M Piccolo et al.
    Single molecular imaging of MeCP2 at high spatial/temporal resolution identifies distinct structural domains contributing to its dynamic behaviors and chromatin interactions in live neurons.
    1. Cell Biology
    2. Human Biology and Medicine

    Impaired lysosomal acidification triggers iron deficiency and inflammation in vivo

    King Faisal Yambire et al.
    Impaired lysosomal acidification results in retention of iron inside lysosomes, triggering functional iron deficiency, dysfunctional mitochondria (especially mtDNA loss), and inflammation in vivo in a mouse model of lysosomal disease.
    1. Neuroscience

    MRGPRX4 is a bile acid receptor for human cholestatic itch

    Huasheng Yu et al.
    Bile acid and it's receptor MRGPRX4, but not TGR5, is one of the ligand-receptor pairs for chronic itch in patients with liver diseases.
    1. Biochemistry and Chemical Biology

    Oxygen Sensors: When is a target not a target?

    David C Bersten, Daniel J Peet
    Cells rely on prolyl hydroxylase enzymes to sense low levels of oxygen, but they might act on fewer targets than previously thought.
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    1. Biochemistry and Chemical Biology

    Lack of activity of recombinant HIF prolyl hydroxylases (PHDs) on reported non-HIF substrates

    Matthew E Cockman et al.
    Assays using recombinant HIF prolyl hydroxylases did not support hydroxylation of more than 20 reported non-HIF substrates under conditions where robust HIF hydroxylation was observed.

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