23 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The vacuolar-ATPase complex and assembly factors, TMEM199 and CCDC115, control HIF1α prolyl hydroxylation by regulating cellular iron levels

    Anna L Miles et al.
    An unbiased genome-wide human forward genetic screen identifies the vacuolar ATPase complex and assembly factors as regulators of HIF stability through their actions on intracellular iron metabolism.
    1. Cell Biology

    Prolyl dihydroxylation of unassembled uS12/Rps23 regulates fungal hypoxic adaptation

    Sara J Clasen et al.
    The protein uS12/Rps23 functions extra-ribosomally to control oxygen homeostasis in fission yeast.
    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.
    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. Neuroscience

    PARIS, an optogenetic method for functionally mapping gap junctions

    Ling Wu et al.
    As the first fully genetically encoded method, PARIS allows cell-specific, long-term, repeated measurements of gap junctional coupling with high spatiotemporal resolution, facilitating its study in both health and disease.
    1. Developmental Biology

    An oxygen-insensitive Hif-3α isoform inhibits Wnt signaling by destabilizing the nuclear β-catenin complex

    Peng Zhang et al.
    Hif/Hif-3α has two distinct roles in cells: activating HRE-dependent gene expression and binding to β-catenin to destabilize the nuclear β-catenin complex.
    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. Cell Biology

    The metal transporter ZIP13 supplies iron into the secretory pathway in Drosophila melanogaster

    Guiran Xiao et al.
    Drosophila ZIP13 (Slc39a13), a presumed zinc importer, is responsible for iron delivery to the secretory pathway.
    1. Cell Biology
    2. Plant Biology

    FRET-based reporters for the direct visualization of abscisic acid concentration changes and distribution in Arabidopsis

    Rainer Waadt et al.
    Fluorescent sensors can track the movement and distribution of the plant hormone abscisic acid in roots and leaves in Arabidopsis.
    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.

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