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

    Complementary biosensors reveal different G-protein signaling modes triggered by GPCRs and non-receptor activators

    Mikel Garcia-Marcos
    Heterotrimeric G-proteins can be switched on not only by G-protein-coupled receptors but also by cytoplasmic proteins, resulting in different signaling mechanisms in cells depending on the specific type of activator.
    1. Cell Biology
    2. Neuroscience

    Pregnancy-associated plasma protein-aa regulates endoplasmic reticulum–mitochondria associations

    Mroj Alassaf, Mary C Halloran
    An extracellular modulator of IGF1 signaling, Pappaa, regulates endoplasmic reticulum–mitochondria connections, which are critical for metabolic homeostasis and hair cell survival.
    1. Chromosomes and Gene Expression

    Promoter-specific changes in initiation, elongation, and homeostasis of histone H3 acetylation during CBP/p300 inhibition

    Emily Hsu et al.
    CBP/p300 acetylation of histone H3 at promoters and enhancers stimulates transcriptional elongation through recruitment of the super-elongation complex and BRD4.
    1. Neuroscience

    Enhanced insulin signalling ameliorates C9orf72 hexanucleotide repeat expansion toxicity in Drosophila

    Magda L Atilano et al.
    Modulation of insulin signalling could be an effective therapeutic approach against hexanucleotide repeat expansion related to c9ALS/FTD neurodegenerative diseases.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Effective dynamics of nucleosome configurations at the yeast PHO5 promoter

    Michael Roland Wolff et al.
    The integration of multi-nucleosome configuration data with histone turnover and new chromatin accessibility data by systematically investigated 'regulated on-off-slide' models reveals promoter state transitions regulated by just one assembly process.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    A single-chain and fast-responding light-inducible Cre recombinase as a novel optogenetic switch

    Hélène Duplus-Bottin et al.
    A single protein catalyzes site-specific DNA recombination upon blue-light illumination.
    1. Cell Biology

    A nuclear-based quality control pathway for non-imported mitochondrial proteins

    Viplendra PS Shakya et al.
    During times of mitochondrial impairment, non-imported mitochondrial precursor proteins are targeted to the nucleus for proteasome-dependent degradation.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Archaeal chromatin ‘slinkies’ are inherently dynamic complexes with deflected DNA wrapping pathways

    Samuel Bowerman et al.
    Archaeal histones compact DNA into nucleosome-like particles of varying sizes that contort sporadically and reorient DNA wrapping.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    eIF2B conformation and assembly state regulate the integrated stress response

    Michael Schoof et al.
    eIF2-P activates the integrated stress response by inducing a conformational change in eIF2B that decreases substrate (eIF2) binding and reduces eIF2B's catalytic activity.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Dynamic interactions between the RNA chaperone Hfq, small regulatory RNAs, and mRNAs in live bacterial cells

    Seongjin Park et al.
    RNA chaperone Hfq dynamically binds various pools of cellular RNAs to execute different regulatory functions.

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