378 results found
    1. Chromosomes and Gene Expression

    Msn2/4 regulate expression of glycolytic enzymes and control transition from quiescence to growth

    Zheng Kuang et al.
    General stress response factors Msn2 and Msn4 activate glycolytic genes and promote acetyl-CoA accumulation to stimulate growth and proliferation of yeast cells under a nutrient-limiting condition, suggesting the unexpected interrelationship between carbohydrate metabolism and stress response.
    1. Cell Biology
    2. Human Biology and Medicine

    Human biallelic MFN2 mutations induce mitochondrial dysfunction, upper body adipose hyperplasia, and suppression of leptin expression

    Nuno Rocha et al.
    Specific human mitofusin 2 mutations induce selective upper body obesity with suppressed leptin expression and severe adipose mitochondrial dysfunction.
    1. Cell Biology

    Mfn2 ubiquitination by PINK1/parkin gates the p97-dependent release of ER from mitochondria to drive mitophagy

    Gian-Luca McLelland et al.
    A crucial step during the mitophagy cascade involves the disassembly of connections between mitochondria and the endoplasmic reticulum via the retrotranslocation of Mfn2 tethering complexes by the Parkinson's disease genes PARKIN and PINK1, as well as the ATPase VCP/p97.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Dynamic multifactor hubs interact transiently with sites of active transcription in Drosophila embryos

    Mustafa Mir et al.
    The probability of transcription factors binding to their target sites is choreographed through the formation of dynamic multi-protein hubs that transiently interact with actively transcribing genes.
    1. Chromosomes and Gene Expression

    Rapid epigenetic adaptation to uncontrolled heterochromatin spreading

    Jiyong Wang et al.
    Redundant pathways prevent heterochromatin spreading and ectopic heterochromatin assembly; and plasticity of heterochromatin assembly allows cells to adapt to heterochromatin stress.
    1. Cell Biology
    2. Computational and Systems Biology

    Limits on information transduction through amplitude and frequency regulation of transcription factor activity

    Anders S Hansen, Erin K O'Shea
    The ability of cells to transmit information encoded in signaling dynamics is fundamentally limited by the gene decoding step.
    1. Developmental Biology
    2. Neuroscience

    Mitochondrial fusion but not fission regulates larval growth and synaptic development through steroid hormone production

    Hector Sandoval et al.
    The dual role of Drosophila Mitofusin in steroid hormone production and cholesterol ester storage, which is evolutionary conserved by the combined expression of the two mammalian Mitofusins, ensures proper synaptic development.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Tandem hnRNP A1 RNA recognition motifs act in concert to repress the splicing of survival motor neuron exon 7

    Irene Beusch et al.
    The structural model of hnRNP A1 shows that it can bind with both RRMs to RNA, which is shown to be relevant for the SMN2 exon 7 splicing mechanism in vivo.
    1. Neuroscience

    Energy imbalance alters Ca2+ handling and excitability of POMC neurons

    Lars Paeger et al.
    The development of diet-dependent obesity results in the deterioration of calcium homeostasis in pro-opiomelanocortin-expressing neurons and impaired function of the same neurons.

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