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

    The multi-subunit GID/CTLH E3 ubiquitin ligase promotes cell proliferation and targets the transcription factor Hbp1 for degradation

    Fabienne Lampert et al.
    Proteomic, biochemical and cell-based analyses of the heterodecameric core GID/CTLH E3 ligase complex reveal its molecular architecture, activity determinants, and function in targeting the tumor suppressor Hbp1 and other substrates required for cell proliferation.
    1. Neuroscience

    Increased expression of heme-binding protein 1 early in Alzheimer's disease is linked to neurotoxicity

    Oleksandr Yagensky et al.
    Increased levels of brain Hebp1 starting from the presymptomatic stage of Alzheimer’s disease contributes to progressive neuronal loss by triggering mitochondrial-dependent apoptosis in neurons exposed to elevated heme.
    1. Cancer Biology
    2. Cell Biology

    GPCR signaling inhibits mTORC1 via PKA phosphorylation of Raptor

    Jenna L Jewell et al.
    Protein kinase A (PKA) phosphorylates Raptor and inhibits mammalian target of rapamycin complex 1 (mTORC1) activity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    bMERB domains are bivalent Rab8 family effectors evolved by gene duplication

    Amrita Rai et al.
    A human three-helix Rab-binding domain can potentially bind to two Rab proteins simultaneously with different affinities at binding sites generated by gene duplication.
    1. Cancer Biology

    eIF4E S209 phosphorylation licenses myc- and stress-driven oncogenesis

    Hang Ruan et al.
    Genetic and transcriptomic analyses revealed that eIF4E S209 phosphorylation enables Myc and mutant KRAS cooperation in colon cancer through stress- and glutamine-dependent growth and addiction.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Defining human mesenchymal and epithelial heterogeneity in response to oral inflammatory disease

    Ana J Caetano et al.
    Single cell transcriptomic analysis provides a reference map for human oral muscosa in health and disease and a framework for the development of new therapeutic strategies.
    1. Neuroscience

    UBE3A-mediated p18/LAMTOR1 ubiquitination and degradation regulate mTORC1 activity and synaptic plasticity

    Jiandong Sun et al.
    A new mechanism linking lysosomes to mTOR regulation and synaptic plasticity involves p18 ubiquitination by Ube3a, and underlies some of the pathology observed in Angelman syndrome.
    1. Structural Biology and Molecular Biophysics

    Structural model for differential cap maturation at growing microtubule ends

    Juan Estévez-Gallego et al.
    The tubulin GTPase cycle structurally modulates the microtubule cap, causing lattice expansion, which is an intermediate state involved in phosphate release and regulatory signaling.
    1. Cell Biology
    2. Computational and Systems Biology

    Regulation of mRNA translation during mitosis

    Marvin E Tanenbaum et al.
    Ribosomal profiling reveals that translational repression is an important mechanism for cell cycle control and can complement protein degradation.
    1. Biochemistry and Chemical Biology

    LARP1 functions as a molecular switch for mTORC1-mediated translation of an essential class of mRNAs

    Sungki Hong et al.
    LARP1 turns off and on the translation of an essential class of mRNAs by acting as a key effecter and regulator for mTORC1.

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