13 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Eukaryotic translation initiation factor 3 plays distinct roles at the mRNA entry and exit channels of the ribosomal preinitiation complex

    Colin Echeverría Aitken et al.
    Eukaryotic translation initiation factor 3 (eIF3) is required to stabilize the binding of mRNA at the exit channel of the small ribosomal subunit and acts at the entry channel to accelerate mRNA recruitment to the translation preinitiation complex.
    1. Cell Biology

    Regulation of the PI3K pathway through a p85α monomer–homodimer equilibrium

    Lydia WT Cheung et al.
    The p85α homodimer plays a role in the PI3K pathway by regulating PTEN function.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Functional genomics of lipid metabolism in the oleaginous yeast Rhodosporidium toruloides

    Samuel T Coradetti et al.
    Using barcoded mutagenesis and a high-throughput genetic screen results in the identification of 150 genes that affect lipid accumulation in a non-model yeast system.
    1. Developmental Biology

    Muscle niche-driven Insulin-Notch-Myc cascade reactivates dormant Adult Muscle Precursors in Drosophila

    Rajaguru Aradhya et al.
    Adult muscle precursors (AMP) cells in Drosophila send out filopodia to interact with neighbouring muscles, which drive the reactivation of AMPs via an Insulin-Notch-Myc cascade.
    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    O-GlcNAc on NOTCH1 EGF repeats regulates ligand-induced Notch signaling and vascular development in mammals

    Shogo Sawaguchi et al.
    The transfer of O-GlcNAc by EOGT to specific EGF repeats of NOTCH1 promotes DLL4 binding, Notch signaling, and retinal vascular development.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Phenotypic complementation of genetic immunodeficiency by chronic herpesvirus infection

    Donna A MacDuff et al.
    HOIL-1 deficiency in mice results in a severe immunodeficiency that is effectively complemented by chronic infection with a murine gamma-herpesvirus.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Concerted regulation of ISWI by an autoinhibitory domain and the H4 N-terminal tail

    Johanna Ludwigsen et al.
    The N-terminal domain of the chromatin remodeler ISWI contains previously uncharacterized conserved motifs that maintain structure, prevent ATP hydrolysis unless nucleosomes are bound, and confer H4-tail sensitivity without directly competing with the H4 tail.
    1. Cell Biology
    2. Neuroscience

    Dual function of the PI3K-Akt-mTORC1 axis in myelination of the peripheral nervous system

    Gianluca Figlia et al.
    High PI3K-Akt-mTORC1 activity inhibits Schwann cell differentiation, while after onset of myelination, residual PI3K-Akt-mTORC1 activity promotes myelin growth.
    1. Biochemistry and Chemical Biology

    Serine ADP-ribosylation reversal by the hydrolase ARH3

    Pietro Fontana et al.
    ARH3 is an enzyme that hydrolyses serine ADP-ribosylation, a recently uncovered post-translational protein modification.
    1. Cell Biology

    In vivo identification of GTPase interactors by mitochondrial relocalization and proximity biotinylation

    Alison K Gillingham et al.
    Relocation of Rab, Ras and Rho family GTPases to the surface of mitochondria enables efficient identification of their effectors, exchange factors and GAPs by proximity biotinylation.

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