23 results found
    1. Evolutionary Biology

    Evolution: Oxygen and early animals

    Kalle T Rytkönen
    The biology of sponges provides clues about how early animals may have dealt with low levels of oxygen.
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    1. Evolutionary Biology

    The last common ancestor of animals lacked the HIF pathway and respired in low-oxygen environments

    Daniel B Mills et al.
    Sponges and ctenophores lack hypoxia-inducible factors, suggesting that the metazoan last common ancestor could have lived aerobically under severe hypoxia and did not need to regulate its transcription in response to oxygen availability.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    ME31B globally represses maternal mRNAs by two distinct mechanisms during the Drosophila maternal-to-zygotic transition

    Miranda Wang et al.
    ME31B is a general repressor of gene expression in the Drosophila early embryo, repressing translation before the maternal-to-zygotic transition and stimulating mRNA decay after activation of the zygotic genome.
    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

    Additive effects on the energy barrier for synaptic vesicle fusion cause supralinear effects on the vesicle fusion rate

    Sebastiaan Schotten et al.
    Independent osmotic, genetic and biochemical perturbations modulate neurotransmitter release in a multiplicative manner.
    1. Biochemistry and Chemical Biology
    2. Human Biology and Medicine

    Overcoming myelosuppression due to synthetic lethal toxicity for FLT3-targeted acute myeloid leukemia therapy

    Alexander A Warkentin et al.
    Anti-targets are proteins that cause problems when inhibited along with an intended target and our novel chemical strategy affords unprecedented selectivity in the context of FLT3 vs. KIT inhibition for treatment of a devastating blood cancer.
    1. Developmental Biology

    An essential role for maternal control of Nodal signaling

    Pooja Kumari et al.
    Regulation of conserved Nodal factors by a maternal protein ensures that Nodal signaling is repressed until the appropriate time in embryonic development.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Sorting of a multi-subunit ubiquitin ligase complex in the endolysosome system

    Xi Yang et al.
    A single transmembrane E3 ligase complex can regulate protein ubiquitination at multiple organelles using interchangeable targeting subunits.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Electrostatic anchoring precedes stable membrane attachment of SNAP25/SNAP23 to the plasma membrane

    Pascal Weber et al.
    A step of contact establishment preceding stable membrane attachment by palmitoylation is identified.
    1. Neuroscience

    APP and APLP2 interact with the synaptic release machinery and facilitate transmitter release at hippocampal synapses

    Tomas Fanutza et al.
    A naturally occurring intracellular peptide, derived by processing the Alzheimer's protein APP, reduces synaptic transmission by acting as a dominant negative of APP.

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