32 results found
    1. Genetics and Genomics
    2. 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. Evolutionary Biology

    Retinal oxygen supply shaped the functional evolution of the vertebrate eye

    Christian Damsgaard et al.
    Multiple respiratory and vascular mechanisms have recurrently evolved across the vertebrates to alleviate the oxygen diffusion limitations inherent to the morphology of the retina.
    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. 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. 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. Cancer Biology

    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. Microbiology and Infectious Disease

    NSF-mediated disassembly of on- and off-pathway SNARE complexes and inhibition by complexin

    Ucheor B Choi et al.
    NSF is part of a membrane trafficking quality control system that disassembles both properly formed and off-pathway SNARE complexes, and the disassembly activity may be regulated by complexin.
    1. Biochemistry and Chemical Biology

    Translation attenuation by minocycline enhances longevity and proteostasis in old post-stress-responsive organisms

    Gregory M Solis et al.
    Directly targeting the ribosome to attenuate translation partly mimics the integrated stress response, increasing lifespan and preserving protein folding capacity even in older individuals with dysfunctional stress response signaling.

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