26 results found
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    'Palaeoshellomics’ reveals the use of freshwater mother-of-pearl in prehistory

    Jorune Sakalauskaite et al.
    Ancient proteomes from tiny shell ornaments were successfully characterised for the first time, showing the unexpected use of mother-of-pearl from local riverine molluscs in both coastal and inland prehistoric sites.
    1. Genetics and Genomics

    Firefly genomes illuminate parallel origins of bioluminescence in beetles

    Timothy R Fallon et al.
    The first genomic view of beetle luciferase evolution indicates evolutionary independence of luciferase between fireflies and click-beetles, and provide valuable datasets which will accelerate the discovery of new biotechnological tools.
    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. Cell Biology

    The spatial separation of processing and transport functions to the interior and periphery of the Golgi stack

    Hieng Chiong Tie et al.
    Transport machinery localizes at the cisternal rim while modification machinery localizes at the interior.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Protein sequences bound to mineral surfaces persist into deep time

    Beatrice Demarchi et al.
    A chemically unstable ostrich eggshell peptide survives for at least 3.8 million years at the equator, stabilized by strong mineral interactions.
    1. Ecology
    2. Plant Biology

    The decoration of specialized metabolites influences stylar development

    Jiancai Li et al.
    Regulation of diterpene glycoside malonylation status influences stylar elongation through affecting auxin signaling in Nicotiana attenuata.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    cAMP signaling regulates DNA hydroxymethylation by augmenting the intracellular labile ferrous iron pool

    Vladimir Camarena et al.
    cAMP is identified to play a novel role in regulating DNA demethylation and gene transcription by augmenting the intracellular reactive Fe(II) pool.
    1. Neuroscience

    PARIS, an optogenetic method for functionally mapping gap junctions

    Ling Wu et al.
    As the first fully genetically encoded method, PARIS allows cell-specific, long-term, repeated measurements of gap junctional coupling with high spatiotemporal resolution, facilitating its study in both health and disease.
    1. Cell Biology
    2. Human Biology and Medicine

    Impaired lysosomal acidification triggers iron deficiency and inflammation in vivo

    King Faisal Yambire et al.
    Impaired lysosomal acidification results in retention of iron inside lysosomes, triggering functional iron deficiency, dysfunctional mitochondria (especially mtDNA loss), and inflammation in vivo in a mouse model of lysosomal disease.
    1. Developmental Biology

    An oxygen-insensitive Hif-3α isoform inhibits Wnt signaling by destabilizing the nuclear β-catenin complex

    Peng Zhang et al.
    Hif/Hif-3α has two distinct roles in cells: activating HRE-dependent gene expression and binding to β-catenin to destabilize the nuclear β-catenin complex.

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