72 results found
    1. Structural Biology and Molecular Biophysics

    Structural and functional characterization of an otopetrin family proton channel

    Qingfeng Chen, Weizhong Zeng ... Youxing Jiang
    Structural and functional analysis of the OTOP3 channel from Xenopus tropicalis offers insights into the mechanism of ion transport and regulation in the otopetrin proton channel family.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Chromatin accessibility dynamics and single cell RNA-Seq reveal new regulators of regeneration in neural progenitors

    Anneke Dixie Kakebeen, Alexander Daniel Chitsazan ... Andrea Elizabeth Wills
    Regenerating neural progenitors of the Xenopus tropicalis tail prioritize differentiation to motor neuron types earlier than proliferation, a decision partly regulated by the transcription factors Pbx3 and Meis1.
    1. Developmental Biology
    2. Evolutionary Biology

    Hybridization led to a rewired pluripotency network in the allotetraploid Xenopus laevis

    Wesley A Phelps, Matthew D Hurton ... Miler T Lee
    Xenopus laevis arose from hybridization of two different frog species millions of years ago, leading to adaptation of the genetic networks controlling early embryonic development and stem cell induction to balance expression between the genes inherited from each ancestor.
    1. Developmental Biology

    Sox17 and β-catenin co-occupy Wnt-responsive enhancers to govern the endoderm gene regulatory network

    Shreyasi Mukherjee, Praneet Chaturvedi ... Aaron M Zorn
    Genomic analysis of Xenopus gastrula reveal that the transcription factor Sox17 interacts with the Wnt signaling effector ß-catenin on enhancers to regulate the transcriptional program underlying endoderm germ layer formation.
    1. Developmental Biology

    Histone deacetylase 1 maintains lineage integrity through histone acetylome refinement during early embryogenesis

    Jeff Jiajing Zhou, Jin Sun Cho ... Ken WY Cho
    Histone deacetylase 1 (Hdac1) plays a crucial role in maintaining differential histone acetylation states of enhancers in various germ layers and regulates the transcriptional program both temporally and spatially.
    1. Neuroscience

    Two conserved vocal central pattern generators broadly tuned for fast and slow rates generate species-specific vocalizations in Xenopus clawed frogs

    Ayako Yamaguchi, Manon Peltier
    Although courtship vocalizations are unique to each species, the basic architecture of the neural circuitries underlying this behavior is conserved among closely related species of frogs, suggesting behavior can diverge while utilizing the homologous neural network inherited through evolutionary lineage.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    The Cryo-EM structure of pannexin 1 reveals unique motifs for ion selection and inhibition

    Kevin Michalski, Johanna L Syrjanen ... Toshimitsu Kawate
    The structure of a pannexin 1 uncovers the extracellular loops of pannexin 1 as important structural motifs for ion selectivity and channel inhibition.
    1. Cell Biology
    2. Developmental Biology

    The tumor suppressor PTPRK promotes ZNRF3 internalization and is required for Wnt inhibition in the Spemann organizer

    Ling-Shih Chang, Minseong Kim ... Christof Niehrs
    Two cancer related proteins, tyrosine phosphatase PTPRK and ubiquitin ligase ZNRF3, interact to downregulate Wnt receptors, thereby regulating Spemann organizer function during Xenopus development.
    1. Cell Biology
    2. Developmental Biology

    Ciliary transcription factors and miRNAs precisely regulate Cp110 levels required for ciliary adhesions and ciliogenesis

    Peter Walentek, Ian K Quigley ... Richard M Harland
    At optimal concentrations, the ciliary inhibitor Cp110 promotes ciliogenesis by localization to previously uncharacterized sites at the basal body, where it recruits ciliary adhesion complexes that mediate basal body interaction with F-actin networks.
    1. Cell Biology
    2. Physics of Living Systems

    Mechanical stretch scales centriole number to apical area via Piezo1 in multiciliated cells

    Saurabh Kulkarni, Jonathan Marquez ... Mustafa K Khokha
    Embryonic and mechanical manipulations of Xenopus multiciliated epithelium reveals that cell non-autonomous tensile forces generated by embryonic elongation calibrate cilia number in multiciliated cells via a mechanosensitive ion channel, Piezo1.

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