106 results found
    1. Developmental Biology
    2. Structural Biology and Molecular Biophysics

    Deep learning insights into the architecture of the mammalian egg-sperm fusion synapse

    Arne Elofsson, Ling Han ... Luca Jovine
    AlphaFold-Multimer was used to investigate extracellular protein interactions involved in mammalian egg-sperm recognition, suggesting a putative pentameric complex that includes TMEM81, a sperm protein not previously involved in gamete recognition.
    1. Neuroscience

    Differential effects of light and feeding on circadian organization of peripheral clocks in a forebrain Bmal1 mutant

    Mariko Izumo, Martina Pejchal ... Joseph S Takahashi
    Conditional deletion of Bmal1 in the forebrain/SCN reveals an essential role of a functional master clock in maintaining synchronized and high amplitude rhythms of peripheral clocks.
    1. Cell Biology
    2. Developmental Biology

    TMEM95 is a sperm membrane protein essential for mammalian fertilization

    Ismael Lamas-Toranzo, Julieta G Hamze ... Pablo Bermejo-Álvarez
    TMEM95, a protein localized to the sperm acrosome cap, is essential for fertilization.
    1. Cell Biology
    2. Plant Biology

    Autophagosome development and chloroplast segmentation occur synchronously for piecemeal degradation of chloroplasts

    Masanori Izumi, Sakuya Nakamura ... Shinya Hagihara
    A plant autophagy pathway transports chloroplast stroma and envelope components into the vacuole through the division and encapsulation of the site of chloroplasts that is associated with developing autophagosome.
    1. Cell Biology

    Functional hierarchy among different Rab27 effectors involved in secretory granule exocytosis

    Kunli Zhao, Kohichi Matsunaga ... Tetsuro Izumi
    TIRF microscopy in living pancreatic beta cells lacking one or two of Rab27 effectors and the exocyst components reveals how each molecule functions in sequence or in parallel in multiple redundant paths and rate-limiting processes in granule exocytosis.
    1. Cell Biology
    2. Neuroscience

    Exophilin-8 assembles secretory granules for exocytosis in the actin cortex via interaction with RIM-BP2 and myosin-VIIa

    Fushun Fan, Kohichi Matsunaga ... Tetsuro Izumi
    Analyses of knockout mice and a biochemical screen of interacting proteins reveal that exophilin-8 forms a large network of protein interactions to efficiently retain secretory granules beneath the plasma membrane for exocytosis.
    1. Immunology and Inflammation

    Fine-tuning of β-catenin in mouse thymic epithelial cells is required for postnatal T-cell development

    Sayumi Fujimori, Izumi Ohigashi ... Shinji Takada
    Highly specific gene manipulation in mouse thymic epithelial cells (TECs) shows that fine-tuning of β-catenin expression is required for TECs to generate an optimal thymic microenvironment to support T-cell development.
    1. Immunology and Inflammation

    Developmental conversion of thymocyte-attracting cells into self-antigen-displaying cells in embryonic thymus medulla epithelium

    Izumi Ohigashi, Andrea J White ... Yousuke Takahama
    Thymocyte-attracting CCL21-expressing embryonic mTECs carry a developmental potential to give rise to self-antigen-displaying Aire-expressing mTECs.
    1. Neuroscience

    State-dependent representations of mixtures by the olfactory bulb

    Aliya Mari Adefuin, Sander Lindeman ... Izumi Fukunaga
    Responses to odour mixtures are more discriminable in awake, behaving mice due to a combination of dampened responses keeping responses in the linear range and pattern decorrelation, with these two mechanisms operating on different timescales.
    1. Cell Biology

    A pathway for Parkinson’s Disease LRRK2 kinase to block primary cilia and Sonic hedgehog signaling in the brain

    Herschel S Dhekne, Izumi Yanatori ... Suzanne R Pfeffer
    Pathogenic LRRK2kinase requires Rab10 and RILPL1 to block primary cilia formation, shortening cilia on cholinergic neurons needed for a hedgehog driven circuit that supports dopaminergic neurons in mouse brain.

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