111 results found
    1. Cell Biology
    2. Plant Biology

    Two mechanisms regulate directional cell growth in Arabidopsis lateral roots

    Charlotte Kirchhelle et al.
    In lateral roots, cells employ a novel pathway to cell edges to control directional growth, which acts independently of the leading paradigm of oriented deposition of cellulose microfibrils at faces.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    An engineered monomer binding-protein for α-synuclein efficiently inhibits the proliferation of amyloid fibrils

    Emil Dandanell Agerschou et al.
    The high affinity α-synuclein-monomer binder AS69 converts into a strong sub-stoichiometric inhibitor of nucleation processes upon formation of the AS69-α-synuclein complex, achieving reduced aggregation in vitro and in vivo.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Formin-2 drives polymerisation of actin filaments enabling segregation of apicoplasts and cytokinesis in Plasmodium falciparum

    Johannes Felix Stortz et al.
    Formin-2 controls spatiotemporal polymerisation of actin filaments, a common mechanism used by apicomplexans for effective segregation of essential chloroplast-like organelles called apicoplasts, and additionally for daughter formation in Plasmodium falciparum.
    1. Developmental Biology
    2. Neuroscience

    Lmx1b is required at multiple stages to build expansive serotonergic axon architectures

    Lauren J Donovan et al.
    A continuously expressed LIM HD factor, Lmx1b, acts at successive stages to orchestrate the progressive morphological maturation of a long-range profusely arborized neuromodulatory axonal projection pathway.
    1. Neuroscience

    A connectional hub in the rostral anterior cingulate cortex links areas of emotion and cognitive control

    Wei Tang et al.
    A hub in the rostral anterior cingulate cortex receives unusually high and functionally diverse inputs, providing a biological interface between motivation, incentive based learning, and decision making.
    1. Structural Biology and Molecular Biophysics

    Molecular mechanisms of human P2X3 receptor channel activation and modulation by divalent cation bound ATP

    Mufeng Li et al.
    Structural, computational and functional approaches reveal the role of an extended acidic chamber near the nucleotide binding site in activation of P2X3 receptor channels by divalent-bound ATP.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Monitoring site-specific conformational changes in real-time reveals a misfolding mechanism of the prion protein

    Ishita Sengupta, Jayant Udgaonkar
    Multi-site FRET measurements of moPrP oligomerization at low pH indicate that major conformational changes take place as monomers reversibly transform into large oligomers, which subsequently disassemble reversibly into small oligomers.
    1. Cell Biology

    Cooperation between tropomyosin and α-actinin inhibits fimbrin association with actin filament networks in fission yeast

    Jenna R Christensen et al.
    The contractile ring actin binding proteins tropomyosin Cdc8 and a-actinin Ain1 synergize to effectively compete with the endocytic actin patch protein fimbrin Fim1 for associating with F-actin networks.
    1. Human Biology and Medicine
    2. Neuroscience

    PI3K-Yap activity drives cortical gyrification and hydrocephalus in mice

    Achira Roy et al.
    Embryonic PI3K-Yap activity regulates apical adhesion and proliferation of neural progenitors lining the lateral ventricular surface, to maintain the smooth, non-folded mouse brain and to prevent developmental hydrocephalus.
    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.

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