1,425 results found
    1. Structural Biology and Molecular Biophysics
    2. Human Biology and Medicine

    Estrogen receptor alpha somatic mutations Y537S and D538G confer breast cancer endocrine resistance by stabilizing the activating function-2 binding conformation

    Sean W Fanning et al.
    Two common mutant versions of estrogen receptor alpha achieve constitutive activity and hormone-resistance by preferentially adopting a suite of conformations that expose the coregulator-binding surface.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Two new polymorphic structures of human full-length alpha-synuclein fibrils solved by cryo-electron microscopy

    Ricardo Guerrero-Ferreira et al.
    Two new polymorphic structures of recombinant human alpha-synuclein fibrils show striking differences to previous structures, while familial PD mutation sites remain crucial for protofilament interaction and fibril stability.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of alpha-synuclein fibrils

    Ricardo Guerrero-Ferreira et al.
    The alpha-synuclein fibril structure reported here buries residues 50-57 at the interface between its two protofilaments, suggesting that familial Parkinson's disease associated mutations in these residues lead to a structure not compatible with the one presented here.
    1. Neuroscience

    Electrocorticographic dissociation of alpha and beta rhythmic activity in the human sensorimotor system

    Arjen Stolk et al.
    Direct cortical recordings in humans link the spectral structure of local field potentials to inhibition/disinhibition mechanisms coordinating sensorimotor neuronal populations during movement imagery.
    1. Neuroscience

    Auditory cortical alpha/beta desynchronization prioritizes the representation of memory items during a retention period

    Nathan Weisz et al.
    Top-down mediated decreases of beta activity in auditory cortex prior to a predictable distractor in an auditory working memory task is associated with increased representation of to-be-memorized information.
    1. Computational and Systems Biology
    2. Neuroscience

    Stochastic resonance mediates the state-dependent effect of periodic stimulation on cortical alpha oscillations

    Jérémie Lefebvre et al.
    Stochastic resonance, triggered by fluctuations in brain state, is found to determine the outcomes of periodic stimulation and how it interacts with brain oscillations.
    1. Neuroscience

    Alpha/beta power decreases track the fidelity of stimulus-specific information

    Benjamin James Griffiths et al.
    Neural representations of stimulus-specific information increase in fidelity as the power of alpha/beta activity decreases, suggesting that alpha/beta power decreases reflect a domain-general mechanism that supports information representation.
    1. Neuroscience

    TRIM28 regulates the nuclear accumulation and toxicity of both alpha-synuclein and tau

    Maxime WC Rousseaux et al.
    Convergent screens targeting the levels of alpha-synuclein and tau identify TRIM28 as a driver of their stability, nuclear accumulation and subsequent toxicity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of nucleic-acid recognition and double-strand unwinding by the essential neuronal protein Pur-alpha

    Janine Weber et al.
    The crystal structure of Pur-alpha in complex with DNA reveals its molecular mechanisms of nucleic-acid binding and unwinding, allowing for a better understanding of its essential role in neurons.
    1. Neuroscience

    Alpha protocadherins and Pyk2 kinase regulate cortical neuron migration and cytoskeletal dynamics via Rac1 GTPase and WAVE complex in mice

    Li Fan et al.
    A general cytoplasmic signaling mechanism for the novel functions of diverse alpha protocadherins in cortical neuron migration and actin cytoskeletal dynamics as well as dendrite morphogenesis in the brain.

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