158 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism of activation-triggered subunit exchange in Ca2+/calmodulin-dependent protein kinase II

    Moitrayee Bhattacharyya et al.
    Closed-ring and open-spiral assembly of the multi-subunit neuronal kinase CaMKII suggest a mechanism for how active subunits shuttle between individual assemblies, propagating stimulatory signals.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Activation-triggered subunit exchange between CaMKII holoenzymes facilitates the spread of kinase activity

    Margaret Stratton et al.
    Activation of CaMKII holoenzymes triggers the exchange of subunits with other holoenzymes, including unactivated ones, enabling the calcium-independent phosphorylation and activation of new subunits.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Flexible linkers in CaMKII control the balance between activating and inhibitory autophosphorylation

    Moitrayee Bhattacharyya et al.
    Differences in the flexible linkers connecting the kinase domain to an oligomeric hub modulate CaMKII activity by changing the balance between activating and inhibitory autophosphorylation.
    1. Cell Biology
    2. Medicine

    The Ca2+-activated cation channel TRPM4 is a positive regulator of pressure overload-induced cardiac hypertrophy

    Yang Guo et al.
    The TRPM4 ion channel has been identified as an important component in the causation of mechanical pressure overload-induced pathological left ventricular hypertrophy, which is a powerful predictor of cardiovascular mortality.
    1. Biochemistry and Chemical Biology

    Breakage of the oligomeric CaMKII hub by the regulatory segment of the kinase

    Deepti Karandur et al.
    Activation and autophosphorylation of CaMKII releases the regulatory segment, which can then bind to and destabilize the hub assembly by trapping large fluctuations in the hub architecture.
    1. Cell Biology
    2. Neuroscience

    Functional interdependence of the actin nucleator Cobl and Cobl-like in dendritic arbor development

    Maryam Izadi et al.
    Extended biochemical and functional analyses in primary neurons show that early neuronal morphogenesis critically relies on cooperation of the actin nucleator Cobl and its ancestor Cobl-like and uncover their cooperative mechanisms at dendritic branch initiation sites.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    A model for regulation by SynGAP-α1 of binding of synaptic proteins to PDZ-domain 'Slots' in the postsynaptic density

    Ward G Walkup IV et al.
    The α1 isoform of synGAP restricts the binding of AMPA-receptors and other regulatory proteins to PSD-95, and thus regulates synaptic strength.
    1. Neuroscience

    Ablation of STAT3 in Purkinje cells reorganizes cerebellar synaptic plasticity in long-term fear memory network

    Jeong-Kyu Han et al.
    Cerebellar STAT3 is indispensable for proper expression of fear memory network processing.
    1. Neuroscience

    Chronic postnatal chemogenetic activation of forebrain excitatory neurons evokes persistent changes in mood behavior

    Sthitapranjya Pati et al.
    Enhanced Gq-signaling-mediated activation of forebrain excitatory neurons in postnatal life programs enhanced anxiety-, despair- and schizophrenia-like behavior, recapitulating key aspects of the behavioral consequences of early life adversity.
    1. Neuroscience

    Selective dendritic localization of mRNA in Drosophila mushroom body output neurons

    Jessica Mitchell et al.
    Specific mRNAs localize to the dendrites of Drosophila mushroom body output neurons.

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