36 results found
    1. Neuroscience

    CaV1 and CaV2 calcium channels mediate the release of distinct pools of synaptic vesicles

    Brian D Mueller, Sean A Merrill ... Erik M Jorgensen
    The Caenorhabditis elegans presynapse contains two pools of synaptic vesicles at the active zone, coupled to either neuronal-type or muscle-type calcium channels, and to different docking machinery.
    1. Neuroscience

    Male pheromones modulate synaptic transmission at the C. elegans neuromuscular junction in a sexually dimorphic manner

    Kang-Ying Qian, Wan-Xin Zeng ... Xia-Jing Tong
    Male pheromone environment increases the cholinergic synaptic transmission at the neuromuscular junction in Caenorhabditis elegans hermaphrodites during development, decreasing hermaphrodites' locomotion activity and promoting mating efficiency.
    1. Genetics and Genomics
    2. Neuroscience

    Gain-of-function mutations in the UNC-2/CaV2α channel lead to excitation-dominant synaptic transmission in Caenorhabditis elegans

    Yung-Chi Huang, Jennifer K Pirri ... Mark J Alkema
    Caenorhabditis elegans studies indicate that gain-of-function mutations in the presynaptic voltage-gated calcium, associated with familial hemiplegic migraine in humans, result in excitatory-inhibitory imbalance in the nervous system.
    1. Neuroscience

    Activity-dependent regulation of T-type calcium channels by submembrane calcium ions

    Magali Cazade, Isabelle Bidaud ... Jean Chemin
    The feedback inhibition of T-type calcium channels by intracellular calcium provides new avenues to better decipher the roles of these low-voltage-activated channels in the fine control of calcium signaling events in physiology and pathophysiology.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    A novel region in the CaV2.1 α1 subunit C-terminus regulates fast synaptic vesicle fusion and vesicle docking at the mammalian presynaptic active zone

    Matthias Lübbert, R Oliver Goral ... Samuel M Young Jr
    A novel region in the CaV2.1 α1 subunit regulates coupling of synaptic vesicles to CaV2.1 calcium channels, synaptic vesicle release and docking, and the size of the fast and total releasable pools of synaptic vesicles.
    1. Neuroscience

    Diverse modes of synaptic signaling, regulation, and plasticity distinguish two classes of C. elegans glutamatergic neurons

    Donovan Ventimiglia, Cornelia I Bargmann
    Single-neuron synaptic imaging in vivo demonstrates that highly conserved molecules such as UNC-13, UNC-18, and protein kinase C, which are found at essentially every synapse make different functional contributions in Caenorhabditis elegans glutamatergic neurons.
    1. Neuroscience

    Ca2+ channel and active zone protein abundance intersects with input-specific synapse organization to shape functional synaptic diversity

    Audrey T Medeiros, Scott J Gratz ... Kate M O'Connor-Giles
    In vivo analysis of endogenously tagged Ca2+ channel subunits reveals unexpected differences in subunit composition and synapse-specific relationships between channel abundance and synaptic strength.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Molecular basis of the PIP2-dependent regulation of CaV2.2 channel and its modulation by CaV β subunits

    Cheon-Gyu Park, Wookyung Yu, Byung-Chang Suh
    The anchoring properties of CaV β2 subunits to the plasma membrane determine the biophysical states of CaV2.2 channels by regulating PIP2 coupling to the nonspecific phospholipid-binding site in the I–II loop.
    1. Neuroscience

    Dopamine neuron glutamate cotransmission evokes a delayed excitation in lateral dorsal striatal cholinergic interneurons

    Nao Chuhma, Susana Mingote ... Stephen Rayport
    Dopamine neurons make novel glutamatergic connections to striatal cholinergic interneurons in the lateral dorsal striatum that are mediated by metabotropic glutamate receptors coupled to TrpC channels.
    1. Neuroscience

    Shank promotes action potential repolarization by recruiting BK channels to calcium microdomains

    Luna Gao, Jian Zhao ... Joshua M Kaplan
    Shank promotes functional coupling between CaV1 calcium channels and BK potassium channels.

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