899 results found
    1. Neuroscience

    TrpML-mediated astrocyte microdomain Ca2+ transients regulate astrocyte–tracheal interactions

    Zhiguo Ma, Marc R Freeman
    Astrocyte microdomain calcium transients are mediated by TrpML, stimulated by ROS and tyramine, and mediate astrocyte–tracheal interactions in CNS gas exchange.
    1. Cell Biology
    2. Computational and Systems Biology

    Kinesin-4 KIF21B limits microtubule growth to allow rapid centrosome polarization in T cells

    Peter Jan Hooikaas et al.
    Kinesin-4 KIF21B promotes rapid reorientation of the microtubule network during formation of immunological synapse in T cells by acting as a pausing and catastrophe-inducing factor that keeps microtubules short.
    1. Neuroscience

    Acute disruption of the synaptic vesicle membrane protein synaptotagmin 1 using knockoff in mouse hippocampal neurons

    Jason D Vevea, Edwin R Chapman
    Knockoff is a tool for researchers who wish to acutely disrupt a membrane protein.
    1. Biochemistry and Chemical Biology

    A bacterial riboswitch class for the thiamin precursor HMP-PP employs a terminator-embedded aptamer

    Ruben M Atilho et al.
    Many bacteria use a tiny riboswitch aptamer to sense the thiamin precursor HMP-PP to regulate the production of another thiamin precursor HET-P to efficiently biosynthesize this essential coenzyme.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures reveal opening of the store-operated calcium channel Orai

    Xiaowei Hou et al.
    The structure of the calcium channel Orai in an open conformation reveals a dilated pore and gives insight into mechanisms of ion permeation and calcium selectivity.
    1. Neuroscience

    The Na+/Ca2+, K+ exchanger NCKX4 is required for efficient cone-mediated vision

    Frans Vinberg et al.
    Molecular, genetic, and functional analysis is used to show that the olfactory Na+/Ca2+, K+ exchanger NCKX4 is expressed in cone photoreceptors and is critical for the wide operating range and high temporal resolution of cone-mediated vision.
    1. Neuroscience

    Distinct regulation of dopamine D2S and D2L autoreceptor signaling by calcium

    Stephanie C Gantz et al.
    The loss of calcium-dependent D2 autoreceptor desensitization caused by prior in vivo cocaine exposure may be conferred by an unexpected role of the D2L splice variant as an autoreceptor.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Multiplex image-based autophagy RNAi screening identifies SMCR8 as ULK1 kinase activity and gene expression regulator

    Jennifer Jung et al.
    An image-based multiplex autophagosome RNAi screen targeting all Rab GTPases as well as their GAPs and GEFs identifies the Rab GEF SMCR8 as multifaceted autophagy modulator, which regulates kinase activity and gene expression of ULK1.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    Initial elevations in glutamate and dopamine neurotransmission decline with age, as does exploratory behavior, in LRRK2 G2019S knock-in mice

    Mattia Volta et al.
    LRRK2 G2019S knock-in mice are a genetically faithful model that recapitulates the slow disease progression of familial PD, with initial alterations to behaviour and neurotransmission providing early pathophysiological targets for neuroprotective interventions.
    1. Structural Biology and Molecular Biophysics

    The mechanism of MICU-dependent gating of the mitochondrial Ca2+uniporter

    Vivek Garg et al.
    A comprehensive functional analysis of mitochondrial Ca2+ uniporter (MCU) demonstrates that the auxiliary MICU subunits potentiate Ca2+ transport via MCU.

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