1,666 results found
    1. Cell Biology
    2. Immunology and Inflammation

    Intermittent Ca2+ signals mediated by Orai1 regulate basal T cell motility

    Tobias X Dong et al.
    Orai1 channels activate intermittently in motile T cells, generating calcium transients, detected by a novel genetically encoded indicator and inducing pauses that favor antigen scanning.
    1. Neuroscience

    Two-photon calcium imaging of the medial prefrontal cortex and hippocampus without cortical invasion

    Masashi Kondo et al.
    Establishment of two-photon imaging with a 1100-nm laser, which underfills the objective's back aperture, detects activity of multiple neurons in the prelimbic area and hippocampal CA1 region of the intact mouse brain.
    1. Cell Biology
    2. Immunology and Inflammation

    T-cell calcium dynamics visualized in a ratiometric tdTomato-GCaMP6f transgenic reporter mouse

    Tobias X Dong et al.
    Salsa6f is a novel, ratiometric genetically encoded Ca2+ indicator that combines the power of ratiometric chemical Ca2+ indicators with the ability, when expressed transgenically, to image cellular Ca2+ signals amid complex tissue environments in vivo.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    Optical estimation of absolute membrane potential using fluorescence lifetime imaging

    Julia R Lazzari-Dean et al.
    Fluorescence lifetime imaging microscopy, paired with fluorescent, voltage-sensitive dyes, provides a method for measuring and quantifying membrane potentials of living cells.
    1. Neuroscience

    Local processing in neurites of VGluT3-expressing amacrine cells differentially organizes visual information

    Jen-Chun Hsiang et al.
    Neurite arbors of VGluT3-expressing amacrine cells (VG3-ACs) process visual information locally uniformly detecting object motion while varying in contrast preferences; and in spite of extensive overlap between arbors of neighboring cells population activity in the VG3-AC plexus encodes stimulus positions with subcellular precision.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    The long non-coding RNA Cerox1 is a post transcriptional regulator of mitochondrial complex I catalytic activity

    Tamara M Sirey et al.
    Mitochondrial energy metabolism is post-transcriptionally regulated through an interplay between long and short non-coding RNAs.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Tunable molecular tension sensors reveal extension-based control of vinculin loading

    Andrew S LaCroix et al.
    A quantitative understanding of molecular tension sensor function enables the production of unique sensors with desired mechanical properties as well as the ability to distinguish between protein force and protein deformation in mechanosensitive processes.
    1. Evolutionary Biology

    Evolution of Yin and Yang isoforms of a chromatin remodeling subunit precedes the creation of two genes

    Wen Xu et al.
    Gene sharing through different isoforms can precede the formation of independent genes.
    1. Neuroscience

    Fast two-photon imaging of subcellular voltage dynamics in neuronal tissue with genetically encoded indicators

    Simon Chamberland et al.
    The combination of a new genetically encoded voltage indicator and fast two-photon imaging methods enables detection of rapid neural electrical activity in organotypic slice cultures and in living flies.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Lipoate-binding proteins and specific lipoate-protein ligases in microbial sulfur oxidation reveal an atpyical role for an old cofactor

    Xinyun Cao et al.
    An unexpected new biological function was discovered for the universally conserved cofactor lipoate, as lipoate-binding proteins proved essential for a novel wide-spread prokaryotic sulfur oxidation pathway.

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