44 results found
    1. Structural Biology and Molecular Biophysics

    rsEGFP2 enables fast RESOLFT nanoscopy of living cells

    Tim Grotjohann et al.
    The discovery of a fluorescent protein that can be rapidly switched between long-lived ‘on’ and ‘off’ states will lead to a new generation of super-resolution imaging experiments on living cells.
    1. Cell Biology

    In vivo super-resolution RESOLFT microscopy of Drosophila melanogaster

    Sebastian Schnorrenberg et al.
    Building on previous work (Grotjohann et al., 2012), low-light super-resolution microscopy has been performed on living transgenic Drosophila larvae and tissues.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    High-throughput, single-particle tracking reveals nested membrane domains that dictate KRasG12D diffusion and trafficking

    Yerim Lee et al.
    The nanoscopic landscape of the membrane has a direct impact on the spatiotemporal, and likely also the signaling, dynamics of Ras proteins.
    1. Neuroscience

    Spatiotemporal dynamics of multi-vesicular release is determined by heterogeneity of release sites within central synapses

    Dario Maschi, Vitaly A Klyachko
    Release site heterogeneity represents a previously unknown level of structural and functional organization within individual active zones in central synapses, which determines the spatiotemporal dynamics of multi-vesicular release.
    1. Physics of Living Systems

    Negative reciprocity, not ordered assembly, underlies the interaction of Sox2 and Oct4 on DNA

    John W Biddle et al.
    Rigorous reanalysis of single-molecule data yields evidence for energy expenditure in the interaction of transcription factors on DNA.
    1. Cell Biology

    An adaptation of astronomical image processing enables characterization and functional 3D mapping of individual sites of excitation-contraction coupling in rat cardiac muscle

    Qinghai Tian et al.
    The fusion of astronomy and cellular cardiology reveals the 3D arrangement and the firing reliability of active excitation-contraction coupling sites in beating cardiac myocytes.
    1. Structural Biology and Molecular Biophysics

    A lipid bound actin meshwork organizes liquid phase separation in model membranes

    Alf Honigmann et al.
    A combination of imaging experiments and computer simulations on a model lipid membrane integrate the 'picket fence' and 'raft' models, and suggest that the interplay between actin binding, lipid phase separation and curvature compartmentalize the membrane.
    1. Physics of Living Systems
    2. Cell Biology

    The axonal actin-spectrin lattice acts as a tension buffering shock absorber

    Sushil Dubey et al.
    A linear array of spectrin tetramers imparts mechanical stability to axons by allowing spectrin domains to unfold reversibly when an axon is stretched, thereby acting as tension buffers.
    1. Microbiology and Infectious Disease

    Maturing Mycobacterium smegmatis peptidoglycan requires non-canonical crosslinks to maintain shape

    Catherine Baranowski et al.
    Polar elongating mycobacteria (Mycobacterium smegmatis) require specific cell wall chemistries, those catalyzed by targets of critical antibiotics, to maintain rod shape at aging sites of the bacillus.

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