Cell Biology

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    Protocols in Current Issue
    A Novel Method to Map Small RNAs with High Resolution
    Authors:  Kun Huang, Feray Demirci, Blake C. Meyers and Jeffrey L. Caplan, date: 08/20/2021, view: 624, Q&A: 0
    [Abstract]

    Analyzing cellular structures and the relative location of molecules is essential for addressing biological questions. Super-resolution microscopy techniques that bypass the light diffraction limit have become increasingly popular to study cellular molecule dynamics in situ. However, the application of super-resolution imaging techniques to detect

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    Super-resolution Imaging of the T cell Central Supramolecular Signaling Cluster Using Stimulated Emission Depletion Microscopy
    Authors:  Sin Lih Tan, Dominic Alibhai, Stephen J. Cross, Harry Thompson and Christoph Wülfing, date: 11/05/2020, view: 1258, Q&A: 0
    [Abstract]

    Supramolecular signaling assemblies are of interest for their unique signaling properties. A µm scale signaling assembly, the central supramolecular signaling cluster (cSMAC), forms at the center interface of T cells activated by antigen presenting cells (APC). The adaptor protein linker for activation of T cells (LAT) is a key cSMAC component.

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    Live-cell Imaging by Super-resolution Confocal Live Imaging Microscopy (SCLIM): Simultaneous Three-color and Four-dimensional Live Cell Imaging with High Space and Time Resolution
    Authors:  Kazuo Kurokawa and Akihiko Nakano, date: 09/05/2020, view: 2800, Q&A: 0
    [Abstract] Many questions in cell biology can be solved by state-of-the-art technology of live cell imaging. One good example is the mechanism of membrane traffic, in which small membrane carriers are rapidly moving around in the cytoplasm to deliver cargo proteins between organelles. For directly visualizing the events in membrane trafficking system, ...
    Superresolution Microscopy of Drosophila Indirect Flight Muscle Sarcomeres
    Authors:  Szilárd Szikora, Tibor Novák, Tamás Gajdos, Miklós Erdélyi and József Mihály, date: 06/20/2020, view: 2402, Q&A: 0
    [Abstract] Sarcomeres are extremely highly ordered macromolecular assemblies where proper structural organization is an absolute prerequisite to the functionality of these contractile units. Despite the wealth of information collected, the exact spatial arrangement of many of the H-zone and Z-disk proteins remained unknown. Recently, we developed a powerful ...
    Super-resolution Microscopy at Cryogenic Temperatures Using Solid Immersion Lenses
    [Abstract] Our mechanistic understanding of cell function depends on imaging biological processes in cells with molecular resolution. Super-resolution fluorescence microscopy plays a crucial role by reporting cellular ultrastructure with 20-30 nm resolution. However, this resolution is insufficient to image macro-molecular machinery at work. A path to ...
    Cluster Analysis of Endogenous HER2 and HER3 Receptors in SKBR3 Cells
    [Abstract] The Human Epidermal Growth Factor Receptor (HER) family of receptor tyrosine kinases consists of four, single pass, transmembrane receptor homologs (HER1-4) that act to regulate many critical processes in normal and tumor cells. HER2 is overexpressed in many tumors, and the deregulated proliferation of cancerous cells is driven by cooperation with ...



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