Gap Junctions, TEM

Gap Junctions, TEM

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Credit: Don W. Fawcett/SCIENCE PHOTO LIBRARY

Caption: Colour enhanced transmission electron micrograph of freeze-fractured gap junctions. Gap junctions are isolated from mouse liver cells and examined by negative staining using phosphotungstate or uranyl formate as the contrast medium. At high magnification, the 8 to 9 nm particles or connexons have central 1.5 to 2nm electron-dense region which is believed to represent the polar channel through which cell to cell communication takes place.

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Keywords: cell, cells, colorized, connexons, cryofixation, cryofixed, enhanced, freeze fracture, freeze fractured, freeze-fracture, freeze-fractured, gap junction, gap junctions, histology, micrography, microscopy, mouse liver, mouse liver cell, mouse liver cells, negative stain, negative staining, negatively stained, phosphotungstate, science, tem, transmission electron micrograph, transmission electron microscopy, uranyl formate

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