51.6 MB (6.7 MB compressed)
5140 x 3510 pixels
43.4 x 29.7 cm ⏐ 17.1 x 11.7 in (300dpi)
DR PETER DAWSON / SCIENCE PHOTO LIBRARY DR PETER DAWSON / SCIENCE PHOTO LIBRARY
Ultraviolet fluorescence light micrograph of cytoskeletons showing the distribution of an intermediate filament protein called vimentin. The cells are from the kidney epithelium of the kangaroo-rat. The cytoskeleton falls into two components; microtubules, which are rigid protein tubes that act as direction markers in a cell and two filamentous components called microfilaments & intermediate filaments. Intermediate filaments, are flexible, forming three dimensional networks. They are thought to be directly involved in the movement of organelles, vesicles & membranes. The oval depressions seen here are the sites of the nuclei. Magnification x100 at 35mm size. Microcosmos P 118 fig.6.17.
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