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        Immunocytochemical localization of the elongation factor Tu in E. coli cells

        Author
        Schilstra, M.
        Slot, J.W.
        Van der Meide, P.H.
        Posthuma, G.
        Cremers, A.F.M.
        Bosch, L.
        Attention
        2299/3897
        Abstract
        The localization of the elongation factor Tu (EF-Tu) in ultrathin cryosections of E. coli cells was determined with the electron microscope using a highly specific immunological labellin technique. EF-Tu is distributed almost homogeneously throughout the cytoplasm. Although it has often been suggested that EF-Tu could be part of a putative prokaryotic cytoskeleton, we did not find any evidence for supramolecular assemblies, such as fibres or filaments, containing a large amount of EF-Tu. EF-Tu was not observed in association with the outer cell membrane and periplasmic space. A topological relationship with the inner membrane is not apparent in our micrographs. In cells in which the EF-Tu level is raised significantly, the protein piles up in discrete cell regions.
        Publication date
        1984
        Published in
        FEBS Letters
        Published version
        https://doi.org/10.1016/0014-5793(84)80164-7
        Other links
        http://hdl.handle.net/2299/3897
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