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. 1987;95(3):175-81.
doi: 10.1007/BF00330348.

The organization of the mammalian kinetochore: a scanning electron microscope study

J B Rattner

The organization of the mammalian kinetochore: a scanning electron microscope study

J B Rattner. Chromosoma. 1987.

Abstract

A procedure has been developed for scanning electron microscopy that enables the visualization of kinetochores along the surface of isolated chromosomes of the Indian muntjac. Indirect immunofluorescence and thin section analysis of the kinetochores of those isolated chromosomes verified that these structures retained in vivo composition and morphology during the isolation procedure. In scanning electron micrographs the outer surface of the outer kinetochore plate can be visualized as a series of fibers 25-30 mn in diameter that are arranged across the plate. These images are comparable to those obtained by whole mount transmission electron microscopic procedures (Rattner 1986) and are compatible with a model of the kinetochore in which chromatin fiber from the body of the chromosome extend to the outer kinetochore plate.

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