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Interaction of Mason-Pfizer monkey virus matrix protein with plasma membrane.
Front Microbiol
June 2014
Laboratory of NMR Spectroscopy, Institute of Chemical Technology, Prague Czech Republic.
Budding is the final step of the late phase of retroviral life cycle. It begins with the interaction of Gag precursor with plasma membrane (PM) through its N-terminal domain, the matrix protein (MA). However, single genera of Retroviridae family differ in the way how they interact with PM.
View Article and Find Full Text PDFChinese hamster ovary cells were heated either at 45.5 degrees for 15 min or at 42 degrees for 1 hr and then were either fixed immediately or allowed to recover at 37 degrees for intervals of up to 12 hr. In addition control cells and cells heated at 45.
View Article and Find Full Text PDFThe structure and function of the centrosomes from Chinese hamster ovary (CHO) cells were investigated by electron microscopy of negatively stained wholemount preparations of cell lysates. Cells were trypsinized from culture dishes, lysed with Triton X-100, sedimented onto ionized, carbon-coated grids, and negatively stained with phosphotungstate. The centrosomes from both interphase and dividing cells consisted of pairs of centrioles, a fibrous pericentriolar material, and a group of virus-like particles which were characteristic of the CHO cells and which served as markers for the pericentriolar material.
View Article and Find Full Text PDFAntitubulin antibody was used as an immunofluorescent and immunoelectron microscopic probe to localize tubulin in components of the mitotic apparatus of rat kangaroo (strain PtK1) cells in vitro. In addition to the detection of tubulin in the spindle microtubules and centrioles, other structures were found to display specific staining including kinetochores, amorphous pericentriolar material and small virus-like particles associated with the centrioles. The kinetochores consisted of a densely stained outer layer about 400 A thick which is separated from an inner layer of the same dimension by a lightly staining middle layer.
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