A feedback control of cell cycle parameters in Tetrahymena.
نویسندگان
چکیده
منابع مشابه
A feedback control of cell cycle parameters in Tetrahymena
Protein and RNA contents of individual cells were measured cytophotometrically and related to the duration of individual generation times. Constant amounts of RNA per cell at division, and generation time-dependent protein contents, resulted in generation time-specific RNA/protein ratios. Experimental reduction of these ratios by inhibition of RNA synthesis stimulated premature macronuclear S p...
متن کاملIncrease in macromolecular amounts during the cell cycle of Tetrahymena: a contribution to cell cycle control.
Increases in RNA, protein and cell size were determined cytophotometrically during the cell division cycle of Tetrahymena. For these parameters different patterns were found. RNA accumulates slowly during G1 period and faster during macronuclear S. This agrees with the changing uridine incorporation rate which is at least partly related to the varying macronuclear DNA amount. Increases in prote...
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Poly(A)-containing mRNA was isolated from division synchronized populations of the ciliated protozoan, Tetrahymena pyriformis. The level of tubulin and actin mRNA at specific cell cycle stages was analyzed by hybridization to tubulin and actin cDNA probes and by gel analysis of their in vitro translation products. The pattern of fluctuation of tubulin mRNA levels was similar to that observed fo...
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چکیده ندارد.
15 صفحه اولCell cycle and apoptosis: A review
Cancer is characterized by abnormally excessive cell proliferation. Cell proliferation, the process by which a cell grows and divides to produce two daughter cells. Each of these daughter cells divides to produce two new cells, steps that are called cell cycle. Meanwhile, apoptosis is a highly regulated process of cell death, which is involved not only in the development of shape and morphogene...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1975
ISSN: 0021-9525,1540-8140
DOI: 10.1083/jcb.67.3.901