Article
Purification and identification of a growth factor produced by Paramecium tetraurelia.
Biochemical and biophysical research communications - 31 Jul 1990
Tanabe H, Nishi N, Takagi Y, Wada F, Akamatsu I, Kaji K
Abstract excerpt
We previously reported that the jumyo mutant of a cilate protozoan Paramecium tetraurelia excretes into the medium a factor which promotes its own cell division. Here, the factor was purified to electrophoretic homogeneity through a series of liquid chromatographic procedures. This substance is a protein with a molecular weight of 17,000 which at concentrations of 1 X 10(-9) M (17 ng/ml) or more results in the...
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