Tsitologiia 2004 Jan 01;463:249-56.

[A comparative level of expression of some proteins in XL2 cell synchronized on different phases of cell cycle].

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Cells of cultured line XL2 (Xenopus laevis) were synchronized by a combine effect of serum deprivation, aphidicolin, nocodazole and ALLN treatments. Four fractions were prepared, with maximum percentage of cells being in G1, S and G2 phases of cell cycle, and in mitosis, respectively. Comparative levels of six different proteins (beta-tubulin, DNA topoisomerase IIa, Xenopus Aurora A kinase pEg2, kinesin-like motor protein X1Eg5, and two members of condensis family proteins pEg7 (XCAP D2) and XCAP E were detected by quantitative Western blot analysis of these fractions. We used a new method of mathematic processing of data that commonly provides a possibility to calculate a comparative quantity of proteins in hypothetically "clean" fraction composed of cells being in the same phase of the cell cycle. This method makes it possible to use even partly synchronized cell cultures for analysis of changes in protein quantity, provided a precede determination of cell population composition is made.

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Species referenced: Xenopus laevis
Genes referenced: aurka ncapd2