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. Author manuscript; available in PMC: 2010 Mar 16.
Published in final edited form as: Cell Prolif. 2006 Aug;39(4):261–279. doi: 10.1111/j.1365-2184.2006.00388.x

Figure 7. Cyclin B1 and p21CIP1 expression during G2/M-phase correlate with ERK activity.

Figure 7

Cells synchronized in G1/S were released back into the cell cycle and treated with the indicated dose of EGF (a) or PMA (b). Immunoblot analysis shows the level of ppERK1/2 (top panel), cyclin B1, and p21CIP1 (middle panels) expression. The expression of α-tubulin (lower panel) is shown for a protein loading control.