Western blot analysis of Cdc2 p34 phosphorylation expression in HeLa whole cell lysates (A-C). Blots were probed with p-Cdc2 p34 (Thr 14/Tyr 15)-R: sc-12340-R preincubated with cognate phosphorylated (A) or cognate unphosphorylated (B) peptide and Cdc2 p34 (H-297): sc-747 (C).