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. 2010 May 3;285(27):20904–20914. doi: 10.1074/jbc.M109.098558

FIGURE 2.

FIGURE 2.

MLL5 is phosphorylated at Ser/Thr residues at G2/M phase. A, alkaline phosphatase treatment of G2/M-arrested HeLa cell extract converted MLL5 to a faster migrating form that ran to the same migrating position as in the asynchronous cell extract. CIP, calf intestinal alkaline phosphatase. B, endogenous MLL5 was immunoprecipitated (IP) from asynchronous or G2/M-arrested HeLa cell extracts. Phosphorylated MLL5 (arrowheads) is present at G2/M phase and can be detected by anti-phospho-Ser/Thr but not anti-phospho-Tyr antibodies.