A chemical biology toolbox to study protein methyltransferases and epigenetic signaling by Scheer, S, Ackloo, S, Medina, T, Schapira, M, Li, F, Ward, J, Lewis, A, Northrop, J, Richardson, P, Kaniskan, H, Shen, Y, Liu, J, Smil, D, McLeod, D, Zepeda-Velazquez, C, Luo, M, Jin, J, Barsyte-Lovejoy, D, Huber, K, De Carvalho, D, Vedadi, M, Zaph, C, Brown, P, Arrowsmith, C