Inhibitory activity of 7g, 8e, and 8l against CARM1 using PABP1, CA150, SMB, and histone H3 as substrates, and against a panel of PRMTs (PRMT1, PRMT3, PRMT5, and PRMT6) using indicated histone and/or non-histone substrates. The fluorographs are shown in the left panels, and the tritium count for each band is depicted in the right panels.