GO analysis of regulated proteins and phosphopeptides. Significant GO terms (P < .05) of proteins regulated by phosphorylation (blue) or increased protein abundance in FLB1 (red) and FLA2 (green). GO terms are grouped according to biologic process, molecular function, and cellular component, and the number of regulated proteins versus the background of all identified proteins is given. Significant terms include protein serine/threonine kinase activity, chromatin binding, RNA processing, cysteine protease inhibitor activity, and nuclear pore.