K2 (MAP kinase-activated protein kinase 2, MAPKAP-K2); Species-Reactivity: Tested on human, mouse, hamster; Posttranslational modifications: MK2-Trap recognizes unphosphorylated MK2 and Phospho-MK2 (Thr222). Specificity on Phospho-MK2 (Thr334) was not tested.