Immunogen sequence: SPRNTTLERQ TFYCVPVPGE STWVKEAYVN ANQARVSPST SYTPSRHKRS YEDDDDMDLQ PNKQKDQHAG ARQAGSVGGL QWCGEPKRLE TEASTGQ Highest antigen sequence identity to the following orthologs: Mouse - 88%, Rat - 90%. MEK1 (Mitogen activated protein kinase ki