Catalyzes the concomitant phosphorylation of a threonine and a tyrosine residue in a Thr-Glu-Tyr sequence located in MAP kinases. Activates ERK1 and ERK2 MAP kinases.1) Kevin D. Burroughs, et, al. (2003) Mol. Cancer Res ; 1: 312. Michael J. Piatelli, et, al. (2002) J. Biol. Chem ; 277: 12144 - 12150. Margaret M. Morgan, et, al. (2001) J. Immunol ; 167: 5708. Herbert Schramek, et, al. (2003) Am J Physiol Cell Physiol, ; 285: C652 - C661.
Immunogen
MEK1 (Phospho-Thr291) antibody was raised against a peptide sequence around phosphorylation site of threonine 291 (P-R-T (p) -P-G derived from Human MEK1.