description
Mitogen-activated protein kinase kinase MAP2K1 (also known as MEK1) is a dual threonine and tyrosine recognition kinase that phosphorylates and activates MAPK3 (ERK1) (Ohren et al. 2004; Roskoski 2012a)

external resources
NCBI:1269504
REACTOME:R-HSA-110056

genes
CDK1 , IL6 , IL6R , IL6ST , JAK1 , JAK2 , MAPK3 , MAP2K1 , PTPN11 , TYK2 ,