Sequence of this protein is as follows: TGAGEFQGQL LGTIAFMAPE VLRGQQYGRS CDVWSVGCAI IEMACAKPPW NAEKHSNHLA LIFKIASATT APSIPSHLSP GLRDVALRCL ELQPQDRPPS RELLKHPVFR TTW
Mitogen-activated protein kinase (MAPK) signaling cascades include MAPK or extracellular signal-regulated kinase (ERK), MAPK kinase (MKK or MEK), and MAPK kinase kinase (MAPKKK or MEKK). MAPKK kinase/MEKK phosphorylates and activates its downstream protein kinase, MAPK kinase/MEK, which in turn activates MAPK. The kinases of these signaling cascades are highly conserved, and homologs exist in yeast, Drosophila, and mammalian cells. MEKK1 can phosphorylate and activate MAPKK 1 and MAPKK 2 (MEK1/MEK2) which leads to phosphorylation of MAP kinases. It is also a highly efficient activator of the JNK cascade. The protein contains a putative 1 RING-type zinc finger and 1 SWIM-type zinc finger.
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Protein Aliases: MAP/ERK kinase kinase 1; MAPK/ERK kinase kinase 1; MEK kinase 1; MEKK 1; mitogen activated protein kinase kinase kinase 1; Mitogen-activated protein kinase kinase kinase 1; mitogen-activated protein kinase kinase kinase 1, E3 ubiquitin protein ligase
Gene Aliases: MAP3K1; MAPKKK1; MEKK; MEKK 1; MEKK1; SRXY6
Molecular Function: non-receptor serine/threonine protein kinase