Article
Functional redundancy of the kinases MEK1 and MEK2: Rescue of the Mek1 mutant phenotype by Mek2 knock-in reveals a protein threshold effect.
Science signaling - 26 Jan 2016
Aoidi Rifdat, Maltais Annie, Charron Jean
Abstract excerpt
The mammalian genome contains two mitogen-activated protein kinase (MAPK) kinase (MEK)-encoding genes, Mek1 and Mek2. MEKs phosphorylate and activate the two extracellular signal-regulated kinase (ERK) isoforms ERK1 and ERK2. Mek1(-/-) embryos die due to placental defects, whereas Mek2(-/-) mice survive with a normal life span and fertility, suggesting that MEK1 has functions not shared by MEK2. However, most...
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