Vector Biolabs ADENOVIRUS-ERK1

Vector Biolabs The activation of signal transduction pathways by growth factors, hormones and neurotransmitters is mediated through two closely related MAP kinases, p44 and p42, which are encoded by ERK 1 and ERK 2, respectively. Both proteins are regulated by dual phosphorylation on specific tyrosine and threonine residues mapping within a characteristic Thr-Glu-Tyr motif. In response to activation, both MAP kinases phosphorylate downstream components on serine and threonine. Upstream MAP kinase regulators include MAP kinase kinase (MEK), MEK kinase and Raf-1. ERK 3 is a MAP kinase-related protein. The human homolog of ERK 3 has also been cloned and shown to encode a 97 kDa protein. ERK 5 has been identified as an 815 amino acid protein that functions as a substrate for MEK-5, but not for MEK-1 or MEK-2. ERK 6 (also designated SAPK3) is highly expressed in human skeletal muscle and appears to function as a signal transducer during differentiation of myoblasts to myotubes. - FLSVL (Additional S&H Or Hazmat Fees May Apply)