CST, 4067S, Erk3 Antibody

Polyclonal Antibody for studying Erk3. Validated for Western Blotting. Highly specific and rigorously validated in-house, Erk3 Antibody (CST #4067) is ready to ship. Product Usage Information Western Blotting: 1:1000 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting Specificity / Sensitivity Erk3 Antibody detects endogenous levels of total Erk3 protein. This antibody does not cross-react with other other Erk family members. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Leu410 of human Erk3. Antibodies are purified by protein A and peptide affinity chromatography. Background Erk3, also known as MAPK6 or p97 MAPK, is almost 50% identical to Erk1/2 at the kinase domain located in its amino-terminal region (1). However, Erk3 is distinguished from other MAP kinases in that it lacks the conserved TXY motif in its activation loop, possessing instead an SEG motif (1,2). Phosphorylation at Ser189 in the SEG motif has been reported (2,3). With limited information about its upstream kinases and downstream substrates, the significance of this phosphorylation remains to be elucidated (3,4). Erk3 is an inherently unstable protein, rapidly degraded through amino-terminal ubiquitination and proteasome degradation (3,5). A site-specific cleavage, depending on a short stretch of acidic residues of Erk3, might regulate its translocation from the Golgi/ERGIC to the nucleus during the cell cycle (6). Accumulating evidence suggests that Erk3 is involved in cell differentiation (1,3,6). Alternate Names DKFZp686F03189; ERK-3; ERK3; Extracellular signal-regulated kinase 3; extracellular signal-regulated kinase, p97; HsT17250; MAP kinase 6; MAP kinase isoform p97; MAPK 6; MAPK6; Mitogen-activated protein kinase 6; MK06; p97-MAPK; p97MAPK; PRKM6; protein kinase, mitogen-activated 5; protein kinase, mitogen-activated 6 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 105 SOURCE: Rabbit