Species predicted to react based on 100% sequence homology:Mouse, Rat
Specificity / Sensitivity
Phospho-MKK7 (Ser171/Thr275) Antibody detects endogenous levels of MKK7 phosphorylated at serine 271 and threonine 275. This antibody does not cross-react with phosphorylated SEK1/MKK4 or other phosphorylated MAP kinase kinases.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser271/Thr275 of human MKK7. Antibodies are purified by protein A and peptide affinity chromatography.
Background
MKK7 is a MAP kinase kinase that serves as a specific activator of JNK/SAPK pathway (1,2). MKK7 is activated strongly by TNFα, as well as other environmental stresses, whereas SEK1/MKK4, which activates both p38 and JNK/SAPK pathways, is not activated by TNFα (2). Sequence alignment of the activation loop of the MAP kinase kinase family members indicates that Ser271 and Thr275 are potential phosphorylation sites that are crucial for the kinase acivity.