Application
Western blot analysis of MAP2K4 (arrow) using rabbit polyclonal MAP2K4 Antibody (S257) .293 cell lysates (2 ug/lane) either nontransfected (Lane 1) or transiently transfected with the MAP2K4 gene (Lane 2) (Origene Technologies).| Product Name | MEKK4 (MAP2K4) Antibody (S257) |
|---|---|
| Antibody Type | Primary Antibodies |
| Antigen Alias | MAP2K4; JNKK1; MEK4; MKK4; PRKMK4; SEK1; SERK1; SKK1; Dual specificity mitogen-activated protein kinase kinase 4; JNK-activating kinase 1; MAPK/ERK kinase 4; SAPK/ERK kinase 1; Stress-activated protein kinase kinase 1; c-Jun N-terminal kinase kinase 1 |
| Clonality | Polyclonal |
|---|---|
| Isotype | Ig |
| Host Species | Rabbit |
| Tested Applications | WB |
| WB:1:100~500 |
|
| Species Reactivity | Human |
| Concentration | 1mg/ml |
| Gene Synonyms | JNKK1 MEK4 MKK4 PRKMK4 SEK1 SERK1 |
|---|---|
| Alternative Names | MAP2K4 JNKK1 MEK4 MKK4 PRKMK4 SEK1 SERK1 SKK1 Dual specificity mitogen-activated protein kinase kinase 4 JNK-activating kinase 1 MAPK/ERK kinase 4 SAPK/ERK kinase 1 Stress-activated protein kinase kinase 1 c-Jun N-terminal kinase kinase 1 |
| Molecular Weight(MW) | 44288 Da |
| Function | Dual specificity protein kinase which acts as an essential component of the MAP kinase signal transduction pathway Essential component of the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway. With MAP2K7/MKK7, is the one of the only known kinase to directly activate the stress-activated protein kinase/c-Jun N-terminal kinases MAPK8/JNK1, MAPK9/JNK2 and MAPK10/JNK3. MAP2K4/MKK4 and MAP2K7/MKK7 both activate the JNKs by phosphorylation, but they differ in their preference for the phosphorylation site in the Thr-Pro-Tyr motif. MAP2K4 shows preference for phosphorylation of the Tyr residue and MAP2K7/MKK7 for the Thr residue. The phosphorylation of the Thr residue by MAP2K7/MKK7 seems to be the prerequisite for JNK activation at least in response to proinflammatory cytokines, while other stimuli activate both MAP2K4/MKK4 and MAP2K7/MKK7 which synergistically phosphorylate JNKs. MAP2K4 is required for maintaining peripheral lymphoid homeostasis. The MKK/JNK signaling pathway is also involved in mitochondrial death signaling pathway, including the release cytochrome c, leading to apoptosis. Whereas MAP2K7/MKK7 exclusively activates JNKs, MAP2K4/MKK4 additionally activates the p38 MAPKs MAPK11, MAPK12, MAPK13 and MAPK14 |
| Tissue Specificity | Abundant expression is seen in the skeletal muscle. It is also widely expressed in other tissues |
| Cellular Localization | Cytoplasm (By similarity). Nucleus (By similarity) |
| Entrez Gene | 6416 |
|---|
Application
Western blot analysis of MAP2K4 (arrow) using rabbit polyclonal MAP2K4 Antibody (S257) .293 cell lysates (2 ug/lane) either nontransfected (Lane 1) or transiently transfected with the MAP2K4 gene (Lane 2) (Origene Technologies).| Application Notes | WB:1:100~500 |
|---|
| Form | Liquid |
|---|---|
| Storage Instructions | For short-term storage, store at 4° C. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles. |
| Storage Buffer | Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification |
