CST, 9152S, SEK1/MKK4 Antibody

Polyclonal Antibody for studying MKK4. Validated for Western Blotting,Immunoprecipitation. Highly specific and rigorously validated in-house, SEK1/MKK4 Antibody (CST #9152) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:50 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, Immunoprecipitation Specificity / Sensitivity SEK1/MKK4 Antibody detects endogenous levels of total SEK1/MKK4 protein. This antibody does not cross-react with MEK1, MEK2 or MKK3. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding the N-terminus of human SEK1/MKK4. Antibodies are purified by protein A and peptide affinity chromatography. Background SAPK/Erk kinase (SEK1), also known as MKK4 or Jun kinase kinase (JNKK), activates the MAP kinase homologues SAPK and JNK in response to various cellular stresses and inflammatory cytokines (1-3). Activation of SEK1 occurs through MEKK phosphorylation of serine and threonine residues at positions 257 and 261, respectively. Like MEK, SEK is a dual-specificity protein kinase that phosphorylates SAPK/JNK at a conserved T*PY* site in its activation loop (4). Phosphorylation by Akt at Ser80 inhibits SEK1 and suppresses stress-activated signal transduction (5). Alternate Names c-Jun N-terminal kinase kinase 1; Dual specificity mitogen-activated protein kinase kinase 4; JNK activating kinase 1; JNK-activated kinase 1; JNK-activating kinase 1; JNKK; JNKK1; MAP kinase kinase 4; MAP2K4; MAPK/ERK kinase 4; MAPKK 4; MAPKK4; MEK 4; MEK4; mitogen-activated protein kinase kinase 4; MKK4; MP2K4; PRKMK4; SAPK kinase 1; SAPK/ERK kinase 1; SAPKK-1; SAPKK1; SEK1; SERK1; SKK1; Stress-activated protein kinase kinase 1 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 44 SOURCE: Rabbit