Phospho-SEK1/MKK4 (Ser257) (C5) rabbit mAb APC Conjugate

Catalog #: 2369
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100 Tests(2369) $299.00
10 Tests(2369S) $99.00
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20 μL is enough antibody for at least 20 Western blots.

Product Overview


SEK1, in cooperation with MKK7, activates JNK by tyrosine phosphorylation in response to cellular stress signals, including osmotic stress, DNA damage, cytokines, and heat shock (1). SEK1 itself is activated by serine phosphorylation by MAP3Ks, including MEKK1, MLKs, ASK1, and TAK1 (2). In response to TNFα stimulation in melanoma cells, filamin interacts with SEK1 as a scaffold protein (3). SEK1 plays an important role in T cell signaling pathways. Both SEK1-dependent and independent pathways operate for SAPK activation in response to different cellular stresses and stimuli (4). SEK1 also plays an important role in embryonic development. SEK1 may activate c-Jun and c-Fos during mammalian embryonic liver development.

Product Details

Product Details
Specification Description
Applications Flow Cytometry
Clone SEK1MKK4S257-C5
Format APC
Validated Reactivity Human, Mouse, Rat, Monkey
Cross Reactivity Predicted to work with mouse, rat and other homologues.
Clonality Monoclonal
Immunogen A synthetic phospho-peptide corresponding to residues surrounding Ser257 of human phospho SEK1/MKK4
Formulation 1X PBS, 0.09% NaN3, 0.2% BSA
Isotype Rabbit IgGk
Preparation Protein A+G
Recommended Usage For flow cytometric staining, the suggested use of this reagent is 5 µL per million cells or 5 µL per 100 µL of staining volume. It is recommended that the reagent be titrated for optimal performance for each application. See product image legends for additional information.
Storage 2-8ºC
Pseudonyms Dual specificity mitogen-activated protein kinase kinase 4, MAP kinase kinase 4, MAPKK4, JNK-activating kinase 1, MEK4, SAPKK1, JNKK1, PRKMK4, MAP2K4, SERK1, SKK1
Uniprot ID P45985
References 1. Tibbles LA, et al., (1996) The EMBO Journal. 15:7026-7035.
2. Nishina H, et al., (1997) Nature. 385:350-353.
3. Hu L, et a., (2019) The JNK Pathway in Drug Resistance. Targeting Cell Survival Pathways to Enhance Response to Chemotherapy. 87-100.
4. Nishina H, et al. (1999) Development. 126:505-516.


Cell Culture Products
Flow cytometric analysis of 293T cells treated with lambda phosphatase (red) or treated with UV (100 mJ/cm^2)+TPA (200nM, 1 hr recovery ; green) using Phospho-SEK1/MKK4 (Ser257) (C5) Rabbit mAb (APC Conjugate) SEK1MKK4S257-C5#2369, or concentration-matched Rabbit (G9) mAb IgG Isotype Control (APC Conjugate) #2144 for cells treated with lambda phosphatase (black) or treated with UV+TPA (blue).

Associated Products