Phospho-SEK1/MKK4 (Ser257) (C36C11) Rabbit mAb (BSA and Azide Free) #75450

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Supporting Data

REACTIVITY	H M R Mk
SENSITIVITY	Endogenous
MW (kDa)	44
Source/Isotype	Rabbit

Application Key:

WB-Western Blotting
F-Flow Cytometry

Species Cross-Reactivity Key:

H-Human
M-Mouse
R-Rat
Mk-Monkey

Product Information

Product Usage Information

This product is the carrier free version of product #4514. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol.

This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN or CUT&Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us. Optimal dilutions/concentrations should be determined by the end user.

BSA and Azide Free antibodies are quality control tested by size exclusion chromatography (SEC) to determine antibody integrity.

Formulation

Supplied in 1X PBS (10 mM Na₂HPO₄, 3 mM KCl, 2 mM KH₂PO₄, and 140 mM NaCl (pH 7.8)). BSA and Azide Free.

For standard formulation of this product see product #4514

Storage

Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.

Specificity / Sensitivity

Phospho-SEK1/MKK4 (Ser257) (C36C11) Rabbit mAb (BSA and Azide Free) detects endogenous levels of SEK1/MKK4 phosphorylated at Ser257 .

Species Reactivity:

Human, Mouse, Rat, Monkey

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser257/Thr261 of human SEK1/MKK4.

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).

Database Links

UniProt ID: P45985

Entrez-Gene Id: 6416

Limited Uses

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For Research Use Only. Not For Use In Diagnostic Procedures.

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U.S. Patent No. 7,429,487, foreign equivalents, and child patents deriving therefrom.

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