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Phospho-TAK1 (Thr187) Antibody #4536

Filter:
  • WB
Western Blotting Image 1: Phospho-TAK1 (Thr187) Antibody
Western blot analysis of extracts from 293IL-1R cells, untreated or treated with IL-1beta and Calyculin A for the indicated times, using Phospho-TAK1 (Thr187) Antibody.

To Purchase # 4536

Supporting Data

REACTIVITY H
SENSITIVITY Endogenous
MW (kDa) 82
SOURCE Rabbit
Application Key:
  • WB-Western Blotting 
Species Cross-Reactivity Key:
  • H-Human 
  • Related Products

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000

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

Specificity / Sensitivity

Phospho-TAK1 (Thr187) Antibody detects endogenous levels of TAK1 only when phosphorylated at threonine 187.

Species Reactivity:

Human

The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

Species predicted to react based on 100% sequence homology:

Mouse, Rat, Chicken, Xenopus, Zebrafish, Bovine

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr187 of human TAK1. Antibodies are purified by protein A and affinity chromatography.

Background

TAK1 is a mitogen-activated protein kinase kinase kinase that can be activated by TGF-β, bone morphogenetic protein, and other cytokines, including IL-1 (1,2). In vivo activation of TAK1 requires association with TAK1 binding protein 1 (TAB1), which triggers phosphorylation of TAK1 (3,4). Another adaptor protein, TAB2, links TAK1 with TRAF6 and mediates TAK1 activation upon IL-1 stimulation (5). Once activated, TAK1 phosphorylates MAPK kinases MKK4 and MKK3/6, which activate p38 MAPK and JNK, respectively. In addition, TAK1 activates the NF-κB pathway by interacting with TRAF6 and phosphorylating the NF-κB inducing kinase (NIK) (2).

TAK1 activation requires multiple phosphorylations in its activation loop. Mutation of Thr187 and Thr184, residues located in the activation loop of TAK1, impairs phosphorylation of both TAK1 and TAB1 and reduces the kinase activity of TAK1, suggesting that autophosphorylation of these residues is necessary for TAK1 activation (4).

Pathways

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