Phospho-NF-κB p65 (Ser529) Antibody #96874
- WB
Supporting Data
| REACTIVITY | H |
| SENSITIVITY | Endogenous |
| MW (kDa) | 65 |
| SOURCE | Rabbit |
Application Key:
- WB-Western Blotting
Species Cross-Reactivity Key:
- H-Human
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
Storage
Protocol
Specificity / Sensitivity
Phospho-NF-κB p65 (Ser529) Antibody recognizes endogenous levels of NF-κB p65 protein only when phosphorylated at Ser529.
Species Reactivity:
Human
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser529 of human NF-κB p65 protein. Antibodies are purified by peptide affinity chromatography.
Background
Transcription factors of the nuclear factor κB (NF-κB)/Rel family play a pivotal role in inflammatory and immune responses (1,2). There are five family members in mammals: RelA, c-Rel, RelB, NF-κB1 (p105/p50), and NF-κB2 (p100/p52). Both p105 and p100 are proteolytically processed by the proteasome to produce p50 and p52, respectively. Rel proteins bind p50 and p52 to form dimeric complexes that bind DNA and regulate transcription. In unstimulated cells, NF-κB is sequestered in the cytoplasm by IκB inhibitory proteins (3-5). NF-κB-activating agents can induce the phosphorylation of IκB proteins, targeting them for rapid degradation through the ubiquitin-proteasome pathway and releasing NF-κB to enter the nucleus where it regulates gene expression (6-8). NIK and IKKα (IKK1) regulate the phosphorylation and processing of NF-κB2 (p100) to produce p52, which translocates to the nucleus (9-11).
Phosphorylation of NF-κB p65 by casein kinase II occurs following disassociation of NF-κB and IκB induced by cytokines, such as TNF-α (12).
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- Whiteside, S.T. et al. (1997) EMBO J 16, 1413-26.
- Traenckner, E.B. et al. (1995) EMBO J 14, 2876-83.
- Scherer, D.C. et al. (1995) Proc Natl Acad Sci USA 92, 11259-63.
- Chen, Z.J. et al. (1996) Cell 84, 853-62.
- Senftleben, U. et al. (2001) Science 293, 1495-9.
- Coope, H.J. et al. (2002) EMBO J 21, 5375-85.
- Xiao, G. et al. (2001) Mol Cell 7, 401-9.
- Wang, D. et al. (2000) J Biol Chem 275, 32592-7.
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