PathScan® Total NF-κB p65 Sandwich ELISA Kit #7174
Filter:
- ELISA
Supporting Data
| REACTIVITY | H M |
Application Key:
- ELISA-ELISA
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
Product Information
Product Description
CST's PathScan® Total NF-kappaB p65 Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of total NF-kappaB p65 protein. A NF-kappaB p65 antibody has been coated onto the microwells. After incubation with cell lysates, both phospho- and nonphospho-NF-kappaB p65 proteins are captured by the coated antibody. Following extensive washing, NF-kappaB p65 Antibody is added to detect both the captured phospho- and nonphospho-NF-kappaB p65 protein. Anti-mouse IgG, HRP-linked Antibody is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of optical density for this developed color is proportional to the quantity of total NF-kappaB p65 protein.
*Antibodies in kit are custom formulations specific to kit.
*Antibodies in kit are custom formulations specific to kit.
Protocol
Specificity / Sensitivity
CST's PathScan® Total NF-kappaB p65 Sandwich ELISA Kit detects endogenous levels of NF-kappaB p65 enzyme. As shown in Figure 1, using the Phospho-NF-kappaB p65 (Ser536) Sandwich ELISA Kit #7173, a significant induction of Phospho-NF-kappaB p65 (Ser536) in HeLa cells treated with TNF-alpha is detected. However, the level of NF-kappaB p65 (either untreated or treated), detected by the Total NF-kappaB p65 Sandwich ELISA Kit #7174, remains unchanged. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Species Reactivity:
Human, Mouse
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).
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- Thompson, J.E. et al. (1995) Cell 80, 573-82.
- 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.
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