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12873
SignalSlide® NF-κB p65 IHC Controls
Experimental Controls

IHC Control Slides - SignalSlide® NF-κB p65 IHC Controls, UniProt ID Q04206, Entrez ID 5970 #12873

IHC-P (paraffin) Image 1 - SignalSlide® NF-κB p65 IHC Controls

Immunohistochemical analysis of paraffin-embedded HCT 116 cell pellets, untreated (left) or treated with Human Tumor Necrosis Factor-α (hTNF-α) #8902 (right), using NF-κB p65 (D14E12) XP® Rabbit mAb #8242. Note the translocation from the cytoplasm to the nucleus upon hTNF-α treatment.

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Each control slide contains formalin fixed, paraffin-embedded HCT 116 cells, both untreated and treated with hTNF-α, that serve as a control for NF-κB p65 immunostaining.

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).

  1. Baeuerle, P.A. and Henkel, T. (1994) Annu Rev Immunol 12, 141-79.
  2. Baeuerle, P.A. and Baltimore, D. (1996) Cell 87, 13-20.
  3. Haskill, S. et al. (1991) Cell 65, 1281-9.
  4. Thompson, J.E. et al. (1995) Cell 80, 573-82.
  5. Whiteside, S.T. et al. (1997) EMBO J 16, 1413-26.
  6. Traenckner, E.B. et al. (1995) EMBO J 14, 2876-83.
  7. Scherer, D.C. et al. (1995) Proc Natl Acad Sci USA 92, 11259-63.
  8. Chen, Z.J. et al. (1996) Cell 84, 853-62.
  9. Senftleben, U. et al. (2001) Science 293, 1495-9.
  10. Coope, H.J. et al. (2002) EMBO J 21, 5375-85.
  11. Xiao, G. et al. (2001) Mol Cell 7, 401-9.
Entrez-Gene Id
5970
Swiss-Prot Acc.
Q04206
For Research Use Only. Not For Use In Diagnostic Procedures.

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalSlide is a registered trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.

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