NF-κB Control Cell Extracts #9243
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Product Information
Product Usage Information
Boil for 3 minutes prior to use. Load 20 µl of untreated and hTNF-α treated NF-κB Control Cell Extracts per lane.
Storage
Supplied in SDS Sample Buffer: 62.5 mM Tris-HCl (pH 6.8 at 25°C), 2% w/v SDS, 10% glycerol, 50 mM DTT, 0.01% w/v bromophenol blue or phenol red. Store at –20°C or –80°C for long-term storage.
Product Description
NF-κB Control Cell Extracts (HeLa untreated): Total cell extracts from HeLa cells serve as a negative control. Supplied SDS Sample Buffer.
NF-κB Control Cell Extracts (HeLa + hTNF-alpha): Total cell extracts from HeLa cells treated with Human Tumor Necrosis Factor-α (hTNF-α) #8902 serve as a positive control. Supplied SDS Sample Buffer.
NF-κB Control Cell Extracts (HeLa + hTNF-alpha): Total cell extracts from HeLa cells treated with Human Tumor Necrosis Factor-α (hTNF-α) #8902 serve as a positive control. Supplied SDS Sample Buffer.
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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