Upstream / Downstream
Explore pathways related to this product.
CST Antibody Performance Guarantee
To Purchase # 1021S
Find answers on our FAQs page.
PTM information and tools available.
Phospho-NF-kappaB p105 (Ser933) Blocking Peptide #1021
Immunohistochemical analysis of paraffin-embedded human breast carcinoma, using Phospho-NF-kappaB p105 (Ser933) (178F3) Rabbit mAb (IHC Specific) #4808 in the presence of control peptide (left) or Phospho-NF-kappaB p105 (Ser933) Blocking Peptide (right).Learn more about how we get our images
Gallery: Phospho-NF-kappaB p105 (Ser933) Blocking Peptide #1021
This peptide is used to block Phospho-NF-kappaB p105 (Ser933) (178F3) Rabbit mAb (IHC Specific) #4808 reactivity.
The quality of the peptide was evaluated by reversed-phase HPLC and by mass spectrometry. The peptide blocks Phospho-NF-kappaB p105 (Ser933) (178F3) Rabbit mAb (IHC Specific) #4808 by immunohistochemistry.
Use as a blocking reagent to evaluate the specificity of antibody reactivity in immunohistochemistry protocols. For immunohistochemistry, add twice the volume of peptide as volume of antibody used in 100 μl total volume. Incubate for a minimum of 30 minutes prior to adding the entire volume to the slide. Recommended antibody dilutions can be found on the relevant product data sheet.Storage: Supplied in 20 mM potassium phosphate (pH 7.0), 50 mM NaCl, 0.1 mM EDTA, 1 mg/ml BSA and 5% glycerol. Store at –20°C.
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).
For Research Use Only. Not For Use In Diagnostic Procedures. Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.