Product Pathways - NF-kB Signaling
NF-κB1 p105/p50 (5D10D11) Mouse mAb #13681
|13681S||100 µl (10 western blots)||---||In Stock||---|
|13681||carrier free and custom formulation / quantity||email request|
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|W||1:1000||Human||Endogenous||50 Active form, 120 Precursor||Mouse IgG2a|
Species cross-reactivity is determined by western blot.
Applications Key: W=Western Blotting
Specificity / Sensitivity
NF-κB1 p105/p50 (5D10D11) Mouse mAb recognizes endogenous levels of total NF-κB1 protein.
Source / Purification
Monoclonal antibody is produced by immunizing animals with a recombinant fragment of human NF-κB1 protein expressed in E. coli.
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).
Following IKK-mediated phosphorylation of p105 NF-κB at multiple sites (Ser921, 923, 927, and 932) on its carboxy-terminus, β-TrCP (SCF) mediated processing produces the 50 kDa active form p50 (12,13).
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