The NF-κB transcription factors are presented inactive in the cytoplasm by inhibitor protein IκB. In response to stimuli such as UV light or inflammatory cytokines, phosphorylation and subsequent degradation of IκB, allows for nuclear translocation of NF-κ B where it functions as transcription factor. IκB is phosphorylated by a serine kinase, IκB kinase (IKK). The IKK consists of three subunits, IKKα and IKKβ are the catalytic, IKKγ is a regulatory subunit. IKKα and its upstream kinase, NIK are the key kinases in the activation of the alternate or the non-canonical NFκB pathway. IKKα has been reported to function independent of either IKKβ or IKKγ in activation of NF-κB. IKKα also shows functions other than activation of NF-κ B. It binds the promoters of estrogen-responsive genes, Cyclin D1 and c-myc Anti-IKKα?detects IKKα?(85 kDa) and has no cross-reactivity with IKKβ?or IKKγ.
Immunogen
synthetic peptide corresponding to amino acids 699-715 of human IκB Kinase α (IKK α) (C2). This sequence contains one amino acid substitution with the mouse sequence.
Application
Anti-IKK α subunit may be used for detection by immunoblotting at a recommended concentration of 1 μg/mL or 1:500 dilution using HeLa whole cell lysates.
Physical form
Solution in phosphate buffered saline containing 0.02% sodium azide.
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Activation of the transcription factor NF-kappaB by tumor necrosis factor (TNF) and interleukin-1 (IL-1) requires the NF-kappaB-inducing kinase (NIK). In a yeast two-hybrid screen for NIK-interacting proteins, we have identified a protein kinase previously known as CHUK. Overexpression of CHUK
The non-canonical NF-κB pathway is an important arm of NF-κB signaling that predominantly targets activation of the p52/RelB NF-κB complex. This pathway depends on the inducible processing of p100, a molecule functioning as both the precursor of p52 and a
Cold Spring Harbor perspectives in biology, 2(3), a000158-a000158 (2010-03-20)
The IKK kinase complex is the core element of the NF-kappaB cascade. It is essentially made of two kinases (IKKalpha and IKKbeta) and a regulatory subunit, NEMO/IKKgamma. Additional components may exist, transiently or permanently, but their characterization is still unsure.
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Science (New York, N.Y.), 293(5534), 1495-1499 (2001-08-25)
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