The NF-kB/Rel transcription factors are present in the cytosol in an inactive state, complexed with the inhibitory IkB proteins. Most agents that activate NF-kB do so through a common pathway based on phosphorylation- induced, proteasome-mediated degradation of IkB. The key regulatory step in this pathway involves activation of a high molecular weight IkB kinase (IKK) complex whose catalysis is generally carried out by three tightly associated IKK subunits. IKKalpha and IKKbeta serve as the catalytic subunits of the kinase and IKKgamma serves as the regulatory subunit. Activation of IKK depends upon phosphorylation at Ser177 and Ser181 in the activation loop of IKKbeta (Ser176 and Ser180 in IKKalpha), which causes conformational changes, resulting in kinase activation.
Specificity:Human
Intended Use:The IKK Isoform Antibody Sampler BioAssay™ Kit provides an economical means to investigate NFkappaB signaling within the cell. The kit contains primary and secondary antibodies to perform two Western blots with each antibody.
Applications:Suitable for use in Western Blot. Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:2000Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
