Full-length recombinant human IKKbeta was expressed by baculovirus in Sf9 insect cells using an N-terminal GST tag.
Catalog No. I03-18G
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IKKbeta is a serine/threonine protein kinase that phosphorylates the I-kappa-B protein which is an inhibitor of the transcription factor NF-kappa-B complex. Phosphorylation of I-kappa-B protein triggers the degradation of the inhibitor via the ubiquitination pathway, thereby activating NF-kappa-B complex. The activity of IKKbeta is stimulated by TNF and IL1 and IKKbeta forms a heterodimer that interacts with NIK (1). Overexpression of catalytically inactive IKKbeta blocks cytokine-induced NF-kappa-B activation. Aspirin and sodium salicylate can specifically inhibit IKKbeta activity in vitro and in vivo by binding to IKKbeta to reduce ATP binding (2).
IKK2, IKBKB, IKKB, NFKBIKB, FLJ40509, IKK-beta, MGC131801
1. Woronicz, J D. et al: IkappaB kinase-beta: NF-kappa-B activation and complex formation with IkappaB kinase-alpha and NIK. Science 278: 866-869, 1997.
2. Yin, M.-J. et al: The anti-inflammatory agents aspirin and salicylate inhibit the activity of I-kappa-B kinase-beta. Nature 396: 77-80, 1998.
Sample Kinase Activity Plot. For specific information on a given lot, see related technical data sheet.
Sample Purity Data. For specific information on a given lot, see related technical data sheet.
Storage, Stability, and Shipping:
Store product at –70oC. For optimal storage, aliquot target into smaller quantities after centrifugation and store at recommended temperature. For most favorable performance, avoid repeated handling and multiple freeze/thaw cycles.
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