Description | KappaB ras2 Antibody: KappaB ras-1 (κ,B-ras-1) and kappaB-ras-2 are two small proteins that similar to Ras-like small GTPases that associate with Iκ,B (Iκ,B), an inhibitor of the transcription factor NF-κ,B. Iκ,B exists in two homologous forms, Iκ,B-alpha and Iκ,B-beta, although Iκ,B-beta contains a unique 47-amino acid region within its ankyrin domain. While inactive Iκ,B-alpha-NF-κ,B complexes can shuttle in and out of the nucleus, Iκ,B-beta-NF-κ,B complexes are retained exclusively in the cytoplasm. It is suggested that kappaB-ras proteins preferentially bind to the Iκ,B-beta form through this unique insert within the ankyrin region, thus modulating the cellular location of Iκ,B-beta and regulating the rate of degradation of Iκ,B-beta. This antibody is specific for kappaB-ras2 and has no cross-reactivity to kappaB-ras1. Target Information: Atypical Ras-like protein that acts as a potent regulator of NF-kappa-B activity by preventing the degradation of NF-kappa-B inhibitor beta (NFKBIB) by most signals, explaining why NFKBIB is more resistant to degradation (By similarity). |