Source:http://linkedlifedata.com/resource/umls/id/C0167954
NCI: Interacting with p65 (RELA), widely expressed 36-38kDa unphosphorylated cytoplasmic ANK-repeat human I Kappa B Proteins A/B/E (NFKBI Family) inhibit NF-Kappa-B, trapping it in the cytoplasm. By complexing with NFKB, IKBs regulate NFKB transcription in cell adhesion, immune and proinflammatory responses, apoptosis, differentiation, and growth. Cytokine-activated serine phosphorylation of IKBs by IKBKA/IKBKB disables the NFKB inhibition by dissociation; promotes polyubiquitinated proteasome-dependent IKB degradation; and allows NFKB nuclear translocation, binding at kappa-B DNA motifs, and target gene transcription. (NCI),MSH: A family of inhibitory proteins which bind to the REL PROTO-ONCOGENE PROTEINS and modulate their activity. In the CYTOPLASM, I-kappa B proteins bind to the transcription factor NF-KAPPA B. Cell stimulation causes its dissociation and translocation of active NF-kappa B to the nucleus.