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Background
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NF-kappa-B is a pleiotropic transcription factor which is present in almost all cell types and is involved in many biological processed such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF-kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post-translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF-kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I-kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. NF-kappa-B heterodimeric RelB-p50 and RelB-p52 complexes are transcriptional activators. RELB neither associates with DNA nor with RELA/p65 or REL. Stimulates promoter activity in the presence of NFKB2/p49.
Alias Symbols: IREL, I-REL, REL-B, RELB
Protein Interaction Partner: NFKB2, NFKB1, BCL3, NEK6, DNMT1, DAXX, MT1M, GSK3B, CTSL, CDK1, BUD31, UQCRFS1, MTAP, COMMD9, COMMD5, MALT1, COMMD1, COMMD8, COMMD4, COMMD10, COMMD2, UBC, RAC1, SUZ12, RELA, EZH2, DPF2, YY1, CBX3, EHMT2, NFKBIA, KPNA6, SMARCA4, SMARCE1, SMARCC2, SMARCC1,
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