NFkB-p100: a transcription factor of the nuclear factor-kappaB ( NFkB) group. Precursor of the p52 subunit of the nuclear factor NF-kappa-B, which binds to the kappa-B consensus sequence 5'-GGRNNYYCC-3', located in the enhancer region of genes involved in immune response and acute phase reactions. The precursor protein itself does not bind to DNA. LT-beta receptor agonists and LPS induce NF-kappaB/p100 processing to p52 at the level of the ribosome. There are five NFkB proteins in mammals (RelA/NFkB-p65, RelB, c-Rel, NF-_B1/NFkB-p105, and NF-_B2/NFkB-p100). They form a variety of homodimers and heterodimers, each of which activates its own characteristic set of genes. Two spliced isoforms have been identified. Isoform p49 is a subunit of the NF-kappa-B protein complex, which stimulates the HIV enhancer in synergy with p65.
Protein type: Transcription factor; Oncoprotein; DNA-binding
Chromosomal Location of Human Ortholog: 10q24
Cellular Component: Bcl3/NF-kappaB2 complex; nucleoplasm; cytoplasm; nucleus; cytosol
Molecular Function: protein binding; transcription coactivator activity; chromatin binding; transcription factor activity
Biological Process: spleen development; I-kappaB kinase/NF-kappaB cascade; extracellular matrix organization and biogenesis; transcription, DNA-dependent; MyD88-independent toll-like receptor signaling pathway; follicular dendritic cell differentiation; rhythmic process; negative regulation of transcription from RNA polymerase II promoter; toll-like receptor 3 signaling pathway; toll-like receptor 2 signaling pathway; activation of NF-kappaB transcription factor; toll-like receptor 10 signaling pathway; toll-like receptor 5 signaling pathway; MyD88-dependent toll-like receptor signaling pathway; regulation of transcription, DNA-dependent; response to cytokine stimulus; toll-like receptor signaling pathway; germinal center formation; positive regulation of interferon type I production; innate immune response; positive regulation of transcription from RNA polymerase II promoter; toll-like receptor 9 signaling pathway; inflammatory response; toll-like receptor 4 signaling pathway
Disease: Immunodeficiency, Common Variable, 10
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