NFKB1

1MDI, 1MDJ, 1MDK, 1NFI, 1SVC, 2DBF, 2O61, 3GUT479018033ENSG00000109320ENSMUSG00000028163P19838P25799NM_001165412NM_003998NM_001319226NM_008689NP_001158884NP_001306155NP_003989NP_001158884.1NP_001306155.1NP_032715Nuclear factor NF-kappa-B p105 subunit is a protein that in humans is encoded by the NFKB1 gene.1bfs: STRUCTURE OF NF-KB P50 HOMODIMER BOUND TO A KB SITE1ikn: IKAPPABALPHA/NF-KAPPAB COMPLEX1le5: Crystal structure of a NF-kB heterodimer bound to an IFNb-kB1le9: Crystal structure of a NF-kB heterodimer bound to the Ig/HIV-kB siti1lei: The kB DNA sequence from the HLV-LTR functions as an allosteric regulator of HIV transcription1nfi: I-KAPPA-B-ALPHA/NF-KAPPA-B COMPLEX1nfk: STRUCTURE OF THE NUCLEAR FACTOR KAPPA-B (NF-KB) P50 HOMODIMER1ooa: CRYSTAL STRUCTURE OF NF-kB(p50)2 COMPLEXED TO A HIGH-AFFINITY RNA APTAMER1svc: NFKB P50 HOMODIMER BOUND TO DNA1u36: Crystal structure of WLAC mutant of dimerisation domain of NF-kB p50 transcription factor1u3j: Crystal structure of MLAV mutant of dimerisation domain of NF-kB p50 transcription factor1u3y: Crystal structure of ILAC mutant of dimerisation domain of NF-kB p50 transcription factor1u3z: Crystal structure of MLAC mutant of dimerisation domain of NF-kB p50 transcription factor1u41: Crystal structure of YLGV mutant of dimerisation domain of NF-kB p50 transcription factor1u42: Crystal structure of MLAM mutant of dimerisation domain of NF-kB p50 transcription factor1vkx: CRYSTAL STRUCTURE OF THE NFKB P50/P65 HETERODIMER COMPLEXED TO THE IMMUNOGLOBULIN KB DNA2dbf: Solution structure of the Death domain in human Nuclear factor NF-kappa-B p105 subunit2i9t: Structure of NF-kB p65-p50 heterodimer bound to PRDII element of B-interferon promoter Nuclear factor NF-kappa-B p105 subunit is a protein that in humans is encoded by the NFKB1 gene. This gene encodes a 105 kD protein which can undergo cotranslational processing by the 26S proteasome to produce a 50 kD protein. The 105 kD protein is a Rel protein-specific transcription inhibitor and the 50 kD protein is a DNA binding subunit of the NF-kappaB (NF-κB) protein complex. NF-κB is a transcription factor that is activated by various intra- and extra-cellular stimuli such as cytokines, oxidant-free radicals, ultraviolet irradiation, and bacterial or viral products. Activated NF-κB translocates into the nucleus and stimulates the expression of genes involved in a wide variety of biological functions; over 200 known genes are targets of NF-κB in various cell types, under specific conditions. Inappropriate activation of NF-κB has been associated with a number of inflammatory diseases while persistent inhibition of NF-κB leads to inappropriate immune cell development or delayed cell growth. Model organisms have been used in the study of NFKB1 function. A conditional knockout mouse line, called Nfkb1tm1a(KOMP)Wtsi was generated as part of the International Knockout Mouse Consortium program — a high-throughput mutagenesis project to generate and distribute animal models of disease to interested scientists. Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion. Twenty five tests were carried out on mutant mice and six significant abnormalities were observed. Female homozygotes had a decreased respiratory quotient, increased circulating alkaline phosphatase level and increased leukocyte cell number. Male homozygotes showed an increased susceptibility to Salmonella infection, while homozygotes of both sex had decreased IgG1 and decreased regulatory T cell and NK cell numbers. NFKB1 has been shown to interact with: This article incorporates text from the United States National Library of Medicine, which is in the public domain.