NFKB1是核因子κB(NF-κB)家族的重要成员,编码p105蛋白,经加工后形成具有活性的p50亚基。NF-κB家族是一类广泛参与免疫、炎症、细胞增殖和凋亡调控的转录因子,其共性在于通过形成同源或异源二聚体结合DNA,调控下游靶基因表达。NFKB1主要通过与Rel家族蛋白(如RelA/p65)形成p50-RelA异源二聚体发挥作用,这种复合物是经典的NF-κB激活形式。在静息状态下,NF-κB被IκB蛋白抑制而滞留于胞质;当受到TNF-α、IL-1等刺激时,IκB被降解,NF-κB入核激活靶基因,如促炎细胞因子(IL-6、TNF-α)和抗凋亡蛋白(Bcl-2)。NFKB1的突变可能导致免疫缺陷或异常炎症反应,如杂合突变与常见可变免疫缺陷病(CVID)相关,表现为抗体产生障碍和反复感染。其功能丧失还可能影响B细胞发育和淋巴器官形成。NFKB1过表达会持续激活促炎通路,与类风湿关节炎、炎症性肠病和多种癌症(如淋巴瘤、乳腺癌)的发生发展密切相关;而表达降低则可能导致免疫应答缺陷,增加感染风险。值得注意的是,p50同源二聚体缺乏转录激活域,反而可能抑制某些炎症基因的表达,形成负反馈调节。该基因还参与氧化应激反应、昼夜节律调控等过程,并与阿尔茨海默病中神经炎症的进展相关。药物开发中常以NF-κB通路为靶点,但需谨慎平衡其促炎和抗凋亡的双重作用。
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-kappa-B (NFKB) protein complex. NFKB is a transcription regulator that is activated by various intra- and extra-cellular stimuli such as cytokines, oxidant-free radicals, ultraviolet irradiation, and bacterial or viral products. Activated NFKB translocates into the nucleus and stimulates the expression of genes involved in a wide variety of biological functions. Inappropriate activation of NFKB has been associated with a number of inflammatory diseases while persistent inhibition of NFKB leads to inappropriate immune cell development or delayed cell growth. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]
该基因编码一个105 kD的蛋白质被26S蛋白酶体产生50 kD的蛋白质,可以经过共翻译加工。所述的105kD蛋白质是相对特异性蛋白转录抑制剂和50 kD的蛋白质是NF-κ-B(NFKB)蛋白质复合物的DNA结合亚基。的NFκB是受各种内和细胞外刺激如细胞因子,不含氧化剂,自由基,紫外线照射,以及细菌或病毒产品激活的转录调节子。激活的NFκB易位到细胞核并刺激参与多种生物功能的基因的表达。 NFKB的不适当的激活已经与一些炎症性疾病,而NFκB的持续抑制导致不适当的免疫细胞发育或延迟细胞生长有瓜葛。已发现该基因编码不同亚型的两个转录变异体。 [由RefSeq的,2009年09月提供]
NFKB1基因(以及对应的蛋白质)的细胞分布位置:
NFKB1基因的本体(GO)信息:
名称 |
---|
4014 Ras signaling pathway [PATH:hsa04014] |
4010 MAPK signaling pathway [PATH:hsa04010] |
4064 NF-kappa B signaling pathway [PATH:hsa04064] |
4668 TNF signaling pathway [PATH:hsa04668] |
4066 HIF-1 signaling pathway [PATH:hsa04066] |
4071 Sphingolipid signaling pathway [PATH:hsa04071] |
4024 cAMP signaling pathway [PATH:hsa04024] |
4151 PI3K-Akt signaling pathway [PATH:hsa04151] |
4210 Apoptosis [PATH:hsa04210] |
4620 Toll-like receptor signaling pathway [PATH:hsa04620] |
4621 NOD-like receptor signaling pathway [PATH:hsa04621] |
4622 RIG-I-like receptor signaling pathway [PATH:hsa04622] |
4623 Cytosolic DNA-sensing pathway [PATH:hsa04623] |
4660 T cell receptor signaling pathway [PATH:hsa04660] |
4662 B cell receptor signaling pathway [PATH:hsa04662] |
4062 Chemokine signaling pathway [PATH:hsa04062] |
4920 Adipocytokine signaling pathway [PATH:hsa04920] |
4917 Prolactin signaling pathway [PATH:hsa04917] |
4722 Neurotrophin signaling pathway [PATH:hsa04722] |
4380 Osteoclast differentiation [PATH:hsa04380] |
5200 Pathways in cancer [PATH:hsa05200] |
5202 Transcriptional misregulation in cancers [PATH:hsa05202] |
5206 MicroRNAs in cancer [PATH:hsa05206] |
5203 Viral carcinogenesis [PATH:hsa05203] |
5212 Pancreatic cancer [PATH:hsa05212] |
5221 Acute myeloid leukemia [PATH:hsa05221] |
5220 Chronic myeloid leukemia [PATH:hsa05220] |
5215 Prostate cancer [PATH:hsa05215] |
5222 Small cell lung cancer [PATH:hsa05222] |
5321 Inflammatiory bowel disease (IBD) [PATH:hsa05321] |
5030 Cocaine addiction [PATH:hsa05030] |
4932 Non-alcoholic fatty liver disease (NAFLD) [PATH:hsa04932] |
5120 Epithelial cell signaling in Helicobacter pylori infection [PATH:hsa05120] |
5132 Salmonella infection [PATH:hsa05132] |
5131 Shigellosis [PATH:hsa05131] |
5133 Pertussis [PATH:hsa05133] |
5134 Legionellosis [PATH:hsa05134] |
5152 Tuberculosis [PATH:hsa05152] |
5166 HTLV-I infection [PATH:hsa05166] |
5162 Measles [PATH:hsa05162] |
5164 Influenza A [PATH:hsa05164] |
5161 Hepatitis B [PATH:hsa05161] |
5160 Hepatitis C [PATH:hsa05160] |
5168 Herpes simplex infection [PATH:hsa05168] |
5169 Epstein-Barr virus infection [PATH:hsa05169] |
5146 Amoebiasis [PATH:hsa05146] |
5145 Toxoplasmosis [PATH:hsa05145] |
5140 Leishmaniasis [PATH:hsa05140] |
5142 Chagas disease (American trypanosomiasis) [PATH:hsa05142] |
名称 |
---|
Activated TLR4 signalling |
Activation of NF-kappaB in B cells |
Adaptive Immune System |
C-type lectin receptors (CLRs) |
CD209 (DC-SIGN) signaling |
Cellular responses to stress |
Cellular Senescence |
CLEC7A (Dectin-1) signaling |
CLEC7A/inflammasome pathway |
Cytokine Signaling in Immune system |
Cytosolic sensors of pathogen-associated DNA |
Developmental Biology |
DEx/H-box helicases activate type I IFN and inflammatory cytokines production |
Disease |
Diseases associated with the TLR signaling cascade |
Diseases of Immune System |
Downstream signaling events of B Cell Receptor (BCR) |
Downstream TCR signaling |
Fc epsilon receptor (FCERI) signaling |
FCERI mediated NF-kB activation |
IkBA variant leads to EDA-ID |
IKBKG deficiency causes anhidrotic ectodermal dysplasia with immunodeficiency (EDA-ID) (via TLR) |
Immune System |
Innate Immune System |
Interleukin-1 processing |
Interleukin-1 signaling |
MyD88 cascade initiated on plasma membrane |
MyD88 dependent cascade initiated on endosome |
MyD88-independent TLR3/TLR4 cascade |
MyD88:Mal cascade initiated on plasma membrane |
NF-kB is activated and signals survival |
p75 NTR receptor-mediated signalling |
p75NTR signals via NF-kB |
Regulated proteolysis of p75NTR |
RIG-I/MDA5 mediated induction of IFN-alpha/beta pathways |
RIP-mediated NFkB activation via ZBP1 |
Senescence-Associated Secretory Phenotype (SASP) |
Signaling by Interleukins |
Signaling by the B Cell Receptor (BCR) |
Signalling by NGF |
TAK1 activates NFkB by phosphorylation and activation of IKKs complex |
TCR signaling |
Toll Like Receptor 10 (TLR10) Cascade |
Toll Like Receptor 2 (TLR2) Cascade |
Toll Like Receptor 3 (TLR3) Cascade |
Toll Like Receptor 4 (TLR4) Cascade |
Toll Like Receptor 5 (TLR5) Cascade |
Toll Like Receptor 7/8 (TLR7/8) Cascade |
Toll Like Receptor 9 (TLR9) Cascade |
Toll Like Receptor TLR1:TLR2 Cascade |
Toll Like Receptor TLR6:TLR2 Cascade |
Toll-Like Receptors Cascades |
TRAF6 mediated induction of NFkB and MAP kinases upon TLR7/8 or 9 activation |
TRAF6 Mediated Induction of proinflammatory cytokines |
TRAF6 mediated NF-kB activation |
Transcriptional regulation of white adipocyte differentiation |
TRIF-mediated TLR3/TLR4 signaling |
ZBP1(DAI) mediated induction of type I IFNs |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Adenocarcinoma | 0.138713133 | 8 | 0 | CTD_human_GAD_LHGDN |
Schizophrenia | 0.134581916 | 46 | 1 | BeFree_GAD_GWASCAT |
Colonic Neoplasms | 0.131354408 | 9 | 0 | BeFree_CTD_human_GAD_LHGDN |
Ulcerative Colitis | 0.1312586 | 16 | 33 | BeFree_GAD_GWASCAT_LHGDN |
Diabetes Mellitus, Non-Insulin-Dependent | 0.127448483 | 13 | 1 | BeFree_CTD_human_GAD |
Biliary cirrhosis | 0.122367032 | 1 | 1 | CTD_human_GAD |
Common Variable Immunodeficiency | 0.120814326 | 3 | 0 | BeFree_ORPHANET |
Kidney Failure, Chronic | 0.120542884 | 3 | 0 | BeFree_CTD_human |
Liver diseases | 0.120271442 | 2 | 0 | BeFree_CTD_human |
Brain Ischemia | 0.120271442 | 2 | 0 | BeFree_CTD_human |
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