NCF1(Neutrophil Cytosolic Factor 1)是NADPH氧化酶复合体的关键组成部分,属于NOX2复合物的胞质亚基之一。它编码p47phox蛋白,主要功能是与p67phox、p40phox及Rac GTPase共同激活膜结合亚基gp91phox(NOX2),促进活性氧(ROS)的产生。ROS在免疫防御中起核心作用,帮助中性粒细胞杀灭病原体,同时也参与细胞信号传导和炎症反应调控。NCF1基因突变会导致慢性肉芽肿病(CGD),这是一种罕见的遗传性免疫缺陷病,患者因NADPH氧化酶功能缺陷而无法产生足够ROS,表现为反复细菌和真菌感染以及肉芽肿形成。NCF1属于NCF基因家族(包括NCF1、NCF2、NCF4),该家族成员均编码NADPH氧化酶复合体的调控蛋白,具有相似的磷酸化位点和SH3结构域,能够介导蛋白间相互作用。当NCF1过表达时,可能增强ROS生成,导致氧化应激相关疾病如动脉粥样硬化或自身免疫性疾病;而表达降低则削弱先天免疫功能,增加感染风险。此外,NCF1多态性与多种自身免疫疾病相关,如类风湿关节炎和系统性红斑狼疮,因其ROS调控异常可影响炎症平衡。研究还发现NCF1通过调节ROS水平影响其他基因(如NF-κB和HIF-1α)的活性,进而调控细胞凋亡、增殖和免疫应答等过程。
The protein encoded by this gene is a 47 kDa cytosolic subunit of neutrophil NADPH oxidase. This oxidase is a multicomponent enzyme that is activated to produce superoxide anion. Mutations in this gene have been associated with chronic granulomatous disease. [provided by RefSeq, Jul 2008]
由该基因编码的蛋白质是嗜中性粒细胞NADPH氧化酶的47 kDa的胞质亚基。此氧化酶是活化以产生超氧阴离子的多组分酶。在这种基因突变与慢性肉芽肿病相关联。 [由RefSeq的,2008年7月提供]
NCF1基因(以及对应的蛋白质)的细胞分布位置:
NCF1基因的本体(GO)信息:
| 名称 |
|---|
| 4145 Phagosome [PATH:hsa04145] |
| 4666 Fc gamma R-mediated phagocytosis [PATH:hsa04666] |
| 4670 Leukocyte transendothelial migration [PATH:hsa04670] |
| 4062 Chemokine signaling pathway [PATH:hsa04062] |
| 4380 Osteoclast differentiation [PATH:hsa04380] |
| 5140 Leishmaniasis [PATH:hsa05140] |
| 名称 |
|---|
| Adaptive Immune System |
| Antigen processing-Cross presentation |
| Class I MHC mediated antigen processing & presentation |
| Cross-presentation of particulate exogenous antigens (phagosomes) |
| Disease |
| Immune System |
| Infectious disease |
| Latent infection of Homo sapiens with Mycobacterium tuberculosis |
| Phagosomal maturation (early endosomal stage) |
| RHO GTPase Effectors |
| RHO GTPases Activate NADPH Oxidases |
| Signaling by Rho GTPases |
| Signaling by VEGF |
| VEGFA-VEGFR2 Pathway |
| 疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
| Granulomatous Disease, Chronic, Autosomal Recessive, Cytochrome B-Positive, Type I | 0.44 | 1 | 5 | CLINVAR_CTD_human_MGD_UNIPROT |
| Chronic granulomatous disease | 0.137839219 | 58 | 0 | BeFree_GAD_ORPHANET |
| Hypertensive disease | 0.121357209 | 7 | 0 | BeFree_CTD_human |
| Rheumatoid Arthritis | 0.120814326 | 4 | 0 | BeFree_CTD_human |
| Diabetes Mellitus | 0.120542884 | 3 | 0 | BeFree_CTD_human |
| Diabetes Mellitus, Experimental | 0.12 | 2 | 0 | CTD_human |
| Kidney Failure, Chronic | 0.12 | 1 | 0 | CTD_human |
| Intracranial Aneurysm | 0.12 | 1 | 0 | CTD_human |
| Hypercholesterolemia | 0.12 | 1 | 0 | CTD_human |
| Neoplastic Cell Transformation | 0.12 | 1 | 0 | CTD_human |
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