RAC2(Ras-related C3 botulinum toxin substrate 2)是一种小GTP酶,属于Rho家族中的RAC亚家族。RAC2主要在造血细胞中表达,参与调控细胞骨架重组、细胞迁移、吞噬作用、活性氧(ROS)生成以及免疫细胞的激活等重要生物学过程。RAC2通过GTP/GDP结合状态的转换来调节下游信号通路,影响中性粒细胞、巨噬细胞和T细胞的功能。RAC2的突变可能导致其功能异常,例如功能获得性突变(如RAC2 D57N)会导致过度激活,引发中性粒细胞功能紊乱,增加感染风险;而功能缺失性突变则可能导致免疫缺陷,如严重联合免疫缺陷(SCID)或慢性肉芽肿病(CGD)。RAC2过表达可能促进细胞迁移和侵袭,与某些癌症的进展相关;而降低表达则可能削弱免疫细胞功能,增加感染易感性。RAC2基因家族(Rho家族)的共性包括调控细胞骨架动力学、细胞极性、膜运输和基因转录等。该家族成员均通过GTP酶循环发挥作用,并参与多种细胞生理和病理过程。
This gene encodes a member of the Ras superfamily of small guanosine triphosphate (GTP)-metabolizing proteins. The encoded protein localizes to the plasma membrane, where it regulates diverse processes, such as secretion, phagocytosis, and cell polarization. Activity of this protein is also involved in the generation of reactive oxygen species. Mutations in this gene are associated with neutrophil immunodeficiency syndrome. There is a pseudogene for this gene on chromosome 6. [provided by RefSeq, Jul 2013]
这个基因编码的小三磷酸鸟苷(GTP)-metabolizing蛋白质的Ras超家族的成员。所编码的蛋白质定位于质膜,在那里它调节多种工艺,例如分泌,吞噬作用,和细胞极化。该蛋白质的活性也参与活性氧的产生。在这种基因突变与嗜中性粒细胞性免疫缺陷综合征有关。没有为第6号染色体这个基因假基因[由RefSeq的,2013年7月提供]
RAC2基因(以及对应的蛋白质)的细胞分布位置:
RAC2基因的本体(GO)信息:
名称 |
---|
4014 Ras signaling pathway [PATH:hsa04014] |
4015 Rap1 signaling pathway [PATH:hsa04015] |
4010 MAPK signaling pathway [PATH:hsa04010] |
4310 Wnt signaling pathway [PATH:hsa04310] |
4370 VEGF signaling pathway [PATH:hsa04370] |
4071 Sphingolipid signaling pathway [PATH:hsa04071] |
4024 cAMP signaling pathway [PATH:hsa04024] |
4810 Regulation of actin cytoskeleton [PATH:hsa04810] |
4510 Focal adhesion [PATH:hsa04510] |
4520 Adherens junction [PATH:hsa04520] |
4650 Natural killer cell mediated cytotoxicity [PATH:hsa04650] |
4662 B cell receptor signaling pathway [PATH:hsa04662] |
4664 Fc epsilon RI signaling pathway [PATH:hsa04664] |
4666 Fc gamma R-mediated phagocytosis [PATH:hsa04666] |
4670 Leukocyte transendothelial migration [PATH:hsa04670] |
4062 Chemokine signaling pathway [PATH:hsa04062] |
4360 Axon guidance [PATH:hsa04360] |
5200 Pathways in cancer [PATH:hsa05200] |
5231 Choline metabolism in cancer [PATH:hsa05231] |
5210 Colorectal cancer [PATH:hsa05210] |
5212 Pancreatic cancer [PATH:hsa05212] |
5416 Viral myocarditis [PATH:hsa05416] |
名称 |
---|
Axon guidance |
beta-catenin independent WNT signaling |
Developmental Biology |
G alpha (12/13) signalling events |
GPCR downstream signaling |
GPVI-mediated activation cascade |
Hemostasis |
PCP/CE pathway |
Platelet activation, signaling and aggregation |
Rho GTPase cycle |
RHO GTPase Effectors |
RHO GTPases Activate NADPH Oxidases |
Sema4D in semaphorin signaling |
Sema4D induced cell migration and growth-cone collapse |
Semaphorin interactions |
Signaling by GPCR |
Signaling by Rho GTPases |
Signaling by Wnt |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Neutrophil Immunodeficiency Syndrome | 0.482638474 | 1 | 1 | BeFree_CLINVAR_CTD_human_GAD_ORPHANET_UNIPROT |
Lymphoma | 0.120271442 | 2 | 0 | BeFree_CTD_human |
Heart Diseases | 0.12 | 1 | 0 | CTD_human |
melanoma | 0.12 | 1 | 0 | CTD_human |
Juvenile Myelomonocytic Leukemia | 0.12 | 1 | 0 | CTD_human |
leukemia | 0.003267234 | 3 | 0 | BeFree_LHGDN |
Glioma | 0.00272435 | 1 | 0 | LHGDN |
Lymphoma, Non-Hodgkin | 0.002638474 | 2 | 0 | BeFree_GAD |
Brain Neoplasms | 0.002638474 | 2 | 0 | BeFree_GAD |
Occupational Diseases | 0.002367032 | 1 | 0 | GAD |
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