TLR9

✍ dations ◷ 2025-07-08 16:15:27 #人类蛋白质,Toll样受体,分化群

· interleukin-1 receptor binding

· extracellular region
· cytoplasm
· lysosome
· endosome
· endoplasmic reticulum
· endoplasmic reticulum membrane
· plasma membrane
· endosome membrane
· integral component of membrane
· basolateral plasma membrane
· apical plasma membrane
· early phagosome

· response to molecule of bacterial origin
· MyD88-dependent toll-like receptor signaling pathway
· inflammatory response
· I-kappaB phosphorylation
· insulin receptor signaling pathway
· positive regulation of gene expression
· maintenance of gastrointestinal epithelium
· negative regulation of NF-kappaB transcription factor activity
· tumor necrosis factor production
· negative regulation of interleukin-6 production
· negative regulation of interleukin-8 production
· positive regulation of chemokine production
· positive regulation of granulocyte macrophage colony-stimulating factor production
· positive regulation of interferon-beta production
· positive regulation of interleukin-10 production
· positive regulation of interleukin-12 production
· positive regulation of interleukin-18 production
· positive regulation of interleukin-6 production
· positive regulation of interleukin-8 production
· positive regulation of tumor necrosis factor production
· negative regulation of toll-like receptor signaling pathway
· positive regulation of toll-like receptor signaling pathway
· toll-like receptor 9 signaling pathway
· positive regulation of NF-kappaB import into nucleus
· defense response to bacterium
· positive regulation of I-kappaB kinase/NF-kappaB signaling
· positive regulation of JUN kinase activity
· positive regulation of interferon-gamma biosynthetic process
· innate immune response
· positive regulation of interferon-alpha biosynthetic process
· positive regulation of interferon-beta biosynthetic process
· positive regulation of transcription from RNA polymerase II promoter
· positive regulation of JNK cascade
· regulation of cytokine secretion
· positive regulation of inflammatory response
· defense response to Gram-negative bacterium
· positive regulation of NF-kappaB transcription factor activity
· positive regulation of nitric-oxide synthase biosynthetic process

Toll样受体9(英语:Toll-like receptor 9)是由人类基因 编码的蛋白质,也被称为CD289(分化簇289,cluster of differentiation 289),是Toll样受体(TLR)家族的成员。

TLR家族的受体在病原识别与先天免疫的激活中起着基础作用。TLRs are named for the high degree of conservation in structure and function seen between mammalian TLRs and the Drosophila transmembrane protein Toll. TLRs是呈现在细胞表面和胞内间室的跨膜蛋白,用以识别病原体呈现的病原相关分子模式(Pathogen-associated molecular patterns,PAMPs),然后启动制造先天和获得性免疫所需的细胞因子的信号。 The various TLRs exhibit different patterns of expression. 这一基因通常表达于富含免疫细胞的组织,比如脾、淋巴结、骨髓等。研究指出,在小鼠和人中的TLR9受体可响应细菌DNA中的未甲基化的CpG寡脱氧核苷酸序列来激活先天免疫应答。

TLR9可以识别DNA分子中的未甲基化的CpG序列,CpG位点在脊椎动物非常稀少(~1%),但在细菌或病毒基因组中很丰富。TLR9在免疫系统的多种细胞中有表达,如B淋巴细胞、单核细胞、自然杀伤细胞(NK)和浆细胞样树突状细胞。TLR9表达于细胞内,是核内体的组分之一,其功能为当细菌或病毒感染时结合其DNA上的富CpG基序来改变免疫系统的状态。TLR9的信号会导致细胞启动炎症反应,并分泌相关细胞因子,如I型干扰素和IL-12等。

There are new immunomodulatory treatments undergoing testing which involve the administration of artificial DNA oligonucleotides containing the CpG motif. CpG DNA has applications in treating allergies such as asthma, immunostimulation against cancer, immunostimulation against pathogens, and as adjuvants in vaccines.



TLR9引用了美国国家医学图书馆提供的资料,这些资料属于公共领域。

TLR 1(英语:TLR 1) · TLR 2(英语:TLR 2) · TLR 6(英语:TLR 6)

IRAK1(英语:IRAK1) · IRAK4(英语:IRAK4)

IRF3(英语:IRF3)

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