
IFNAR2 - Wikipedia
The protein encoded by this gene is a type I membrane protein that forms one of the two chains of a receptor for interferons alpha and beta. Binding and activation of the receptor stimulates Janus protein kinases, which in turn phosphorylate several proteins, including STAT1 and STAT2.
IFNAR1 and IFNAR2 play distinct roles in initiating type I ... - PubMed
2021年11月23日 · Type I interferons bind to cell surface receptors composed of the subunits IFNAR1 and IFNAR2, the intracellular domains (ICDs) of which are associated with the kinases TYK2 and JAK1, respectively. Ligand binding results in the cross-phosphorylation of TYK2 and JAK1, which then phosphorylate tyrosine …
干扰素受体 - 知乎 - 知乎专栏
IFNAR2(β亚单)有三种由相同基因选择性剪接产生的类型:IFNAR2a(βs短型体)、IFNAR2b(β可溶体)和IFNAR2c(βL长型体)。 βs短型体和βL长型体通过胞外和跨膜区域以及胞浆区域的第一个16氨基酸来区分。 可溶型由236氨基酸后面插入一个终止密码子产生。 长型β亚单位(βL)是长为515氨基酸残基和信号产生的最初形式。 I型干扰素以IFN-α与IFN-β为主由先天性免疫细胞分泌。 IFN β主要由人成纤细胞产生;IFN-α主要由单核-巨噬细胞产生,此外B细胞和 …
干扰素IFN细胞因子-干扰素受体和IFN ELISA | 赛默飞 | Thermo …
i型ifn能与特定细胞表面受体ifn-α/β (ifnar1,ifnar2)结合,是未感染细胞的预警系统。 在人体中,I型IFN是最大的IFN家族,包括IFN-α、IFN-β、 IFN-ε、IFN-κ和IFN-ω;它们由多种类型的细胞分泌,包括浆细胞样树突状细胞和成纤维细胞。
Interferon-alpha/beta receptor - Wikipedia
IFNAR is a heteromeric cell surface receptor composed of two subunits, referred to as the low affinity subunit, IFNAR1, and the high affinity subunit, IFNAR2. [7][8] Upon binding of type I interferons, IFNAR activates the JAK-STAT signalling pathway, along with MAPK, PI3K, and Akt signaling pathways. [2] .
IFNAR1 and IFNAR2 play distinct roles in initiating type I ... - AAAS
2021年11月23日 · Type I interferons form a complex with the receptor subunits IFNAR1 and IFNAR2, which stimulates cross-activation of the tyrosine kinases associated with the receptor subunits, TYK2 and JAK1. This leads to tyrosine phosphorylation of the IFNARs and of the STAT proteins that mediate transcriptional responses.
Human IFNAR2 deficiency: Lessons for antiviral immunity
2015年9月30日 · By targeted resequencing, we identified a homozygous mutation in the high-affinity IFN-α/β receptor (IFNAR2) in the proband, as well as a newborn sibling, that rendered cells unresponsive to IFN-α/β. Reconstitution of the proband's cells with wild-type IFNAR2 restored IFN-α/β responsiveness and control of IFN-attenuated viruses.
干扰素 α 和 β 受体亚基 2(IFNAR2)基因 | MCE
由该基因编码的蛋白质是一种 I 型膜蛋白,它形成干扰素 α 和 β 受体的两条链之一。 受体的结合和激活会刺激 Janus 蛋白激酶,进而磷酸化多种蛋白质,包括 STAT1 和 STAT2。 该蛋白属于 II 型细胞因子受体家族。 该基因的突变与免疫缺陷 45 相关。 [RefSeq 提供,2020 年 7 月] The protein encoded by this gene is a type I membrane protein that forms one of the two chains of a receptor for interferons alpha and beta.
干扰素:来源、去处、机制与疾病 - 知乎 - 知乎专栏
所有I型IFN都与特定的细胞表面受体复合物结合,该复合物称为 IFN-α 受体(IFNAR),该复合物由IFNAR1和IFNAR2链组成。 在所有哺乳动物中都发现了I型干扰素,并且在鸟类,爬行动物,两栖动物和鱼类中也发现了同源(相似)分子。 其中IFN-α蛋白主要由 浆细胞样树突状细胞 (pDC)产生。 它们主要参与针对病毒感染的先天免疫。 IFN-α还可以合成制成毛细胞白血病的药物。 IFN-β 蛋白是由成纤维细胞已经描述了两种类型的IFN-β:IFN-β1(大量产生的。 它们具 …
IFNAR2 interferon alpha and beta receptor subunit 2 [ (human)]
IFNaR2, a subunit of the type I IFN receptor, is proteolytically cleaved in a regulated manner. Oveexpression of IFNAR2 is associated with hepatocellular carcinoma; Hepatic IFNAR2c mRNA expression appears to correlate inversely with the fibrosis stage and age in hepatitis C infection.