IFN-alpha 2/IFNA2 蛋白, Mouse (P.pastoris)

IFN-alpha 2 (IFNA2), belongs to type I interferon family, is a protein secreted by cells infected by a virus and acting on other cells to inhibit viral infection^[1]. IFN-alpha 2 exerts cytotoxic activity against CD8⁺ T cells and induces CD4⁺ T cell depletion^[3]. IFN-alpha 2/IFNA2 Protein, Mouse (P.pastoris) contains 167 a.a. (C24-E190), is produced in yeast strain P. pastoris with tag free.

IFN-α 2（IFNA2；IFN-α2）属于 I 型干扰素家族，由浆细胞样树突状细胞 (pDC) 接触 HIV-1BaL 后产生，以抑制病毒感染^[1]。
干扰素（IFN）最初被认为是一种在体外“干扰”病毒复制的物质。IFN-α/β及相关分子被归类为I型干扰素，其他两类分别为II型干扰素（IFN-γ）和III型干扰素（IFN-λ）^[2]。
IFN-α 2 亚型是目前唯一被许可用于治疗乙型肝炎病毒 (HBV) 和 HCV 引起的感染的亚型^[3]。
IFN-α图 2 显示了细胞中分拣蛋白依赖性运输，并增加了 HIV 感染细胞中干扰素刺激基因 (ISG) 的表达水平^[1][4]。它还具有针对 CD8⁺ T 细胞的细胞毒活性，并增强 CD4⁺ T 细胞的耗竭^[3]。
α 2 等位基因中，IFN-α 2b 是主要等位基因，而 IFNα-2a 次要，而 IFNα-2c 只是次要等位基因变异^[5]。
IFN-α 2 具有癌症研究中的无聊应用，包括一些血液恶性肿瘤和实体瘤^[6]。至于IFN在动物疾病模型中的广泛应用，小鼠IFNA2a蛋白的氨基酸序列与人类有很大差异（59.57%）。

mIFN-alpha 2 (mouse) mediates the interaction with mSortilin via Arg22, and the mIFNa2-mCherry is transiently co-expressed with mSortilin-EGFP in HEK293T cells^[4].

Measured in antiviral assays using L929 cells infected with vesicular stomatitis virus (VSV) and the ED₅₀  is typically 0.15-0.9 ng/mL.

Mouse

P. pastoris

Tag Free

P01573 (C24-E190)

15965  [NCBI]

CDLPHTYNLRNKRALKVLAQMRRLPFLSCLKDRQDFGFPLEKVDNQQIQKAQAIPVLRDLTQQTLNLFTSKASSAAWNATLLDSFCNDLHQQLNDLQTCLMQQVGVQEPPLTQEDALLAVRKYFHRITVYLREKKHSPCAWEVVRAEVWRALSSSVNLLPRLSEEKE

Approximately 19.4 kDa

Greater than 95% as determined by reducing SDS-PAGE.

无菌粉末.

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.

• [1]. Abraham S, et al. Gene therapy with plasmids encoding IFN-β or IFN-α14 confers long-term resistance to HIV-1 in humanized mice. Oncotarget. 2016 Nov 29;7(48):78412-78420.  [Content Brief]

  [2]. Zhang SY, et al. Inborn errors of interferon (IFN)-mediated immunity in humans: insights into the respective roles of IFN-alpha/beta, IFN-gamma, and IFN-lambda in host defense. Immunol Rev. 2008 Dec;226:29-40.  [Content Brief]

  [3]. Sutter K, et al. Interferon α subtypes in HIV infection. Cytokine Growth Factor Rev. 2018 Apr;40:13-18.  [Content Brief]

  [4]. Watanabe H, et al. Detailed structure of mouse interferon α2 and its interaction with Sortilin. J Biochem. 2021 Oct 11;170(2):265-273.  [Content Brief]

  [5]. Gull I, et al. Heterologous expression, immunochemical and computational analysis of recombinant human interferon alpha 2b. Springerplus. 2013 Jun 15;2(1):264.  [Content Brief]

  [6]. Paul F, et al. IFNA2: The prototypic human alpha interferon. Gene. 2015 Aug 10;567(2):132-7.  [Content Brief]