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产品详情

重组人干扰素-α2a蛋白

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  • 产品名称:重组人干扰素-α2a蛋白
  • 产品型号:rHuIFN-α2a
  • 产品展商:KALANG
  • 产品文档:无相关文档
  • 发布时间:2018-09-15
  • 在线询价
简单介绍
重组人干扰素-α2a蛋白与其它公司提供的重组蛋白不同,rHuIFN-α2a蛋白产品为采用CFS的无细胞麦胚蛋白合成系统表达出来的重组蛋白,可表达出对细胞有毒性、易被蛋白酶降解的蛋白;并获得具有良好的可溶性,并有翻译后修饰、从而部分具有功能的蛋白.同时独有的全自动蛋白纯化技术则简便高效,将蛋白纯化过程中对蛋白的损伤降低到*小程度.重组人干扰素-α2a蛋白(全长序列)产品可用于Western Blot验证、抗体制备、蛋白检测、ELISA等试验中.
产品描述

重组人干扰素-α2a蛋白

Species Human
Accession P01563
GeneID 3440
Source Yeast
Molecular Weight Approximately 19.2 kDa, a single non-glycosylated polypeptide chain containing 165 amino acids.
Quantity 20µg/100µg/1000µg
AA Sequence 重组人干扰素-α2a蛋白CDLPQTHSLG SRRTLMLLAQ MRKISLFSCL KDRHDFGFPQ EEFGNQFQKA ETIPVLHEMI QQIFNLFSTK DSSAAWDETL LDKFYTELYQ QLNDLEACVI QGVGVTETPL MKEDSILAVR KYFQRITLYL KEKKYSPCAW EVVRAEIMRS FSLSTNLQES LRSKE
Purity > 97 % by SDS-PAGE and HPLC analyses.
Biological Activity Fully biologically active when compared to standard. The specific activity determined by an anti-viral assay is no less than 1.0 × 108 IU/mg.
Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation 重组人干扰素-α2a蛋白Lyophilized from a 0.2 µm filtered solution in PBS, pH 7.4.
Endotoxin Less than 1 EU/µg of rHuIFN-α2a as determined by LAL method.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage 重组人干扰素-α2a蛋白This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.
重组人干扰素-α2a蛋白
SDS-PAGE
Reference 1. Tarhini AA, Gogas H, Kirkwood JM. 2012. J Immunol, 189: 3789-93.
2. Zarogoulidis P, Kioumis I, Papanas N, et al. 2012. J Chemother, 24: 173-7.
3. Tohyama M, Yang L, Hanakawa Y, et al. 2012. J Invest Dermatol, 132: 1933-5.
4. Corssmit EP, Heijligenberg R, Hack CE, et al. 1997. Clin Exp Immunol, 107: 359-63.
Background IFN-αs are proteins secreted by leukocyte. They are mainly involved in innate immune response against viral infection. The IFN-α family has 13 subtypes and 23 different variants. The individual proteins have molecular masses between 19-26 kDa and consist of proteins with lengths of 156-166 and 172 amino acids. All IFN-α subtypes possess a common conserved sequence region between amino acid positions 115-151 while the amino-terminal ends are variable. Many IFN-alpha subtypes differ in their sequences at only one or two positions. Naturally occurring variants also include proteins truncated by 10 amino acids at the carboxy-terminal end.

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