【热门产品推介】Research Grade Anti-RSV F/Fusion glycoprotein F0 (RSD5)
RSV F蛋白高度保守,其功能为促进病毒与宿主细胞的融合,也是中和抗体的重要靶点。虽然目前还不清楚F蛋白在感染过程中变构是如何发生的,但是F蛋白的变构现象(即从融合前pre-F构象转变为融合后post-F构象)确实是自发发生的,也因此pre-F蛋白作为抗原的稳定性很难保持,在FI-RSV候选疫苗中也主要展示了F蛋白融合后构象(post-F)。然而,一些针对pre-F蛋白的稳定突变已经发现,可以用来稳定pre-F的构象(图1)。这些突变的发现也让pre-F蛋白作为疫苗抗原成为了可能。
货号:DVV02818
产品链接:http://www.antibodysystem.com/product/9571.html
物种反应性:Human respiratory syncytial virus A (strain A2)
形式:Liquid
存储缓冲区:0.01M PBS, pH 7.4.
浓度:1 mg/ml
纯度:>95% by SDS-PAGE.
克隆性:Monoclonal
应用Research Grade Biosimilar
储存:Use a manual defrost freezer and avoid repeated freeze-thaw cycles.Store at +4°C short term (1-2 weeks).Store at -20 °C 12 months. Store at -80°C long term.
参考文献:
Comparative analysis of multiple representative components in the herb pair Astragali Radix-Curcumae Rhizoma and its single herbs by UPLC-QQQ-MS. PMID: 29055246
Alternative conformations of a major antigenic site on RSV F. PMID: 31306469
Simultaneous determination of intracellular UDP-sugars in hyaluronic acid-producing Streptococcus zooepidemicus. PMID: 26114654
Enhancing analysis throughput, sensitivity and specificity in LC/ESI-MS/MS assay of plasma 25-hydroxyvitamin D3 by derivatization with triplex 4-(4-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione (DAPTAD) isotopologues. PMID: 28081498
Three-step stacking by field-enhanced sample injection, sweeping, and micelle to solvent stacking in capillary electrophoresis: Anionic analytes. PMID: 27000740
Hydrophilic deep eutectic solvents modified phenolic resin as tailored adsorbent for the extraction and determination of levofloxacin and ciprofloxacin from milk. PMID: 34041574
Enantiomeric composition analysis of pranoprofen in equine plasma and urine by chiral liquid chromatography-tandem mass spectrometry in selected reaction monitoring mode. PMID: 21036111
除F蛋白外,G蛋白是中和病毒表面的唯一其他靶点。G蛋白在病毒颗粒表面以低聚物的形式存在,并以单体形式从感染细胞中分泌出来,对于病毒的附着至关重要。有证据表明单体可溶的G蛋白在病毒感染中起到诱饵的作用,帮助病毒逃避抗体反应。然而G蛋白在RSV株间变异性较大,其表面结构又知之甚少,因此不常用作疫苗抗原。
另一个可能的疫苗靶点是小疏水蛋白(SH),包含跨膜结构域和胞外结构域,与病毒在体内的复制和炎症激活方面起作用,可能能够诱导抗体依赖的细胞介导细胞毒作用(ADCC),因此其胞外域已被用作抗原研究。
RSV的其他几种非结构蛋白(N蛋白,M2-1蛋白和M2-2蛋白)与诱导T细胞免疫息息相关,因此在疫苗设计中也常作为疫苗抗原的靶点,单独或与其他抗原联合使用。