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Precision Plus ProteinTM Unstained Protein Standards, Strep-tagged recombinant, 1 ml

精密加蛋白TM未染色蛋白标准品

公司名称: Bio-Rad Laboratories
产品编号: 1610363
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Isolation, Purification and Characterization of Exosomes from Fibroblast Cultures of Skeletal Muscle
Author:
Date:
2020-04-05
[Abstract]  Exosomes are dynamic nanovesicles secreted by virtually all cells and are present in all biological fluids. Given their highly heterogeneous content exosomes have been implicated in many physiological and pathological processes that they exert by influencing cell-cell and cell-ECM communication. In recent years an increasing number of methods have been established for the purification and characterization of exosomes. These include ultracentrifugation, ultrafiltration, size exclusion chromatography, immune capture and precipitation using a proprietary polymer. Here, we provide a protocol ... [摘要]  [摘要 ] 外来体是几乎所有细胞分泌的动态纳米囊泡,并存在于所有生物体液中。鉴于它们的异质含量很高,外泌体已牵涉到它们通过影响细胞-细胞和细胞-ECM通讯而发挥的许多生理和病理过程。近年来,已经建立了越来越多的方法外泌体的纯化和表征。其中包括超速离心,超滤,尺寸排阻色谱,免疫捕获和使用专有聚合物的沉淀。在这里,我们提供了基于差分超速离心和蔗糖密度梯度的协议,该协议专门用于从成年小鼠骨骼肌衍生的原代成纤维细胞培养物中分离粗制和超纯外泌体。可以对该协议进行修改和修改,以从各种组织和体液中分离和表征外泌体。


背景 ] ë xosomes是单膜,异质纳米囊泡直径范围从30至150nm,secre 由所有细胞和存在于几乎所有的体液泰德。外泌体中存在的可溶性和膜大分子,mRNA,microRNA的光谱取决于代谢状态以及分泌这些纳米囊泡的细胞的发育起源。由于它们的货物组成,外泌体可以启动接收细胞中的信号传导途径,并参与了发育,免疫和正常组织生理的维持。在神经退行性疾病,纤维化和癌症等疾病条件下,它们被证明可以触发和传播病理刺激(Rackov 等,2018; Gurunathan 等,2019; van de Vlekkert 等,2019)。在这里,我们描述了从成年小鼠腓肠肌(GA)肌肉建立的成纤维细胞培养物中纯化外泌体的方案(van de Vlekkert ...

In vitro Assay of the Glycosyltransferase Activity of a Heterologously Expressed Plant Protein
Author:
Date:
2014-11-05
[Abstract]  Glycosyltransferases are carbohydrate active enzymes containing catalytic modules involved in catalysing the biosynthesis of glycosidic bonds in oligo- and polysaccharides and glycoconjugates. One of the most comprehensive collections of Carbohydrate Active enZYmes is the CAZy database (http://www.cazy.org) comprising 120,000 glycosyltransferases allocated to 96 families based mainly on sequence homologies of their conserved and catalytically active domains (Cantarel et al., 2009). Interestingly, the glycosyltransferase activities of ... [摘要]  糖基转移酶是含有催化模块的碳水化合物活性酶,其涉及催化寡糖和多糖和糖缀合物中糖苷键的生物合成。 Carbohydrate Active enZYmes最全面的集合之一是CAZy数据库( http://www.cazy.org ) ),其包含分配给96个家族的120,000个糖基转移酶,主要基于其保守和催化活性结构域的序列同源性(Cantarel等人,2009)。有趣的是,仅约1.6%的这些蛋白质的糖基转移酶活性已经通过实验表征(Lombard等人,2014)。近年来,已显示许多家族的膜结合糖基转移酶在植物细胞壁多糖的生物合成中起关键作用(Doblin等人,2010; Scheller和Ulvskov,2010 ; ...

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