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[求助]
native page marker和還原劑問題 已有1人參與
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1. 想知道不同條件下蛋白聚集情況。計(jì)算等電點(diǎn)在5.6,應(yīng)該選擇什么樣的marker? 因?yàn)榈鞍自赟DS-PAGE上顯示的是單體的分子量,可以用還原加熱變性的蛋白做marker嗎? 2. 蛋白本身易聚集,所以在純化過程中一直有還原劑。這樣可以跑native膠嗎?native page能耐受的還原劑是什么劑量? |
木蟲 (正式寫手)
1 escriptionThe NativeMark™ Unstained Protein Standard is a ready-to-use protein standard designed for molecular weight estimation of proteins using native gel electrophoresis. Features of this marker: • Versatile—recommended for use with Novex® NativePAGE™ Bis-Tris, gradient Tris-Glycine, or NuPAGE® Novex® Tris-Acetate gels • Comprehensive—contains markers with a wide range of high molecular weights, providing 8 protein bands in the range of 20–1,200 kDa • Convenient—no need to add sample buffer, just load and run • Compatible—can be visualized using Coomassie®, silver, or fluorescent stains after electrophoresis, or with Ponceau S, Coomassie®, or other membrane stains after Western transfer Electrophoresis under native (nondenaturing) conditions maintains the native protein conformation, cohesion of subunits, and biological activity. During native electrophoresis, proteins are separated based on their charge to mass ratios. 2: 10-20mM DTT 應(yīng)該沒問題 |
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