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首页> 外文期刊>Acta biochimica Polonica >One-step purification of vitronectin from human plasmaby affinity chromatography on phage-displayed peptides
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One-step purification of vitronectin from human plasmaby affinity chromatography on phage-displayed peptides

机译:通过噬菌体展示肽的亲和层析从人血浆中一步纯化玻连蛋白

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摘要

A novel affinity purification method for rapid isolationof vitronectin (VN) from human plasma is described. Recentlywe have used phage display technology to obtainclones expressing peptides with high binding activity forVN. The isolated “strong VN binders” were covalentlycoupled to CNBr-activated Sepharose. Human plasmawas applied to the column and bound VN was elutedusing 0.5 M acetic acid, giving purity exceeding 90 %.The developed method is a convenient alternative toconventional antibody-antigen affinity chromatographytechniques for purification of VN, as it offers low ligandcost, is rapid and ensures good protein recovery fromhuman plasma.
机译:描述了一种从人血浆中快速分离玻连蛋白(VN)的新型亲和纯化方法。最近,我们已经使用噬菌体展示技术来获得表达对VN具有高结合活性的克隆。分离出的“强VN结合剂”与CNBr活化的琼脂糖共价偶联。将人血浆应用于色谱柱,并用0.5 M乙酸洗脱结合的VN,纯度超过90%。该开发的方法是常规抗体-抗原亲和层析技术纯化VN的便捷替代方法,因为它具有较低的配体成本,快速且可确保从人血浆中回收良好的蛋白质。

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