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A novel and one-step purification of human ceruloplasmin by acharan sulfate affinity chromatography

机译:硫酸亚硫酸盐亲和色谱法一步一步纯化人铜蓝蛋白

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摘要

Human ceruloplasmin, a copper binding α2-glycoprotein, was purified by a single-step procedure using acharan sulfate affinity chromatography. Acharan sulfate was immobilized to amine-functionalized agarose matrix through carboxylic acids. Ceruloplasmin in human plasma was obtained from 0.4 M NaCl salt elution and characterized by SDS-PAGE (132 and 125 kDa), isoelectric focusing (pI 4.6), Western blotting, and MALDI-TOF-MS peptide mass fingerprinting. Ceruloplasmin was purified 106 fold with a specific oxidase activity of 0.53 U/mg protein.
机译:人铜蓝蛋白是一种铜结合的α 2 -糖蛋白,使用硫酸亚硫酸盐亲和色谱法通过一步步骤进行纯化。通过羧酸将硫酸char聚糖固定在胺官能化的琼脂糖基质上。人血浆中的铜蓝蛋白是从0.4 M NaCl盐洗脱液中获得的,并通过SDS-PAGE(132和125 kDa),等电聚焦(pI 4.6),蛋白质印迹和MALDI-TOF-MS肽质量指纹图谱进行表征。铜蓝蛋白纯化了106倍,比氧化酶活性为0.53 U / mg蛋白。

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