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去除血清中高、中丰度蛋白方法的优化 被引量:2

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摘要 目的:通过比较和优化血清样品制备方法,建立简便、灵敏的去除血清中高、中丰度蛋白的方法。方法:运用盐析法、有机溶剂法和亲和层析柱法去除血清中高、中丰度蛋白,经蛋白浓度测定和SDS-PAGE电泳分析,比较3种方法对高、中丰度蛋白去除效果及小分子蛋白的保留和分布情况。结果:乙腈沉淀法能去除血清样品中90%左右的高、中丰度蛋白,同时可残留更多15 ku以下的小分子蛋白;盐析沉淀法和亲和层析柱法均能去除血清样品中大部分高、中丰度蛋白,但所得的15 ku以下的小分子蛋白少于乙腈沉淀法所得到的相应蛋白。结论:用1.2倍体积乙腈沉淀法处理血清样品可去除绝大部分高、中丰度蛋白,同时收获更多的15 ku以下的小分子量蛋白。
出处 《广西医科大学学报》 CAS 2011年第2期250-252,共3页 Journal of Guangxi Medical University
基金 国家自然科学基金资助项目(No.30760219)
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同被引文献20

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