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妊娠相关血浆蛋白-A的纯化与鉴定

Acta Universitatis Medicinalis Nanjing(Natural Science)(2007)

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Abstract
目的:建立人妊娠血浆相关蛋白A(PAPP-A)的纯化与鉴定方法。方法:利用DEAE-Sephadex CL-6B离子交换和Heparin-sepharose CL-6B亲和层析进行分离纯化,变性SDS-PAGE测定其相对分子质量为200kD,Western blotting鉴定其特异性。结果:获得相对分子质量为200kD的蛋白条带,此条带可与妊娠血浆相关蛋白A单克隆抗体发生特异性反应。结论:成功地从孕妇血清中分离得到妊娠血浆相关蛋白A。
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Key words
identification,pregnancy-associated plasma protein A,purification
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