Magnetic nanoparticles for the affinity adsorption of maltose binding protein (MBP) fusion enzymes

Magnetic nanoparticles for the affinity adsorption of maltose binding protein (MBP) fusion enzymes
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用于麦芽糖结合蛋白(MBP)融合酶亲和吸附的磁性纳米颗粒

DOI:
10.1039/c2jm16778f
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发表时间:
2012-03
影响因子:
--
通讯作者:
Xinhui Xing
Xinhui Xing
中科院分区:
--
文献类型:
--
作者:
Lilin Zhou;Jingjun Wu;Huijuan Zhang;Yan Kang;Jun Guo;Chong Zhang;Jinying Yuan;Xinhui Xing

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将融合蛋白技术与纳米粒子表面修饰技术相结合,成功制备了一种麦芽糖修饰的磁性载体,用于麦芽糖结合蛋白-肝素酶I融合酶(MBP-HepA)的分离纯化和固定化,并用于酶促反应和回收。HepA是降解肝素和硫酸乙酰肝素生产低分子肝素的重要酶。这种磁性载体对简化工艺、降低成本具有重要的意义。该磁性载体还可用于其他MBP融合蛋白的固定化,在生物技术和酶工程中具有广泛的应用前景。
By the combination of fusion protein technology and nanoparticle surface modification technology, a maltose-modified magnetic support has been successfully developed for the integration of separation/purification, and immobilization of maltose binding protein–Heparinase I fusion enzyme (MBP–HepA) for enzymatic reaction and recycle. HepA is an important enzyme to degrade heparin and heparan sulfate to produce low molecular weight heparin (LMWH). This magnetic support may play an important role for process simplification and cost reduction on the industrial production of LMWH. Further, this magnetic support also can be used for the immobilization of other MBP fusion proteins, which implies that this magnetic support may have wide applications in biotechnology and enzyme engineering.
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