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首页> 外文期刊>Biomaterials Science >Nanoscopic leg irons: harvesting of polymer-stabilized membrane proteins with antibody-functionalized silica nanoparticles
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Nanoscopic leg irons: harvesting of polymer-stabilized membrane proteins with antibody-functionalized silica nanoparticles

机译:纳米腿铁:用抗体功能化的二氧化硅纳米颗粒收获聚合物稳定的膜蛋白

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摘要

Silica-based nanoparticles (SiNPs) are presented to harvest complex membrane proteins, which have been embedded into unilammelar polymersomes via in vitro membrane assisted protein synthesis (iMAP). Size-optimized SiNPs have been surface-modified with polymer-targeting antibodies, which are employed to harvest the protein-containing polymersomes. The polymersomes mimic the cellular membrane. They are chemically defined and preserve their structural-functional integrity as virtually any membrane protein species can be synthesized into such architecture via the ribosomal context of a cellular lysate. The SiNPs resemble 'heavy leg irons' catching the polymersomes in order to enable gravity-based generic purification and concentration of such proteopolymersomes from the crude mixture of cellular lysates.
机译:提出了基于二氧化硅的纳米颗粒(SiNPs)以收获复杂的膜蛋白,这些蛋白通过体外膜辅助蛋白合成(iMAP)嵌入单层聚合物囊泡中。尺寸优化的SiNPs已用聚合物靶向抗体进行了表面修饰,该抗体可用于收获含蛋白质的聚合物小体。聚合物小体模拟细胞膜。它们是化学定义的,并保留了其结构功能的完整性,因为实际上任何膜蛋白都可以通过细胞裂解液的核糖体环境合成为这种结构。 SiNP类似于“重腿铁”,捕获聚合物小体,以便能够从细胞裂解液的粗混合物中进行基于重力的通用纯化和此类蛋白多聚体的浓缩。

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