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Recombinant human peroxiredoxin VI:preparation and protective properties in vitro

机译:重组人过氧化物酶VI:体外制备和保护特性

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摘要

cDNA of human peroxiredoxin VI,one of the the recently discovered novel antioxidant proteins,was expressed in Escherichia coli cells.The expression product was oobtained in water-soluble form and purified by a two-step chromatographic procedure using DEAE-Sepharose and Sephacryl S-200.According to CD data,the polypeptide chain of the recombinant human peroxiredoxin VI contains approx40% alpha-helical region and 30% beta-structure,which is the same as for native rat peroxiredoxin VI.The protective propewrties of the recombinant protein determined as its ability to prevent the inactivation of glutamine synthetase from E.coli in a model oxidation system were comparable with the protective properties of native rat peroxiredoxin VI.
机译:在大肠杆菌细胞中表达了人类新发现的新型抗氧化蛋白之一的人过氧化物酶VI的cDNA。该表达产物以水溶性形式获得,并通过DEAE-Sepharose和Sephacryl S-的两步色谱法纯化200.根据CD数据,重组人过氧化物酶VI的多肽链包含约40%的α-螺旋区和30%β结构,与天然大鼠过氧化物酶VI相同。重组蛋白的保护性为它在模型氧化系统中防止谷氨酰胺合成酶失活的能力与天然大鼠过氧化物酶VI的保护性能相当。

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