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Chromatography of isoforms of recombinant apoaequorin and method for the preparation of aequorin

机译:重组载水母发光蛋白同工型的色谱及其制备方法

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摘要

Gradient elution chromatography of recombinant apoaequorin carried out in the presence of Ca2+ revealed two isoforms of apoaequorin, reduced and oxidized, whereas in the presence of EDTA 3 isoforms were observed. In a regeneration mixture of apoaequorin, coelenterazine, EDTA, and 2-mercaptoethanol, four isoforms were obtained, of which only one, aequorin, gave light with Ca2+. A method is described for the preparation of highly pure aequorin. The aequorin was stable in solution for approximately 10 days at 4 degreesC and pH 7.6, and then it gradually lost activity with a half-life of about 20 days until it was almost completely inactive on day 30. (C) 2003 Elsevier Science (USA). All rights reserved. [References: 42]
机译:在Ca2 +存在下进行的重组载脂蛋白母蛋白的梯度洗脱色谱显示,载脂蛋白母蛋白的两种亚型被还原和氧化,而在EDTA 3异构体中观察到。在载水母水母发光蛋白,腔肠素,EDTA和2-巯基乙醇的再生混合物中,获得了四种同工型,其中只有一种水母发光蛋白发出带有Ca2 +的光。描述了一种制备高纯度水母发光蛋白的方法。水母发光蛋白在4°C和pH 7.6下在溶液中稳定约10天,然后逐渐失去活性,半衰期约为20天,直到第30天几乎完全失活。(C)2003 Elsevier Science(USA) )。版权所有。 [参考:42]

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