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Soluble Tankyrase Located in Cytosol of Human Embryonic Kidney Cell Line 293

机译:可溶性tankyrase位于人类胚胎肾细胞系293细胞质中。

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摘要

We studied the subcellular localization of trankyrase in primary and immortalized human cell cultures. In embryonic kidney cell line 293 the enzyme was excluded from the nuclei and distributed in fractions of soluble cytosolic proteins and low-density microsomes. Newly revealed cytosolic tankyrase in its poly (ADP-ribosyl) ated form was passed throught a Sepharose 2B column and eluted as an apparently monomeric protein. The cytosolic localization of the enzyme correlated with its relatively high activity in the 293 cell line in comparison to eight other studied cell types.
机译:我们研究了在原代和永生化的人类细胞培养物中,曲霉酶的亚细胞定位。在胚胎肾细胞系293中,该酶从细胞核中排除,并分布在可溶性胞质蛋白和低密度微粒体中。新发现的聚(ADP-核糖基)化形式的胞质tankyrase通过Sepharose 2B色谱柱洗脱,并以明显的单体蛋白形式洗脱。与其他八种研究细胞类型相比,该酶在293细胞系中的胞质定位与其相对较高的活性有关。

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