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[慢性非球形红细胞溶血性贫血患者红细胞中葡萄糖-6-磷酸脱氢酶的新变体(G-6-PD“卡卢加”)]

[New variant of glucose-6-phosphate dehydrogenase (G-6-PD "Kaluga") from erythrocytes of a patient with chronic nonspherocytic hemolytic anemia].

作者信息

Shatskaia T L, Krasnopol'skaia K D, Idel'son L I

出版信息

Vopr Med Khim. 1976 Nov-Dec;22(6):764-8.

PMID:17221
Abstract

Properties of a new form of glucose-6-phosphate dehydrogenase (G6PD) from erythrocytes, called "Kaluga", are described. The enzyme was isolated from erythrocytes of a patient with chronic non-spherocytic hemolytic anemia; in the blood cells 20% of the G6PD activity was maintained as compared with normal state. The partially purified enzyme was shown to be unstable in electrophoresis, it possessed a biphase type of pH-optima; Km value for NADP was decreased for glucose-6-phosphate Km value was normal. The thermostability of G6PD was normal at 46 within 1 hr.

摘要

描述了一种来自红细胞的新型葡萄糖-6-磷酸脱氢酶(G6PD)“卡卢加”的特性。该酶从一名慢性非球形细胞溶血性贫血患者的红细胞中分离得到;与正常状态相比,血细胞中G6PD活性维持在20%。部分纯化的酶在电泳中显示不稳定,具有双相pH最适类型;NADP的Km值降低,而葡萄糖-6-磷酸的Km值正常。G6PD在46℃下1小时内的热稳定性正常。

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