波谱学杂志 ›› 1996, Vol. 13 ›› Issue (5): 429-433.

• 研究论文 • 上一篇    下一篇

Molt-4细胞内游离镁离子浓度的31P NMR测定

黄荣清1, 杜泽涵2, 颜贤忠2, 李光玉2, 冯锐2   

  1. 1. 军事医学科学院放射医学研究所, 北京 100850;
    2. 国家生物医学分析中心, 北京 100850
  • 收稿日期:1995-12-08 修回日期:1996-01-22 出版日期:1996-10-05 发布日期:2018-01-17

THE DETERMINATION OF CYTOSOLIC FREE MAGNESIUM ION CONCENTRATION IN HUMAN LYPHOMA CELL LINE Molt-4 BY USING 31P NMR

Huang Rongqing1, Du Zehan2, Yan Xianzhong2, Li Guangyu2, Feng Rui2   

  1. Institute of Radiation Medicine, National centre of Biomedical Analysis, Academy of Military Medical Science, Beijing 100850
  • Received:1995-12-08 Revised:1996-01-22 Online:1996-10-05 Published:2018-01-17

摘要: 通过测量人淋巴瘤白血病细胞MOlt-4的31P谱中ATP的α磷和β磷的化学位移差值,得出细胞内Mg2+与ATP结合的复合物MgATP和整个ATP量的比值,计算得到Molt-4细胞内游离Mg2+浓度为0.258mmol/L.与其它分析方法相比,31P NMR测定细胞内游离Mg2+浓度具有对细胞样品无损伤的优点.

关键词: 游离Mg2+, 31P NMR, MOlt-4细胞

Abstract: Based upon a measurement of chemical shift differences between the α phosphoryl and β phosphoryl resonances in the 31P spectrum of intracellular ATP in human lyphoma cell line Molt-4, the fraction of total ATP that is complexed to Mg2+ was estimated. Cytosolic free magnesium ion concentration in Molt-4 cells was determined noninvasively to be 0.258 mmol/L.

Key words: Free Mg2+, 31P NMR, Molt-4 cells