引用本文:
冯志祥, 张树功, 刘启民, 倪嘉缵, 苗健, 油书恒. Tb3+和La3+与牛血清白蛋白作用的光谱研究[J]. 应用化学,
1995, 12(3): 70-72.
Citation: Feng Zhixiang, Zhang Shugong, Liu Qimin, Ni Jiazuan, Miao Jian, You Shuheng. Spectral Study on Interactions of Tb3+ and La3+ with Bovine Serum Albumin[J]. Chinese Journal of Applied Chemistry, 1995, 12(3): 70-72.
Citation: Feng Zhixiang, Zhang Shugong, Liu Qimin, Ni Jiazuan, Miao Jian, You Shuheng. Spectral Study on Interactions of Tb3+ and La3+ with Bovine Serum Albumin[J]. Chinese Journal of Applied Chemistry, 1995, 12(3): 70-72.
English
Spectral Study on Interactions of Tb3+ and La3+ with Bovine Serum Albumin
Abstract:
The interactions of lanthanium(Ⅲ) and terbium(Ⅲ) ions with bovine serum albu-mine(BSA) in an aqueous solution of hexamethylene-tetramine-HCl buffer and 0.1mol/L NaCl (pH=6.3) have been studied by UV-Vis,IR,CD and fluorescence spectroscopies. Three strong and more than five weak binding sites were found in BSA complex. The sec-ondary structure of BSA was slightly disturbed by coordination with rare earth ions. Groups in BSA molecule coordinated with rare earth ions are the β-,γ-carboxyls from the side chains of Asp and Glu residues and the carbonyls from the peptide bonds of BSA.
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Key words:
- lanthanium ion
- / terbium ion
- / bovine serum albumin
- / spectroscopy
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