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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. shu

Spectral Study on Interactions of Tb³⁺ and La³⁺ with Bovine Serum Albumin

1.
Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
2.
Department of Biochemistry, Henan Medical University, Zhengzhou

Received Date: 30 August 1994
Revised Date: 31 December 1994

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.
- lanthanium ion,
- terbium ion,
- bovine serum albumin,
- spectroscopy
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Spectral Study on Interactions of Tb3+ and La3+ with Bovine Serum Albumin

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Spectral Study on Interactions of Tb³⁺ and La³⁺ with Bovine Serum Albumin