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Updated: Mar 2, 2026

Luminophore Formation in Various Conformations of Bovine Serum Albumin by Binding of GoldIII
Published on: August 31, 2018
STUDIES ON THE INTERACTION BETWEEN TRIPTOLIDE AND BOVINE SERUM ALBUMIN (BSA) BY SPECTROSCOPIC AND MOLECULAR MODELING
Haidong Wang1, Hailang Shi2, Jie Pang1
1Department of Pharmacy, The First People's Hospital of Lianyungang, Jiangsu, Lianyungang 222002, PR China.
Background:
Triptolide is a major active constituent isolated from Tripterygiumwilfordii Hook F, a Chinese herbal medicine. This study investigated the intermolecular interaction between triptolide and bovine serum albumin (BSA).
Materials And Methods:
The fluorescence, circular dichroism (CD) and molecular docking methods were used to investigate the intermolecular interaction between triptolide and BSA. The binding constant, the number of binding sites, binding subdomain and the thermodynamic parameters were measured.
Results:
The results of this experiment revealed that the intrinsic fluorescence of BSA was effectively quenched by triptolide via static quenching. The experimental results of synchronous fluorescence and CD spectra showed that the conformation of BSA was changed in the presence of triptolide.
Conclusion:
It indicated that triptolide could spontaneously bind on site II (subdomain IIIA) of BSA mainly via hydrogen bonding interactions and Van der Waals force.
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