scholarly journals Interaction of Flavonoids from Woodwardia unigemmata with Bovine Serum Albumin (BSA): Application of Spectroscopic Techniques and Molecular Modeling Methods

Molecules ◽  
2017 ◽  
Vol 22 (8) ◽  
pp. 1317 ◽  
Author(s):  
Rui Ma ◽  
Hong Pan ◽  
Tao Shen ◽  
Peng Li ◽  
Yanan Chen ◽  
...  
2021 ◽  
Vol 22 (4) ◽  
pp. 1925
Author(s):  
Katarína Golianová ◽  
Samuel Havadej ◽  
Valéria Verebová ◽  
Jozef Uličný ◽  
Beáta Holečková ◽  
...  

The interactions of epoxiconazole and prothioconazole with human serum albumin and bovine serum albumin were investigated using spectroscopic methods complemented with molecular modeling. Spectroscopic techniques showed the formation of pesticide/serum albumin complexes with the static type as the dominant mechanism. The association constants ranged from 3.80 × 104–6.45 × 105 L/mol depending on the pesticide molecule (epoxiconazole, prothioconazole) and albumin type (human or bovine serum albumin). The calculated thermodynamic parameters revealed that the binding of pesticides into serum albumin macromolecules mainly depended on hydrogen bonds and van der Waals interactions. Synchronous fluorescence spectroscopy and the competitive experiments method showed that pesticides bind to subdomain IIA, near tryptophan; in the case of bovine serum albumin also on the macromolecule surface. Concerning prothioconazole, we observed the existence of an additional binding site at the junction of domains I and III of serum albumin macromolecules. These observations were corroborated well by molecular modeling predictions. The conformation changes in secondary structure were characterized by circular dichroism, three-dimensional fluorescence, and UV/VIS absorption methods.


2013 ◽  
Vol 14 (7) ◽  
pp. 14185-14203 ◽  
Author(s):  
Hongliang Xu ◽  
Nannan Yao ◽  
Haoran Xu ◽  
Tianshi Wang ◽  
Guiying Li ◽  
...  

2013 ◽  
Vol 40 (7) ◽  
pp. 4397-4404 ◽  
Author(s):  
Ran Mi ◽  
Pei-Qi Li ◽  
Yan-Jun Hu ◽  
Xiao-Yang Fan ◽  
Hai-Ying Li ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document