Influence of complex formation with tetraantraquinoporphyrazines and tetrasulphophthalocyanine on thermal stability of bovine serum albumin

2011 ◽  
Vol 15 (04) ◽  
pp. 223-229 ◽  
Author(s):  
Natalia Lebedeva ◽  
Tatyana Popova ◽  
Malgorzata Kozbial ◽  
Malgorzata Wszelaka-Rylik ◽  
Yuri Gubarev ◽  
...  

Interaction between bovine serum albumin (BSA) and tetraantraquinoporphyrazines (TAP) and tetrasulphophthalocyanine (Pc) aluminum hydroxide was studied by means of electron absorption spectroscopy, IR spectroscopy, fluorescence spectroscopy and differential scanning calorimetry. It was found that the complex formation of BSA with the TAPs results in increase of thermal stability of the protein while Pc does not have remarkable influence on the protein thermal denaturation.

2020 ◽  
Vol 22 (42) ◽  
pp. 24410-24422
Author(s):  
Kavya Bhakuni ◽  
Niketa Yadav ◽  
Pannuru Venkatesu

This study unravels the effect of a novel solvent medium designed by amalgamation of macromolecular crowders and deep eutectic solvents (DESs) on bovine serum albumin (BSA).


2018 ◽  
Vol 74 ◽  
pp. 267-274 ◽  
Author(s):  
Monique Barreto Santos ◽  
Carlos Wanderlei Piler de Carvalho ◽  
Edwin Elard Garcia-Rojas

2007 ◽  
Vol 72 (4) ◽  
pp. 331-337 ◽  
Author(s):  
Sanja Ostojic ◽  
Vida Dragutinovic ◽  
Miodrag Kicanovic ◽  
Branislav Simonovic

The thermal denaturation of bovine serum albumin (BSA) is a kinetically and thermodynamically controlled process. The effects of zinc binding to bovine serum albumin (BSA), followed by differential scanning calorimetry (DSC), were investigated in this work, with the purpose of obtaining a better understanding of the albumin/zinc interaction. From the DSC curves, the thermodynamic parameters of protein denaturation were obtained, i.e., the temperature of thermal transition maximum (T m), calorimetric enthalpy (?Hcal), van't Hoff enthalpy (?HvH), the number of binding sites (I, II), the binding constants for each binding site (K bI, K bII) and the average number of ligands bound per mole of native protein X N. The thermodynamic data of protein unfolding showed that zinc binding to bovine serum albumin increases the stability of the protein (higher values of ?Hcal) and the different ratio ?Hcal/?HvH indicates the perturbation of the protein during thermal denaturation.


2011 ◽  
Vol 694 ◽  
pp. 160-164 ◽  
Author(s):  
Yong Liu ◽  
Yan Sun ◽  
Yan Li Li ◽  
Shao Chun Xu ◽  
Yao Xing Xu

In this paper, the properties of chitosan nanoparticles and bovine serum albumin-loaded chitosan nanoparticles prepared with sodium tripolyphosphate at different pH values were discussed. Interactions in chitosan nanoparticles and bovine serum albumin-loaded chitosan nanoparticles were analyzed by Fourier transform infrared spectroscopy and differential scanning calorimetry. The results indicated that there were more complicated interactions in chitosan nanoparticles prepared at different pH values. When the pH values were lower or higher than isoelectric point value of target protein (bovine serum albumin), the big different interactions occurred in chitosan nanoparticles. These differences also would result in different releasing properties.


2015 ◽  
Vol 17 (2) ◽  
pp. 1114-1133 ◽  
Author(s):  
Bhupender S. Gupta ◽  
Mohamed Taha ◽  
Ming-Jer Lee

In this study, we have analyzed the influence of four biological buffers on the thermal stability of bovine serum albumin (BSA) using dynamic light scattering (DLS).


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