Article ; Online: Bovine serum albumin prevents human hemoglobin aggregation and retains its chaperone-like activity.
Journal of biomolecular structure & dynamics
2023 Volume 42, Issue 1, Page(s) 346–361
Abstract: This study investigates the ability of bovine serum albumin (BSA) to act as an extracellular chaperone (EC) on human hemoglobin (Hb) at a pH of 7.4. The best temperature for studying this behavior was determined by analyzing Hb's aggregation kinetics at ... ...
Abstract | This study investigates the ability of bovine serum albumin (BSA) to act as an extracellular chaperone (EC) on human hemoglobin (Hb) at a pH of 7.4. The best temperature for studying this behavior was determined by analyzing Hb's aggregation kinetics at multiple temperatures. 55 °C was chosen as the optimal temperature for forming Hb amyloids. BSA was then tested at various concentrations (20-100 μM) to assess its chaperone-like activity on Hb at 55 °C. At a concentration of 100 μM, BSA exhibits chaperone-like activity with a client protein:BSA ratio of 1:10. The high ratio implies that the chaperone activity of BSA is favored by the effects of macromolecular crowding. The results showed that BSA has the potential to inhibit Hb's dissociation into alpha and beta subunits and protein aggregation by inhibiting secondary nucleation. BSA also causes the depolymerization of fibrils over time. The results were validated using molecular docking and all-atom molecular dynamics simulations. MD analysis such as RMSD, RMSF, Rg, SASA, Hydrogen bond, PCA, Free energy landscape (FEL) revealed that the stability of hemoglobin is greater when it is bound to BSA compared to unbound state. The study suggests that BSA can potentially bind to Hb dimers and reduce excitonic interactions, which reduces Hb aggregation. These results are consistent with the aggregation kinetics experiments.Communicated by Ramaswamy H. Sarma. |
---|---|
MeSH term(s) | Humans ; Binding Sites ; Protein Binding ; Molecular Docking Simulation ; Serum Albumin, Bovine/chemistry ; Amyloid/metabolism ; Hemoglobins/metabolism ; Thermodynamics |
Chemical Substances | Serum Albumin, Bovine (27432CM55Q) ; Amyloid ; Hemoglobins |
Language | English |
Publishing date | 2023-03-28 |
Publishing country | England |
Document type | Journal Article |
ZDB-ID | 49157-3 |
ISSN | 1538-0254 ; 0739-1102 |
ISSN (online) | 1538-0254 |
ISSN | 0739-1102 |
DOI | 10.1080/07391102.2023.2192802 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
In stock of ZB MED Cologne/Königswinter
Zs.A 2093: Show issues | Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (1.OG) ab Jg. 2022: Lesesaal (EG) |
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.