Evaluating the effect of aminoglycosides on the interaction between bovine serum albumins by atomic force microscopy.
Int J Biol Macromol
; 134: 28-35, 2019 Aug 01.
Article
en En
| MEDLINE
| ID: mdl-31063788
ABSTRACT
Characterization and determination of protein-protein interactions (PPIs) plays an important role in molecular biological science. In this study, the effect of aminoglycosides (AGs streptomycin, gentamycin, lincomycin and clindamycin) on interactions between bovine serum albumin (BSA) was evaluated employing imaging and probing adhesion event by AFM. Multi-spectroscopy and molecular docking were supplementary to investigate the acting forces of the effect. AFM measurements revealed the aggregation of BSA grains and changes of adhesion forces at single molecule level. With adhesion forces between BSA pairs decomposed by Poisson method, specific forces in streptomycin, gentamycin, lincomycin and climdamycin were obviously decreased with the rate of 33.1%, 26.4%, 32.3% and 31.3% while non-specific forces slightly decreased with 5.5%, 3.3%, 4.0% and 7.7%. Combined with results of multi-spectroscopy as well as molecular docking, the whole determination showed AGs affected PPIs by multiple forces, where the hydrogen bonding and hydration effect were the main reasons. The binding of drugs and proteins acted by hydrogen bonding affected the interaction forces between BSA. Consequently, AFM was proposed to be an effective and precise tool in application including evaluating the effects of exogenous compounds on biomacromolecular interactions and rapid screening of drug candidates to avoid potential damages in disease treatment.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Albúmina Sérica Bovina
/
Microscopía de Fuerza Atómica
/
Aminoglicósidos
Límite:
Animals
Idioma:
En
Revista:
Int J Biol Macromol
Año:
2019
Tipo del documento:
Article
Pais de publicación:
HOLANDA
/
HOLLAND
/
NETHERLANDS
/
NL
/
PAISES BAJOS
/
THE NETHERLANDS