期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 333, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molliq.2021.115953
关键词
Serum albumin; Morin; Isothermal titration calorimetry; Differential scanning calorimetry; Molecular docking; Molecular dynamics
资金
- EU (ERDF)
- Romanian Government [19/01.03.2009]
- Romanian National Authority for Scientific Research, CNCS-UEFISCDI [PN-III-P4-ID-PCE-2016-0734]
Morin was found to have two binding sites with bovine serum albumin and could increase the thermal stability of the protein. Molecular docking and dynamic simulations supported the binding receptors of Morin with BSA. The dual action of Morin was shown to stabilize the protein structure and promote aggregation.
The interaction of morin (Mor) with bovine serum albumin (BSA) was investigated using calorimetric, spectroscopic and computational methods. The ligand binding to protein has been studied under physiological conditions at various temperatures using isothermal titration calorimetry (ITC). Furthermore, the enthalpy (Delta H), entropy (Delta S) and heat capacity (Delta C-p) changes of ligand-protein complex formation were also calculated. The results indicated two sites for Mor binding with BSA. The presence of Mor in higher concentration caused an increased thermal stability of protein proved by differential scanning calorimetry (DSC) measurements. Molecular docking and dynamics simulations supported Sudlow's sites I and II of BSA as binding receptors for Mor. The dual action of ligand binding was demonstrated: stabilizer of the native protein structure up to the denaturation temperature and promoter of aggregation above this temperature. (C) 2021 Elsevier B.V. All rights reserved.
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