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Stabilization of apo alpha-lactalbumin by binding of epigallocatechin-3-gallate: Experimental and molecular dynamics study
dc.creator | Radibratović, Milica | |
dc.creator | Al-Hanish, Ayah | |
dc.creator | Minić, Simeon L. | |
dc.creator | Radomirović, Mirjana Ž. | |
dc.creator | Milčić, Miloš K. | |
dc.creator | Stanić-Vučinić, Dragana | |
dc.creator | Ćirković-Veličković, Tanja | |
dc.date.accessioned | 2022-01-19T09:09:34Z | |
dc.date.available | 2019-11-06 | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0308-8146 | |
dc.identifier.uri | http://cherry.chem.bg.ac.rs/handle/123456789/4848 | |
dc.description.abstract | α-Lactalbumin (ALA) is a Ca2+-binding protein which constitutes up to 20% of whey protein. At acidic pH, and in the apo-state at elevated temperatures, ALA is the classic 'molten globule' (MG). This study examined epigallo-catechin-3-gallate (EGCG) binding to ALA in its apo form (apoALA) and stabilizing effect on protein structure thereof. EGCG binds to apoALA in both native and MG state. The complex of EGCG and ALA is more stable to thermal denaturation. The docking analysis and molecular dynamic simulation (MDS) showed that Ca2+ removal decreased conformational stability of ALA, because of the local destabilization of Ca2+-binding region. EGCG binding to apoALA increases its stability by reverting of conformation and stability of Ca2+-binding region. Therefore, EGCG-induced thermal stability of apoALA is based on increased apoALA conformational rigidity. This study implies that during gastric digestion of tea with milk EGCG would remain bound to ALA, albeit in the Ca2+-free form. | sr |
dc.language.iso | en | sr |
dc.publisher | Elsevier | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172024/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/810752/EU// | sr |
dc.relation.isversionof | https://cherry.chem.bg.ac.rs/handle/123456789/3733 | |
dc.relation.isversionof | https://doi.org/10.1016/j.foodchem.2018.11.038 | |
dc.relation.isreferencedby | https://cherry.chem.bg.ac.rs/handle/123456789/4849 | |
dc.rights | embargoedAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Food Chemistry | sr |
dc.subject | Apo α-Lactalbumin | sr |
dc.subject | Epigallocatechin-3-gallate | sr |
dc.subject | Fluorescence quenching | sr |
dc.subject | Molecular dynamics simulation | sr |
dc.subject | Noncovalent interactions | sr |
dc.subject | Protein stability | sr |
dc.title | Stabilization of apo alpha-lactalbumin by binding of epigallocatechin-3-gallate: Experimental and molecular dynamics study | sr |
dc.type | article | sr |
dc.rights.license | BY-NC-ND | sr |
dc.citation.volume | 278 | |
dc.citation.spage | 388 | |
dc.citation.epage | 395 | |
dc.identifier.wos | 000453529300048 | |
dc.identifier.doi | 10.1016/j.foodchem.2018.11.038 | |
dc.citation.rank | aM21 | |
dc.identifier.pmid | 30583389 | |
dc.description.other | This is the peer-reviewed version of the following article: Radibratović, M.; Al-Hanish, A.; Minić, S. L.; Radomirović, M. Ž.; Milčić, M. K.; Stanić-Vučinić, D.; Ćirković-Veličković, T. Stabilization of Apo Alpha-Lactalbumin by Binding of Epigallocatechin-3-Gallate: Experimental and Molecular Dynamics Study. Food Chemistry 2019, 278, 388–395. [https://doi.org/10.1016/j.foodchem.2018.11.038]. | |
dc.description.other | Supplementary material: [https://cherry.chem.bg.ac.rs/handle/123456789/4849] | |
dc.type.version | acceptedVersion | sr |
dc.identifier.scopus | 2-s2.0-85056756045 | |
dc.identifier.fulltext | http://cherry.chem.bg.ac.rs/bitstream/id/28812/Stabilization_of_apo_acc_2019.pdf |