Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/ph14121298 http://hdl.handle.net/11449/230072 |
Resumo: | Piperlongumine (PPL) is an alkaloid extracted from several pepper species that exhibits anti-inflammatory and anti-carcinogenic properties. Nevertheless, the molecular mode of action of PPL that confers such powerful pharmacological properties remains unknown. From this perspec-tive, spectroscopic methods aided by computational modeling were employed to characterize the interaction between PPL and nucleotide-binding domain of heat shock protein 70 (NBD/HSP70), which is involved in the pathogenesis of several diseases. Steady-state fluorescence spectroscopy along with time-resolved fluorescence revealed the complex formation based on a static quenching mechanism. Van’t Hoff analyses showed that the binding of PPL toward NBD is driven by equivalent contributions of entropic and enthalpic factors. Furthermore, IDF and Scatchard methods applied to fluorescence intensities determined two cooperative binding sites with Kb of (6.3 ± 0.2) × 104 M−1. Circular dichroism determined the thermal stability of the NBD domain and showed that PPL caused minor changes in the protein secondary structure. Computational simulations elucidated the mi-croenvironment of these interactions, showing that the binding sites are composed mainly of polar amino acids and the predominant interaction of PPL with NBD is Van der Waals in nature. |
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Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico studyCircular dichroismFluorescence spectroscopyHeat shock proteinHSP70Molecular dockingMolecular dynamicsMolecular mechanics Poisson–Boltzmann surface areaNucleotide-binding domainPiperlonguminePiperlongumine (PPL) is an alkaloid extracted from several pepper species that exhibits anti-inflammatory and anti-carcinogenic properties. Nevertheless, the molecular mode of action of PPL that confers such powerful pharmacological properties remains unknown. From this perspec-tive, spectroscopic methods aided by computational modeling were employed to characterize the interaction between PPL and nucleotide-binding domain of heat shock protein 70 (NBD/HSP70), which is involved in the pathogenesis of several diseases. Steady-state fluorescence spectroscopy along with time-resolved fluorescence revealed the complex formation based on a static quenching mechanism. Van’t Hoff analyses showed that the binding of PPL toward NBD is driven by equivalent contributions of entropic and enthalpic factors. Furthermore, IDF and Scatchard methods applied to fluorescence intensities determined two cooperative binding sites with Kb of (6.3 ± 0.2) × 104 M−1. Circular dichroism determined the thermal stability of the NBD domain and showed that PPL caused minor changes in the protein secondary structure. Computational simulations elucidated the mi-croenvironment of these interactions, showing that the binding sites are composed mainly of polar amino acids and the predominant interaction of PPL with NBD is Van der Waals in nature.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Física Instituto de Biociências Letras e Ciências Exatas (IBILCE) Universidade Estadual Paulista (UNESP), Rua Cristovão Colombo 2265School of Pharmacy University of Birmingham, EdgbastonDepartamento de Física Instituto de Biociências Letras e Ciências Exatas (IBILCE) Universidade Estadual Paulista (UNESP), Rua Cristovão Colombo 2265CAPES: 001CNPq: 141953/2017-9FAPESP: 2017/08834-9Universidade Estadual Paulista (UNESP)University of BirminghamPovinelli, Ana Paula Ribeiro [UNESP]Zazeri, Gabriel [UNESP]Jones, Alan M.Cornélio, Marinônio Lopes [UNESP]2022-04-29T08:37:31Z2022-04-29T08:37:31Z2021-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/ph14121298Pharmaceuticals, v. 14, n. 12, 2021.1424-8247http://hdl.handle.net/11449/23007210.3390/ph141212982-s2.0-85121295299Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPharmaceuticalsinfo:eu-repo/semantics/openAccess2022-04-29T08:37:31Zoai:repositorio.unesp.br:11449/230072Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:07:30.844487Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study |
title |
Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study |
spellingShingle |
Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study Povinelli, Ana Paula Ribeiro [UNESP] Circular dichroism Fluorescence spectroscopy Heat shock protein HSP70 Molecular docking Molecular dynamics Molecular mechanics Poisson–Boltzmann surface area Nucleotide-binding domain Piperlongumine |
title_short |
Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study |
title_full |
Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study |
title_fullStr |
Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study |
title_full_unstemmed |
Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study |
title_sort |
Unravelling the interaction of piperlongumine with the nucleotide-binding domain of hsp70: A spectroscopic and in silico study |
author |
Povinelli, Ana Paula Ribeiro [UNESP] |
author_facet |
Povinelli, Ana Paula Ribeiro [UNESP] Zazeri, Gabriel [UNESP] Jones, Alan M. Cornélio, Marinônio Lopes [UNESP] |
author_role |
author |
author2 |
Zazeri, Gabriel [UNESP] Jones, Alan M. Cornélio, Marinônio Lopes [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) University of Birmingham |
dc.contributor.author.fl_str_mv |
Povinelli, Ana Paula Ribeiro [UNESP] Zazeri, Gabriel [UNESP] Jones, Alan M. Cornélio, Marinônio Lopes [UNESP] |
dc.subject.por.fl_str_mv |
Circular dichroism Fluorescence spectroscopy Heat shock protein HSP70 Molecular docking Molecular dynamics Molecular mechanics Poisson–Boltzmann surface area Nucleotide-binding domain Piperlongumine |
topic |
Circular dichroism Fluorescence spectroscopy Heat shock protein HSP70 Molecular docking Molecular dynamics Molecular mechanics Poisson–Boltzmann surface area Nucleotide-binding domain Piperlongumine |
description |
Piperlongumine (PPL) is an alkaloid extracted from several pepper species that exhibits anti-inflammatory and anti-carcinogenic properties. Nevertheless, the molecular mode of action of PPL that confers such powerful pharmacological properties remains unknown. From this perspec-tive, spectroscopic methods aided by computational modeling were employed to characterize the interaction between PPL and nucleotide-binding domain of heat shock protein 70 (NBD/HSP70), which is involved in the pathogenesis of several diseases. Steady-state fluorescence spectroscopy along with time-resolved fluorescence revealed the complex formation based on a static quenching mechanism. Van’t Hoff analyses showed that the binding of PPL toward NBD is driven by equivalent contributions of entropic and enthalpic factors. Furthermore, IDF and Scatchard methods applied to fluorescence intensities determined two cooperative binding sites with Kb of (6.3 ± 0.2) × 104 M−1. Circular dichroism determined the thermal stability of the NBD domain and showed that PPL caused minor changes in the protein secondary structure. Computational simulations elucidated the mi-croenvironment of these interactions, showing that the binding sites are composed mainly of polar amino acids and the predominant interaction of PPL with NBD is Van der Waals in nature. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-01 2022-04-29T08:37:31Z 2022-04-29T08:37:31Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3390/ph14121298 Pharmaceuticals, v. 14, n. 12, 2021. 1424-8247 http://hdl.handle.net/11449/230072 10.3390/ph14121298 2-s2.0-85121295299 |
url |
http://dx.doi.org/10.3390/ph14121298 http://hdl.handle.net/11449/230072 |
identifier_str_mv |
Pharmaceuticals, v. 14, n. 12, 2021. 1424-8247 10.3390/ph14121298 2-s2.0-85121295299 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pharmaceuticals |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129586798526464 |