The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin
- Autores
- Espinosa Silva, Yanis Ricardo; Caffarena, Ernesto Raúl; Grigera, Jose Raul
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- An exciting debate arises when microscopic mechanisms involved in the denaturation of proteins at high pressures are explained. In particular, the issue emerges when the hydrophobic effect is invoked, given that hydrophobicity cannot elucidate by itself the volume changes measured during protein unfolding. In this work, we study by the use of molecular dynamics simulations and essential dynamics analysis the relation between the solvation dynamics, volume, and water structure when apomyoglobin is subjected to a hydrostatic pressure regime. Accordingly, the mechanism of cold denaturation of proteins under high-pressure can be related to the disruption of the hydrogen-bond network of water favoring the coexistence of two states, low-density and high-density water, which directly implies in the formation of a molten globule once the threshold of 200 MPa has been overcome.
Fil: Espinosa Silva, Yanis Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
Fil: Caffarena, Ernesto Raúl. Ministerio de Salud de Brasil. Fundación Oswaldo Cruz. Programa de Computación Cientifica. Biofísica Computacional y Modelaje Molecular; Brasil
Fil: Grigera, Jose Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentina - Materia
-
protein volume
Hydrostatic pressure
Hydrophobicity - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/125855
Ver los metadatos del registro completo
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The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobinEspinosa Silva, Yanis RicardoCaffarena, Ernesto RaúlGrigera, Jose Raulprotein volumeHydrostatic pressureHydrophobicityhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1An exciting debate arises when microscopic mechanisms involved in the denaturation of proteins at high pressures are explained. In particular, the issue emerges when the hydrophobic effect is invoked, given that hydrophobicity cannot elucidate by itself the volume changes measured during protein unfolding. In this work, we study by the use of molecular dynamics simulations and essential dynamics analysis the relation between the solvation dynamics, volume, and water structure when apomyoglobin is subjected to a hydrostatic pressure regime. Accordingly, the mechanism of cold denaturation of proteins under high-pressure can be related to the disruption of the hydrogen-bond network of water favoring the coexistence of two states, low-density and high-density water, which directly implies in the formation of a molten globule once the threshold of 200 MPa has been overcome.Fil: Espinosa Silva, Yanis Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; ArgentinaFil: Caffarena, Ernesto Raúl. Ministerio de Salud de Brasil. Fundación Oswaldo Cruz. Programa de Computación Cientifica. Biofísica Computacional y Modelaje Molecular; BrasilFil: Grigera, Jose Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; ArgentinaAmerican Institute of Physics2019-02-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125855Espinosa Silva, Yanis Ricardo; Caffarena, Ernesto Raúl; Grigera, Jose Raul; The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin; American Institute of Physics; Journal of Chemical Physics; 150; 7; 21-2-2019; 1-100021-9606CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.5080942info:eu-repo/semantics/altIdentifier/doi/10.1063/1.5080942info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:57Zoai:ri.conicet.gov.ar:11336/125855instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:40:57.889CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin |
title |
The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin |
spellingShingle |
The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin Espinosa Silva, Yanis Ricardo protein volume Hydrostatic pressure Hydrophobicity |
title_short |
The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin |
title_full |
The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin |
title_fullStr |
The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin |
title_full_unstemmed |
The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin |
title_sort |
The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin |
dc.creator.none.fl_str_mv |
Espinosa Silva, Yanis Ricardo Caffarena, Ernesto Raúl Grigera, Jose Raul |
author |
Espinosa Silva, Yanis Ricardo |
author_facet |
Espinosa Silva, Yanis Ricardo Caffarena, Ernesto Raúl Grigera, Jose Raul |
author_role |
author |
author2 |
Caffarena, Ernesto Raúl Grigera, Jose Raul |
author2_role |
author author |
dc.subject.none.fl_str_mv |
protein volume Hydrostatic pressure Hydrophobicity |
topic |
protein volume Hydrostatic pressure Hydrophobicity |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
An exciting debate arises when microscopic mechanisms involved in the denaturation of proteins at high pressures are explained. In particular, the issue emerges when the hydrophobic effect is invoked, given that hydrophobicity cannot elucidate by itself the volume changes measured during protein unfolding. In this work, we study by the use of molecular dynamics simulations and essential dynamics analysis the relation between the solvation dynamics, volume, and water structure when apomyoglobin is subjected to a hydrostatic pressure regime. Accordingly, the mechanism of cold denaturation of proteins under high-pressure can be related to the disruption of the hydrogen-bond network of water favoring the coexistence of two states, low-density and high-density water, which directly implies in the formation of a molten globule once the threshold of 200 MPa has been overcome. Fil: Espinosa Silva, Yanis Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina Fil: Caffarena, Ernesto Raúl. Ministerio de Salud de Brasil. Fundación Oswaldo Cruz. Programa de Computación Cientifica. Biofísica Computacional y Modelaje Molecular; Brasil Fil: Grigera, Jose Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentina |
description |
An exciting debate arises when microscopic mechanisms involved in the denaturation of proteins at high pressures are explained. In particular, the issue emerges when the hydrophobic effect is invoked, given that hydrophobicity cannot elucidate by itself the volume changes measured during protein unfolding. In this work, we study by the use of molecular dynamics simulations and essential dynamics analysis the relation between the solvation dynamics, volume, and water structure when apomyoglobin is subjected to a hydrostatic pressure regime. Accordingly, the mechanism of cold denaturation of proteins under high-pressure can be related to the disruption of the hydrogen-bond network of water favoring the coexistence of two states, low-density and high-density water, which directly implies in the formation of a molten globule once the threshold of 200 MPa has been overcome. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-02-21 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/125855 Espinosa Silva, Yanis Ricardo; Caffarena, Ernesto Raúl; Grigera, Jose Raul; The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin; American Institute of Physics; Journal of Chemical Physics; 150; 7; 21-2-2019; 1-10 0021-9606 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/125855 |
identifier_str_mv |
Espinosa Silva, Yanis Ricardo; Caffarena, Ernesto Raúl; Grigera, Jose Raul; The role of hydrophobicity in the cold denaturation of proteins under high pressure: A study on apomyoglobin; American Institute of Physics; Journal of Chemical Physics; 150; 7; 21-2-2019; 1-10 0021-9606 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.5080942 info:eu-repo/semantics/altIdentifier/doi/10.1063/1.5080942 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Institute of Physics |
publisher.none.fl_str_mv |
American Institute of Physics |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614439290011648 |
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13.070432 |