Are accurate computations of the 13C' shielding feasible at the DFT level of theory?
- Autores
- Vila, Jorge Alberto; Arnautova, Yelena A.; Martín, Osvaldo Antonio; Scheraga, Harold A.
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The goal of this study is twofold. First, to investigate the relative influence of the main structural factors affecting the computation of the 13C0 shielding, namely, the conformation of the residue itself and the next nearest-neighbor effects. Second, to determine whether calculation of the 13C0 shielding at the density functional level of theory (DFT), with an accuracy similar to that of the 13Ca shielding, is feasible with the existing computational resources. The DFT calculations, carried out for a large number of possible conformations of the tripeptide Ac-GXY-NMe, with different combinations of X and Y residues, enable us to conclude that the accurate computation of the 13C0 shielding for a given residue X depends on the: (i) (/,w) backbone torsional angles of X; (ii) side-chain conformation of X; (iii) (/,w) torsional angles of Y; and (iv) identity of residue Y. Consequently, DFT-based quantum mechanical calculations of the 13C0 shielding, with all these factors taken into account, are two orders of magnitude more CPU demanding than the computation, with similar accuracy, of the 13Ca shielding. Despite not considering the effect of the possible hydrogen bond interaction of the carbonyl oxygen, this work contributes to our general understanding of the main structural factors affecting the accurate computation of the 13C0 shielding in proteins and may spur significant progress in effort to develop new validation methods for protein structures.
Fil: Vila, Jorge Alberto. Cornell University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis ; Argentina
Fil: Arnautova, Yelena A.. Molsoft L.L.C.; Estados Unidos
Fil: Martín, Osvaldo Antonio. Cornell University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis ; Argentina
Fil: Scheraga, Harold A.. Cornell University; Estados Unidos - Materia
-
Dft-Computation of Shielding
Protein Validation
Protein Determination
Factors Affecting Shielding Computation
Heavy Nuclei Shielding - 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:11336/31301
Ver los metadatos del registro completo
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Are accurate computations of the 13C' shielding feasible at the DFT level of theory?Vila, Jorge AlbertoArnautova, Yelena A.Martín, Osvaldo AntonioScheraga, Harold A.Dft-Computation of ShieldingProtein ValidationProtein DeterminationFactors Affecting Shielding ComputationHeavy Nuclei Shieldinghttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The goal of this study is twofold. First, to investigate the relative influence of the main structural factors affecting the computation of the 13C0 shielding, namely, the conformation of the residue itself and the next nearest-neighbor effects. Second, to determine whether calculation of the 13C0 shielding at the density functional level of theory (DFT), with an accuracy similar to that of the 13Ca shielding, is feasible with the existing computational resources. The DFT calculations, carried out for a large number of possible conformations of the tripeptide Ac-GXY-NMe, with different combinations of X and Y residues, enable us to conclude that the accurate computation of the 13C0 shielding for a given residue X depends on the: (i) (/,w) backbone torsional angles of X; (ii) side-chain conformation of X; (iii) (/,w) torsional angles of Y; and (iv) identity of residue Y. Consequently, DFT-based quantum mechanical calculations of the 13C0 shielding, with all these factors taken into account, are two orders of magnitude more CPU demanding than the computation, with similar accuracy, of the 13Ca shielding. Despite not considering the effect of the possible hydrogen bond interaction of the carbonyl oxygen, this work contributes to our general understanding of the main structural factors affecting the accurate computation of the 13C0 shielding in proteins and may spur significant progress in effort to develop new validation methods for protein structures.Fil: Vila, Jorge Alberto. Cornell University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis ; ArgentinaFil: Arnautova, Yelena A.. Molsoft L.L.C.; Estados UnidosFil: Martín, Osvaldo Antonio. Cornell University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis ; ArgentinaFil: Scheraga, Harold A.. Cornell University; Estados UnidosWiley2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31301Vila, Jorge Alberto; Arnautova, Yelena A.; Martín, Osvaldo Antonio; Scheraga, Harold A.; Are accurate computations of the 13C' shielding feasible at the DFT level of theory?; Wiley; Journal Of Computational Chemistry; 35; 4; 2-2014; 309-3120192-8651CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/jcc.23499/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1002/jcc.23499info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:58:00Zoai:ri.conicet.gov.ar:11336/31301instacron: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 09:58:00.533CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Are accurate computations of the 13C' shielding feasible at the DFT level of theory? |
title |
Are accurate computations of the 13C' shielding feasible at the DFT level of theory? |
spellingShingle |
Are accurate computations of the 13C' shielding feasible at the DFT level of theory? Vila, Jorge Alberto Dft-Computation of Shielding Protein Validation Protein Determination Factors Affecting Shielding Computation Heavy Nuclei Shielding |
title_short |
Are accurate computations of the 13C' shielding feasible at the DFT level of theory? |
title_full |
Are accurate computations of the 13C' shielding feasible at the DFT level of theory? |
title_fullStr |
Are accurate computations of the 13C' shielding feasible at the DFT level of theory? |
title_full_unstemmed |
Are accurate computations of the 13C' shielding feasible at the DFT level of theory? |
title_sort |
Are accurate computations of the 13C' shielding feasible at the DFT level of theory? |
dc.creator.none.fl_str_mv |
Vila, Jorge Alberto Arnautova, Yelena A. Martín, Osvaldo Antonio Scheraga, Harold A. |
author |
Vila, Jorge Alberto |
author_facet |
Vila, Jorge Alberto Arnautova, Yelena A. Martín, Osvaldo Antonio Scheraga, Harold A. |
author_role |
author |
author2 |
Arnautova, Yelena A. Martín, Osvaldo Antonio Scheraga, Harold A. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Dft-Computation of Shielding Protein Validation Protein Determination Factors Affecting Shielding Computation Heavy Nuclei Shielding |
topic |
Dft-Computation of Shielding Protein Validation Protein Determination Factors Affecting Shielding Computation Heavy Nuclei Shielding |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The goal of this study is twofold. First, to investigate the relative influence of the main structural factors affecting the computation of the 13C0 shielding, namely, the conformation of the residue itself and the next nearest-neighbor effects. Second, to determine whether calculation of the 13C0 shielding at the density functional level of theory (DFT), with an accuracy similar to that of the 13Ca shielding, is feasible with the existing computational resources. The DFT calculations, carried out for a large number of possible conformations of the tripeptide Ac-GXY-NMe, with different combinations of X and Y residues, enable us to conclude that the accurate computation of the 13C0 shielding for a given residue X depends on the: (i) (/,w) backbone torsional angles of X; (ii) side-chain conformation of X; (iii) (/,w) torsional angles of Y; and (iv) identity of residue Y. Consequently, DFT-based quantum mechanical calculations of the 13C0 shielding, with all these factors taken into account, are two orders of magnitude more CPU demanding than the computation, with similar accuracy, of the 13Ca shielding. Despite not considering the effect of the possible hydrogen bond interaction of the carbonyl oxygen, this work contributes to our general understanding of the main structural factors affecting the accurate computation of the 13C0 shielding in proteins and may spur significant progress in effort to develop new validation methods for protein structures. Fil: Vila, Jorge Alberto. Cornell University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis ; Argentina Fil: Arnautova, Yelena A.. Molsoft L.L.C.; Estados Unidos Fil: Martín, Osvaldo Antonio. Cornell University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis ; Argentina Fil: Scheraga, Harold A.. Cornell University; Estados Unidos |
description |
The goal of this study is twofold. First, to investigate the relative influence of the main structural factors affecting the computation of the 13C0 shielding, namely, the conformation of the residue itself and the next nearest-neighbor effects. Second, to determine whether calculation of the 13C0 shielding at the density functional level of theory (DFT), with an accuracy similar to that of the 13Ca shielding, is feasible with the existing computational resources. The DFT calculations, carried out for a large number of possible conformations of the tripeptide Ac-GXY-NMe, with different combinations of X and Y residues, enable us to conclude that the accurate computation of the 13C0 shielding for a given residue X depends on the: (i) (/,w) backbone torsional angles of X; (ii) side-chain conformation of X; (iii) (/,w) torsional angles of Y; and (iv) identity of residue Y. Consequently, DFT-based quantum mechanical calculations of the 13C0 shielding, with all these factors taken into account, are two orders of magnitude more CPU demanding than the computation, with similar accuracy, of the 13Ca shielding. Despite not considering the effect of the possible hydrogen bond interaction of the carbonyl oxygen, this work contributes to our general understanding of the main structural factors affecting the accurate computation of the 13C0 shielding in proteins and may spur significant progress in effort to develop new validation methods for protein structures. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02 |
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/11336/31301 Vila, Jorge Alberto; Arnautova, Yelena A.; Martín, Osvaldo Antonio; Scheraga, Harold A.; Are accurate computations of the 13C' shielding feasible at the DFT level of theory?; Wiley; Journal Of Computational Chemistry; 35; 4; 2-2014; 309-312 0192-8651 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/31301 |
identifier_str_mv |
Vila, Jorge Alberto; Arnautova, Yelena A.; Martín, Osvaldo Antonio; Scheraga, Harold A.; Are accurate computations of the 13C' shielding feasible at the DFT level of theory?; Wiley; Journal Of Computational Chemistry; 35; 4; 2-2014; 309-312 0192-8651 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://onlinelibrary.wiley.com/doi/10.1002/jcc.23499/abstract info:eu-repo/semantics/altIdentifier/doi/10.1002/jcc.23499 |
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 application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
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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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1844613731412082688 |
score |
13.070432 |