14-Helical folding in a cyclobutane-containing β-tetrapeptide
- Autores
- Izquierdo, Sandra; Kogan, Marcelo Javier; Parella, Teodor; Moglioni, Albertina Gladys; Branchadell, Vicenc; Giralt, Ernest; Ortuño, Rosa M.
- Año de publicación
- 2004
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The efficient synthesis of tetrapeptide 5 containing, in alternation, cyclobutane and β-alanine residues is described. NMR experiments both at low temperature in CDCl3 and at 298 K in DMSO-d6 solutions show the contribution of a strong hydrogen bond in the folded major conformation of 5. Temperature coefficients and diffusion times point out a hydrogen bond involving the NH proton from the cyclobutane residue 1 whereas NOEs manifest the high rigidity of the central fragment of the molecule and are compatible with a 14-membered macrocycle. Theoretical calculations predict a most stable folded conformation corresponding to a 14-helix stabilized by a hydrogen bond between NH10 in the first residue and OC25 in the third residue. This structure remains unaltered during the molecular dynamics simulation at 298 K in chloroform. All these results provide evidence for a 14-helical folding and reveal the ability of cis-2-aminocyclobutane carboxylic acid residues to promote folded conformations when incorporated into β-peptides.
Fil: Izquierdo, Sandra. Universitat Autònoma de Barcelona; España
Fil: Kogan, Marcelo Javier. Institut de Recerca Biomédica; España
Fil: Parella, Teodor. Universitat Autònoma de Barcelona; España
Fil: Moglioni, Albertina Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
Fil: Branchadell, Vicenc. Universitat Autònoma de Barcelona; España
Fil: Giralt, Ernest. Institut de Recerca Biomédica; España
Fil: Ortuño, Rosa M.. Universitat Autònoma de Barcelona; España - Materia
-
helical folding
peptides - 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:11336/137894
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14-Helical folding in a cyclobutane-containing β-tetrapeptideIzquierdo, SandraKogan, Marcelo JavierParella, TeodorMoglioni, Albertina GladysBranchadell, VicencGiralt, ErnestOrtuño, Rosa M.helical foldingpeptideshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The efficient synthesis of tetrapeptide 5 containing, in alternation, cyclobutane and β-alanine residues is described. NMR experiments both at low temperature in CDCl3 and at 298 K in DMSO-d6 solutions show the contribution of a strong hydrogen bond in the folded major conformation of 5. Temperature coefficients and diffusion times point out a hydrogen bond involving the NH proton from the cyclobutane residue 1 whereas NOEs manifest the high rigidity of the central fragment of the molecule and are compatible with a 14-membered macrocycle. Theoretical calculations predict a most stable folded conformation corresponding to a 14-helix stabilized by a hydrogen bond between NH10 in the first residue and OC25 in the third residue. This structure remains unaltered during the molecular dynamics simulation at 298 K in chloroform. All these results provide evidence for a 14-helical folding and reveal the ability of cis-2-aminocyclobutane carboxylic acid residues to promote folded conformations when incorporated into β-peptides.Fil: Izquierdo, Sandra. Universitat Autònoma de Barcelona; EspañaFil: Kogan, Marcelo Javier. Institut de Recerca Biomédica; EspañaFil: Parella, Teodor. Universitat Autònoma de Barcelona; EspañaFil: Moglioni, Albertina Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; ArgentinaFil: Branchadell, Vicenc. Universitat Autònoma de Barcelona; EspañaFil: Giralt, Ernest. Institut de Recerca Biomédica; EspañaFil: Ortuño, Rosa M.. Universitat Autònoma de Barcelona; EspañaAmerican Chemical Society2004-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/137894Izquierdo, Sandra; Kogan, Marcelo Javier; Parella, Teodor; Moglioni, Albertina Gladys; Branchadell, Vicenc; et al.; 14-Helical folding in a cyclobutane-containing β-tetrapeptide; American Chemical Society; Journal of Organic Chemistry; 69; 15; 8-2004; 5093-50990022-3263CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jo0497555info:eu-repo/semantics/altIdentifier/doi/10.1021/jo0497555info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:22Zoai:ri.conicet.gov.ar:11336/137894instacron: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 09:36:22.387CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
14-Helical folding in a cyclobutane-containing β-tetrapeptide |
title |
14-Helical folding in a cyclobutane-containing β-tetrapeptide |
spellingShingle |
14-Helical folding in a cyclobutane-containing β-tetrapeptide Izquierdo, Sandra helical folding peptides |
title_short |
14-Helical folding in a cyclobutane-containing β-tetrapeptide |
title_full |
14-Helical folding in a cyclobutane-containing β-tetrapeptide |
title_fullStr |
14-Helical folding in a cyclobutane-containing β-tetrapeptide |
title_full_unstemmed |
14-Helical folding in a cyclobutane-containing β-tetrapeptide |
title_sort |
14-Helical folding in a cyclobutane-containing β-tetrapeptide |
dc.creator.none.fl_str_mv |
Izquierdo, Sandra Kogan, Marcelo Javier Parella, Teodor Moglioni, Albertina Gladys Branchadell, Vicenc Giralt, Ernest Ortuño, Rosa M. |
author |
Izquierdo, Sandra |
author_facet |
Izquierdo, Sandra Kogan, Marcelo Javier Parella, Teodor Moglioni, Albertina Gladys Branchadell, Vicenc Giralt, Ernest Ortuño, Rosa M. |
author_role |
author |
author2 |
Kogan, Marcelo Javier Parella, Teodor Moglioni, Albertina Gladys Branchadell, Vicenc Giralt, Ernest Ortuño, Rosa M. |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
helical folding peptides |
topic |
helical folding peptides |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The efficient synthesis of tetrapeptide 5 containing, in alternation, cyclobutane and β-alanine residues is described. NMR experiments both at low temperature in CDCl3 and at 298 K in DMSO-d6 solutions show the contribution of a strong hydrogen bond in the folded major conformation of 5. Temperature coefficients and diffusion times point out a hydrogen bond involving the NH proton from the cyclobutane residue 1 whereas NOEs manifest the high rigidity of the central fragment of the molecule and are compatible with a 14-membered macrocycle. Theoretical calculations predict a most stable folded conformation corresponding to a 14-helix stabilized by a hydrogen bond between NH10 in the first residue and OC25 in the third residue. This structure remains unaltered during the molecular dynamics simulation at 298 K in chloroform. All these results provide evidence for a 14-helical folding and reveal the ability of cis-2-aminocyclobutane carboxylic acid residues to promote folded conformations when incorporated into β-peptides. Fil: Izquierdo, Sandra. Universitat Autònoma de Barcelona; España Fil: Kogan, Marcelo Javier. Institut de Recerca Biomédica; España Fil: Parella, Teodor. Universitat Autònoma de Barcelona; España Fil: Moglioni, Albertina Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina Fil: Branchadell, Vicenc. Universitat Autònoma de Barcelona; España Fil: Giralt, Ernest. Institut de Recerca Biomédica; España Fil: Ortuño, Rosa M.. Universitat Autònoma de Barcelona; España |
description |
The efficient synthesis of tetrapeptide 5 containing, in alternation, cyclobutane and β-alanine residues is described. NMR experiments both at low temperature in CDCl3 and at 298 K in DMSO-d6 solutions show the contribution of a strong hydrogen bond in the folded major conformation of 5. Temperature coefficients and diffusion times point out a hydrogen bond involving the NH proton from the cyclobutane residue 1 whereas NOEs manifest the high rigidity of the central fragment of the molecule and are compatible with a 14-membered macrocycle. Theoretical calculations predict a most stable folded conformation corresponding to a 14-helix stabilized by a hydrogen bond between NH10 in the first residue and OC25 in the third residue. This structure remains unaltered during the molecular dynamics simulation at 298 K in chloroform. All these results provide evidence for a 14-helical folding and reveal the ability of cis-2-aminocyclobutane carboxylic acid residues to promote folded conformations when incorporated into β-peptides. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-08 |
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/11336/137894 Izquierdo, Sandra; Kogan, Marcelo Javier; Parella, Teodor; Moglioni, Albertina Gladys; Branchadell, Vicenc; et al.; 14-Helical folding in a cyclobutane-containing β-tetrapeptide; American Chemical Society; Journal of Organic Chemistry; 69; 15; 8-2004; 5093-5099 0022-3263 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/137894 |
identifier_str_mv |
Izquierdo, Sandra; Kogan, Marcelo Javier; Parella, Teodor; Moglioni, Albertina Gladys; Branchadell, Vicenc; et al.; 14-Helical folding in a cyclobutane-containing β-tetrapeptide; American Chemical Society; Journal of Organic Chemistry; 69; 15; 8-2004; 5093-5099 0022-3263 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jo0497555 info:eu-repo/semantics/altIdentifier/doi/10.1021/jo0497555 |
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 |
dc.publisher.none.fl_str_mv |
American Chemical Society |
publisher.none.fl_str_mv |
American Chemical Society |
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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1844613140139999232 |
score |
13.070432 |