English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/51961
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Molecular recognition of N-protected dipeptides by pseudopeptidic macrocycles: a comparative study of the supramolecular complexes by ESI-MS and NMR

AuthorsAlfonso, Ignacio; Bolte, Michael; Bru, Miriam; Burguete, M. Isabel; Luis, Santiago V.; Vicent, Cristian
Issue Date2010
PublisherRoyal Society of Chemistry (Great Britain)
CitationOrganic and Biomolecular Chemistry
AbstractThe molecular recognition properties of pseudopeptidic macrocycles have been studied by ESI-MS and NMR spectroscopy, as highly complementary experimental techniques in solution and in the gas phase. We used ESI-MS competition experiments for the high throughput screening of the supramolecular interaction between four macrocyclic receptors and different peptide-like substrates in solution, rendering the best-fitted host–guest pairs. Further insights on the non-covalent recognition process in the gas-phase were obtained through collision induced dissociation (CID) experiments. Solution studies using NMR spectroscopy (1H NMR titrations, NOESY and DOSY) were carried out to prove the validity of ESI-MS as a high-throughput screening method for studying the molecular recognition of the investigated pseudopeptidic macrocycles. A clear selectivity for N-protected dipeptides over N-protected amino acids, and a slight preference for dipeptides bearing aromatic side chains were observed. On the basis of the results obtained from this approach, a mode of binding has been proposed.
Publisher version (URL)http://dx.doi.org/10.1039/B924981H
Appears in Collections:(IQAC) Artículos
Files in This Item:
File Description SizeFormat 
Molecular recognition of N-protected dipeptides.pdf554,46 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.