Please use this identifier to cite or link to this item:
metadata.artigo.dc.title: Is the bioconformation of 5-deoxy-5-fluoro-D-xylulose affected by intramolecular hydrogen bonds?
metadata.artigo.dc.creator: Guimarães, Maria C.
Silla, Josué M.
Cunha, Elaine Fontes Ferreira da
Ramalho, Teodorico C.
Freitas, Matheus P.
metadata.artigo.dc.publisher: Royal Society of Chemistry
metadata.artigo.dc.identifier.citation: GUIMARÃES, M. C. et al. Is the bioconformation of 5-deoxy-5-fluoro-D-xylulose affected by intramolecular hydrogen bonds? RSC Advances: An International Journal to Further the Chemical Sciences, [S.l.], v. 6,p. 111681–111687, 2016.
metadata.artigo.dc.description.abstract: 5-Deoxy-5-fluoro-D-xylulose (DFX) binds to the xylulokinase enzyme and, as a free ligand, it has preferential conformations governed by intramolecular interactions, such as hydrogen bonds and hyperconjugative interactions. The role of intramolecular hydrogen bonds on the bioconformation of DFX has not been studied yet, despite the relevance of this topic to explain the mode of interaction between the ligand and enzyme and, therefore, the action mechanism of this molecule. DFX presents several conformations in the gas phase and implicit water, as determined by theoretical calculations, but the main optimized geometries do not match the bioactive conformation nor the most stable docked structure. This indicates that even expected strong interactions, such as hydrogen bonds, are overcome by the enzyme induced fit of DFX. The natural consequence of this finding in three-dimensional quantitative structure–activity relationship (3D-QSAR) analysis is that the use of conformations obtained in a receptor-free environment can cause misinterpretation of the chemical and biological results.
metadata.artigo.dc.language: en_US
Appears in Collections:DQI - Artigos publicados em periódicos

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.