Glucose–Nucleobase Pseudo Base Pairs: Biomolecular Interactions within DNA
Noncovalent forces rule the interactions between biomolecules. Inspired by a biomolecular interaction found in aminoglycoside–RNA recognition, glucose-nucleobase pairs have been examined. Deoxyoligonucleotides with a 6-deoxyglucose insertion are able to hybridize with their complementary strand, thu...
| Autores: | , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/135179 |
| Acceso en línea: | https://hdl.handle.net/11441/135179 https://doi.org/10.1002/anie.201603510 |
| Access Level: | acceso abierto |
| Palabra clave: | DNA Hydrogen bonds NMR spectroscopy Noncovalent interactions Nucleobases |
| Sumario: | Noncovalent forces rule the interactions between biomolecules. Inspired by a biomolecular interaction found in aminoglycoside–RNA recognition, glucose-nucleobase pairs have been examined. Deoxyoligonucleotides with a 6-deoxyglucose insertion are able to hybridize with their complementary strand, thus exhibiting a preference for purine nucleobases. Although the resulting double helices are less stable than natural ones, they present only minor local distortions. 6-Deoxyglucose stays fully integrated in the double helix and its OH groups form two hydrogen bonds with the opposing guanine. This 6-deoxyglucose-guanine pair closely resembles a purine-pyrimidine geometry. Quantum chemical calculations indicate that glucose-purine pairs are as stable as a natural T-A pair. |
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