2lyg | pdb_00002lyg
From Proteopedia
Fuc_TBA
| ||||||||||||
Structural highlights
Publication Abstract from PubMedQuadruplex DNA structures are attracting an enormous interest in many areas of chemistry, ranging from chemical biology, supramolecular chemistry to nanoscience. We have prepared carbohydrate-DNA conjugates containing the oligonucleotide sequences of G-quadruplexes (thrombin binding aptamer (TBA) and human telomere (TEL)), measured their thermal stability and studied their structure in solution by using NMR and molecular dynamics. The solution structure of a fucose-TBA conjugate shows stacking interactions between the carbohydrate and the DNA G-tetrad in addition to hydrogen bonding and hydrophobic contacts. We have also shown that attaching carbohydrates at the 5'-end of a quadruplex telomeric sequence can alter its folding topology. These results suggest the possibility of modulating the folding of the G-quadruplex by linking carbohydrates and have clear implications in molecular recognition and the design of new G-quadruplex ligands. Carbohydrate-DNA interactions at G-quadruplexes: folding and stability changes by attaching sugars at the 5'-end.,Gomez-Pinto I, Vengut-Climent E, Lucas R, Avino A, Eritja R, Gonzalez C, Morales JC Chemistry. 2013 Feb 4;19(6):1920-7. doi: 10.1002/chem.201203902. Epub 2013 Jan, 11. PMID:23315826[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
| ||||||||||||||||||
This page was last modified 10:04, 10 September 2015.