|
|
| Line 8: |
Line 8: |
| <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2ke8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ke8 OCA], [https://pdbe.org/2ke8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ke8 RCSB], [https://www.ebi.ac.uk/pdbsum/2ke8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ke8 ProSAT]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2ke8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ke8 OCA], [https://pdbe.org/2ke8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ke8 RCSB], [https://www.ebi.ac.uk/pdbsum/2ke8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ke8 ProSAT]</span></td></tr> |
| </table> | | </table> |
| <div style="background-color:#fffaf0;">
| |
| == Publication Abstract from PubMed ==
| |
| Metal-mediated base pairs represent a powerful tool for the site-specific functionalization of nucleic acids with metal ions. The development of applications of the metal-modified nucleic acids will depend on the availability of structural information on these double helices. We present here the NMR solution structure of a self-complementary DNA oligonucleotide with three consecutive imidazole nucleotides in its centre. In the absence of transition-metal ions, a hairpin structure is adopted with the artificial nucleotides forming the loop. In the presence of Ag(i) ions, a duplex comprising three imidazole-Ag(+)-imidazole base pairs is formed. Direct proof for the formation of metal-mediated base pairs was obtained from (1)J((1)N,(1)/(1)Ag) couplings upon incorporation of (1)N-labelled imidazole. The duplex adopts a B-type conformation with only minor deviations in the region of the artificial bases. This work represents the first structural characterization of a metal-modified nucleic acid with a continuous stretch of metal-mediated base pairs.
| |
|
| |
| Solution structure of a DNA double helix with consecutive metal-mediated base pairs.,Johannsen S, Megger N, Bohme D, Sigel RK, Muller J Nat Chem. 2010 Mar;2(3):229-34. Epub 2010 Jan 17. PMID:21124482<ref>PMID:21124482</ref>
| |
|
| |
| From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| |
| </div>
| |
| <div class="pdbe-citations 2ke8" style="background-color:#fffaf0;"></div>
| |
| == References ==
| |
| <references/>
| |
| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |