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'''Unreleased structure'''


The entry 6jce is ON HOLD
==NMR solution and X-ray crystal structures of a DNA containing both right-and left-handed parallel-stranded G-quadruplexes==
<StructureSection load='6jce' size='340' side='right'caption='[[6jce]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6jce]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6JCE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6JCE FirstGlance]. <br>
</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=6jce FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6jce OCA], [https://pdbe.org/6jce PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6jce RCSB], [https://www.ebi.ac.uk/pdbsum/6jce PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6jce ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Analogous to the B- and Z-DNA structures in double-helix DNA, there exist both right- and left-handed quadruple-helix (G-quadruplex) DNA. Numerous conformations of right-handed and a few left-handed G-quadruplexes were previously observed, yet they were always identified separately. Here, we present the NMR solution and X-ray crystal structures of a right- and left-handed hybrid G-quadruplex. The structure reveals a stacking interaction between two G-quadruplex blocks with different helical orientations and displays features of both right- and left-handed G-quadruplexes. An analysis of loop mutations suggests that single-nucleotide loops are preferred or even required for the left-handed G-quadruplex formation. The discovery of a right- and left-handed hybrid G-quadruplex further expands the polymorphism of G-quadruplexes and is potentially useful in designing a left-to-right junction in G-quadruplex engineering.


Authors: Winnerdy, F.R., Bakalar, B., Maity, A., Vandana, J.J., Mechulam, Y., Schmitt, E., Phan, A.T.
NMR solution and X-ray crystal structures of a DNA molecule containing both right- and left-handed parallel-stranded G-quadruplexes.,Winnerdy FR, Bakalar B, Maity A, Vandana JJ, Mechulam Y, Schmitt E, Phan AT Nucleic Acids Res. 2019 Jun 19. pii: 5520578. doi: 10.1093/nar/gkz349. PMID:31216034<ref>PMID:31216034</ref>


Description: NMR solution and X-ray crystal structures of a DNA containing both right-and left-handed parallel-stranded G-quadruplexes
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Schmitt, E]]
<div class="pdbe-citations 6jce" style="background-color:#fffaf0;"></div>
[[Category: Mechulam, Y]]
== References ==
[[Category: Vandana, J.J]]
<references/>
[[Category: Maity, A]]
__TOC__
[[Category: Phan, A.T]]
</StructureSection>
[[Category: Winnerdy, F.R]]
[[Category: Large Structures]]
[[Category: Bakalar, B]]
[[Category: Synthetic construct]]
[[Category: Bakalar B]]
[[Category: Maity A]]
[[Category: Mechulam Y]]
[[Category: Phan AT]]
[[Category: Schmitt E]]
[[Category: Vandana JJ]]
[[Category: Winnerdy FR]]
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