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[[ | ==CRYSTAL STRUCTURE OF A DECAMERIC HNA-RNA HYBRID== | ||
<StructureSection load='2bj6' size='340' side='right' caption='[[2bj6]], [[Resolution|resolution]] 2.60Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2bj6]] is a 8 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BJ6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2BJ6 FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | |||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=6HA:1,5-ANHYDRO-2,3-DIDEOXY-2-(ADENIN-9-YL)-6-O-PHOSPHORYL-D-ARABINO-HEXITOL'>6HA</scene>, <scene name='pdbligand=6HC:1,5-ANHYDRO-2,3-DIDEOXY-2-(CYTOSIN-1-YL)-6-O-PHOSPHORYL-D-ARABINO-HEXITOL'>6HC</scene>, <scene name='pdbligand=6HG:1,5-ANHYDRO-2,3-DIDEOXY-2-(GUANIN-9-YL)-6-O-PHOSPHORYL-D-ARABINO-HEXITOL'>6HG</scene>, <scene name='pdbligand=6HT:1,5-ANHYDRO-2,3-DIDEOXY-2-(THYMIN-1-YL)-6-O-PHOSPHORYL-D-ARABINO-HEXITOL'>6HT</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2bj6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bj6 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2bj6 RCSB], [http://www.ebi.ac.uk/pdbsum/2bj6 PDBsum]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The crystal structure of a decameric HNA/RNA (HNA = 2',3'-dideoxy-1',5'-anhydro-d-arabinohexitol nucleic acid) hybrid with the RNA sequence 5'-GGCAUUACGG-3' is the first crystal structure of a hybrid duplex between a naturally occurring nucleic acid and a strand, which is fully modified to contain a six-membered ring instead of ribose. The presence of four duplex helices in the asymmetric unit allows for a detailed discussion of hydration, which revealed a tighter spinelike backbone hydration for the HNA- than for the RNA-strands. The reinforced backbone hydration is suggested to contribute significantly to the exceptional stability of HNA-containing duplexes and might be one of the causes for the evolutionary preference for ribose-derived nucleic acids. | |||
Reinforced HNA backbone hydration in the crystal structure of a decameric HNA/RNA hybrid.,Maier T, Przylas I, Strater N, Herdewijn P, Saenger W J Am Chem Soc. 2005 Mar 9;127(9):2937-43. PMID:15740130<ref>PMID:15740130</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | |||
< | |||
[[Category: Herdewijn, P.]] | [[Category: Herdewijn, P.]] | ||
[[Category: Maier, T.]] | [[Category: Maier, T.]] | ||
Revision as of 14:56, 29 October 2014
CRYSTAL STRUCTURE OF A DECAMERIC HNA-RNA HYBRIDCRYSTAL STRUCTURE OF A DECAMERIC HNA-RNA HYBRID
Structural highlights
Publication Abstract from PubMedThe crystal structure of a decameric HNA/RNA (HNA = 2',3'-dideoxy-1',5'-anhydro-d-arabinohexitol nucleic acid) hybrid with the RNA sequence 5'-GGCAUUACGG-3' is the first crystal structure of a hybrid duplex between a naturally occurring nucleic acid and a strand, which is fully modified to contain a six-membered ring instead of ribose. The presence of four duplex helices in the asymmetric unit allows for a detailed discussion of hydration, which revealed a tighter spinelike backbone hydration for the HNA- than for the RNA-strands. The reinforced backbone hydration is suggested to contribute significantly to the exceptional stability of HNA-containing duplexes and might be one of the causes for the evolutionary preference for ribose-derived nucleic acids. Reinforced HNA backbone hydration in the crystal structure of a decameric HNA/RNA hybrid.,Maier T, Przylas I, Strater N, Herdewijn P, Saenger W J Am Chem Soc. 2005 Mar 9;127(9):2937-43. PMID:15740130[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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