2kbd: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| (10 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
==5'-D(*CP*TP*GP*GP*GP*GP*AP*CP*TP*TP*TP*CP*CP*AP*GP*G)-3', 5'-D(*CP*CP*TP*GP*GP*AP*AP*AP*GP*TP*CP*CP*CP*CP*AP*G)-3'== | |||
<StructureSection load='2kbd' size='340' side='right'caption='[[2kbd]]' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2kbd]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KBD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2KBD FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2kbd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2kbd OCA], [https://pdbe.org/2kbd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2kbd RCSB], [https://www.ebi.ac.uk/pdbsum/2kbd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2kbd ProSAT]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
== | |||
1H and 31P NMR spectroscopy have been used together with molecular modelling to determine the fine structure of a non-palindromic 16 bp DNA containing the NF-kappa B binding site. Much emphasis has been placed upon NMR optimization of both two-dimensional 31P NMR techniques to extract structural information defining the phosphodiester backbone conformation and selective homonuclear 2D COSY experiments to determine sugar conformations. NMR data show evidence for a dynamic behaviour of steps flanking the ten base-pairs of the NF-kappa B binding site. A BI-BII equilibrium at these steps is demonstrated and two models for each extreme conformation are proposed in agreement with NMR data. In the refined BII structures, the NF-kappa B binding site exhibits an intrinsic curvature towards the major groove that is magnified by the four flanking steps in the BII conformation. Furthermore, the base-pairs are translated into the major groove. Thus, we present a novel mode of dynamic intrinsic curvature compatible with the DNA curvature observed in the X-ray structure of the p50-DNA complex. | 1H and 31P NMR spectroscopy have been used together with molecular modelling to determine the fine structure of a non-palindromic 16 bp DNA containing the NF-kappa B binding site. Much emphasis has been placed upon NMR optimization of both two-dimensional 31P NMR techniques to extract structural information defining the phosphodiester backbone conformation and selective homonuclear 2D COSY experiments to determine sugar conformations. NMR data show evidence for a dynamic behaviour of steps flanking the ten base-pairs of the NF-kappa B binding site. A BI-BII equilibrium at these steps is demonstrated and two models for each extreme conformation are proposed in agreement with NMR data. In the refined BII structures, the NF-kappa B binding site exhibits an intrinsic curvature towards the major groove that is magnified by the four flanking steps in the BII conformation. Furthermore, the base-pairs are translated into the major groove. Thus, we present a novel mode of dynamic intrinsic curvature compatible with the DNA curvature observed in the X-ray structure of the p50-DNA complex. | ||
Solution structure of a non-palindromic 16 base-pair DNA related to the HIV-1 kappa B site: evidence for BI-BII equilibrium inducing a global dynamic curvature of the duplex.,Tisne C, Hantz E, Hartmann B, Delepierre M J Mol Biol. 1998 May 29;279(1):127-42. PMID:9636705<ref>PMID:9636705</ref> | |||
Solution structure of a non-palindromic 16 base-pair DNA related to the HIV-1 kappa B site: evidence for BI-BII equilibrium inducing a global dynamic curvature of the duplex., Tisne C, Hantz E, Hartmann B, Delepierre M | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2kbd" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Delepierre M]] | |||
[[Category: Hantz E]] | |||
[[Category: Hartmann B]] | |||
[[Category: Tisne C]] | |||
Latest revision as of 12:50, 20 December 2023
5'-D(*CP*TP*GP*GP*GP*GP*AP*CP*TP*TP*TP*CP*CP*AP*GP*G)-3', 5'-D(*CP*CP*TP*GP*GP*AP*AP*AP*GP*TP*CP*CP*CP*CP*AP*G)-3'
| ||||||||||||
