459d: Difference between revisions
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New page: left|200px<br /><applet load="459d" size="350" color="white" frame="true" align="right" spinBox="true" caption="459d, resolution 2.3Å" /> '''DNA MINOR-GROOVE RECO... |
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== | ==DNA MINOR-GROOVE RECOGNITION OF A TRIS-BENZIMIDAZOLE DRUG== | ||
The crystal structure of the non-self-complementary dodecamer DNA duplex | <StructureSection load='459d' size='340' side='right'caption='[[459d]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[459d]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=459D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=459D FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CBR:5-BROMO-2-DEOXY-CYTIDINE-5-MONOPHOSPHATE'>CBR</scene>, <scene name='pdbligand=TBZ:2-(4-METHOXYPHENYL)-5-(3-AMINO-1-PYRROLIDINYL)-2,5,2,5-TRI-BENZIMIDAZOLE'>TBZ</scene></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=459d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=459d OCA], [https://pdbe.org/459d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=459d RCSB], [https://www.ebi.ac.uk/pdbsum/459d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=459d ProSAT]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The crystal structure of the non-self-complementary dodecamer DNA duplex formed by d(CG[5BrC]ATAT-TTGCG) and d(CGCAAATATGCG) has been solved to 2.3 A resolution, together with that of its complex with the tris-benzimidazole minor groove binding ligand TRIBIZ. The inclusion of a bromine atom on one strand in each structure enabled the possibility of disorder to be discounted. The native structure has an exceptional narrow minor groove, of 2.5-2.6 A in the central part of the A/T region, which is increased in width by approximately 0.8 A on drug binding. The ligand molecule binds in the central part of the sequence. The benzimidazole subunits of the ligand participate in six bifurcated hydrogen bonds with A:T base pair edges, three to each DNA strand. The presence of a pair of C-H...O hydrogen bonds has been deduced from the close proximity of the pyrrolidine group of the ligand to the TpA step in the sequence. | |||
DNA minor groove recognition of a non-self-complementary AT-rich sequence by a tris-benzimidazole ligand.,Aymami J, Nunn CM, Neidle S Nucleic Acids Res. 1999 Jul 1;27(13):2691-8. PMID:10373586<ref>PMID:10373586</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
[[Category: | <div class="pdbe-citations 459d" style="background-color:#fffaf0;"></div> | ||
[[Category: Aymami | == References == | ||
[[Category: Neidle | <references/> | ||
[[Category: Nunn | __TOC__ | ||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Aymami J]] | |||
[[Category: Neidle S]] | |||
[[Category: Nunn CM]] | |||
Latest revision as of 00:35, 28 December 2023
DNA MINOR-GROOVE RECOGNITION OF A TRIS-BENZIMIDAZOLE DRUG
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