264d: Difference between revisions
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<StructureSection load='264d' size='340' side='right'caption='[[264d]], [[Resolution|resolution]] 2.44Å' scene=''> | <StructureSection load='264d' size='340' side='right'caption='[[264d]], [[Resolution|resolution]] 2.44Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[264d]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=264D OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[264d]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=264D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=264D FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HT:2-(4-HYDROXYPHENYL)-5-(4-METHYL-1-PIPERAZINYL)-2,5-BI-BENZIMIDAZOLE'>HT</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HT:2-(4-HYDROXYPHENYL)-5-(4-METHYL-1-PIPERAZINYL)-2,5-BI-BENZIMIDAZOLE'>HT</scene></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=264d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=264d OCA], [https://pdbe.org/264d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=264d RCSB], [https://www.ebi.ac.uk/pdbsum/264d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=264d ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
Revision as of 14:30, 30 March 2022
THREE-DIMENSIONAL CRYSTAL STRUCTURE OF THE A-TRACT DNA DODECAMER D(CGCAAATTTGCG) COMPLEXED WITH THE MINOR-GROOVE-BINDING DRUG HOECHST 33258THREE-DIMENSIONAL CRYSTAL STRUCTURE OF THE A-TRACT DNA DODECAMER D(CGCAAATTTGCG) COMPLEXED WITH THE MINOR-GROOVE-BINDING DRUG HOECHST 33258
Structural highlights
Publication Abstract from PubMedThe molecular structure of the DNA A-tract dodecamer d(CGCAAATTTGCG) complexed with the drug Hoechst 33258 has been determined by X-ray diffraction analysis. The Hoechst molecule binds in the DNA minor groove covering the sequence AATTT of the central A-tract, with the piperazine group close to one of the GC regions. The drug molecule makes two three-centered hydrogen bonds from the nitrogen atoms of the benzimidazole rings to the N3 and O2 atoms of the DNA bases. Although a high propeller twist is observed in the A-tract, only one unsymmetrical three-centered hydrogen bond is present in the DNA major groove. The structure is compared with other minor-groove-binding drug complexes and the influence of these drugs on DNA A-tracts is discussed. Three-dimensional crystal structure of the A-tract DNA dodecamer d(CGCAAATTTGCG) complexed with the minor-groove-binding drug Hoechst 33258.,Vega MC, Garcia Saez I, Aymami J, Eritja R, Van der Marel GA, Van Boom JH, Rich A, Coll M Eur J Biochem. 1994 Jun 15;222(3):721-6. PMID:7517864[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
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