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1l1h
From Proteopedia
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| - | {{Seed}} | ||
| - | [[Image:1l1h.png|left|200px]] | ||
| - | < | + | ==Crystal Structure of the Quadruplex DNA-Drug Complex== |
| - | + | <StructureSection load='1l1h' size='340' side='right'caption='[[1l1h]], [[Resolution|resolution]] 1.75Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[1l1h]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1L1H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1L1H 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]] 1.75Å</td></tr> | |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=PYN:3-PYRROLIDIN-1-YL-N-[6-(3-PYRROLIDIN-1-YL-PROPIONYLAMINO)-ACRIDIN-3-YL]-PROPIONAMIDE'>PYN</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=1l1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l1h OCA], [https://pdbe.org/1l1h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1l1h RCSB], [https://www.ebi.ac.uk/pdbsum/1l1h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1l1h ProSAT]</span></td></tr> | |
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Stabilisation of G-quadruplex structures formed from telomeric DNA, by means of quadruplex-selective ligands, is a means of inhibiting the telomerase enzyme from catalysing the synthesis of telomeric DNA repeats. In order to understand the molecular basis of ligand-quadruplex recognition, the crystal structure has been determined of such a complex, at 1.75A resolution. This complex is between a dimeric antiparallel G-quadruplex formed from the Oxytricha nova telomeric DNA sequence d(GGGGTTTTGGGG), and a di-substituted aminoalkylamido acridine compound. The structure shows that the acridine moiety is bound at one end of the stack of G-quartets, within one of the thymine loops. It is held in place by a combination of stacking interactions and specific hydrogen bonds with thymine bases. The stability of the ligand in this binding site has been confirmed by a 2ns molecular dynamics simulation. | ||
| - | + | Structure of a G-quadruplex-ligand complex.,Haider SM, Parkinson GN, Neidle S J Mol Biol. 2003 Feb 7;326(1):117-25. PMID:12547195<ref>PMID:12547195</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 1l1h" style="background-color:#fffaf0;"></div> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | + | __TOC__ | |
| - | + | </StructureSection> | |
| - | == | + | [[Category: Large Structures]] |
| - | + | [[Category: Haider SM]] | |
| - | + | [[Category: Neidle S]] | |
| - | == | + | [[Category: Parkinson GN]] |
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Current revision
Crystal Structure of the Quadruplex DNA-Drug Complex
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