3eil
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Structure of B-DNA d(CGTTAATTAACG)2 in the presence of Manganese== | |
| + | <StructureSection load='3eil' size='340' side='right'caption='[[3eil]], [[Resolution|resolution]] 2.60Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3eil]] is a 6 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EIL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3EIL 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]] 2.6Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</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=3eil FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3eil OCA], [https://pdbe.org/3eil PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3eil RCSB], [https://www.ebi.ac.uk/pdbsum/3eil PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3eil ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | We present the structure of the duplex formed by a fragment of auto-complementary DNA with the sequence d(CGTTAATTAACG). The structure was determined by X-ray crystallography. Up to date it is the first structure presenting the interaction between a DNA oligonucleotide and manganese ions. The presence of Mn2+ creates bonds among the N7 atom of guanines and phosphates. These bonds stabilize and determine the crystallographic network in a P3(2) space group, unusual in oligonucleotide crystals. The crystal structure observed is compared with those found in the presence of Mg2+, Ca2+ and Ni2+, which show different kinds of interactions. The double helices show end-to-end interactions, in a manner that the terminal guanines interact with the minor groove of the neighboring duplex, while the terminal cytosines are disordered. We have chosen this sequence since it contains a TTAA repeat. Such repeats are very rare in all genomes. We suggest that this sequence may be very susceptible to the formation of closely spaced thymine dimers. | ||
| - | + | The interaction of manganese ions with DNA.,Millonig H, Pous J, Gouyette C, Subirana JA, Campos JL J Inorg Biochem. 2009 Jun;103(6):876-80. Epub 2009 Mar 25. PMID:19375803<ref>PMID:19375803</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 3eil" style="background-color:#fffaf0;"></div> | |
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Campos LJ]] | ||
| + | [[Category: Millonig H]] | ||
| + | [[Category: Pous J]] | ||
| + | [[Category: Subirana JA]] | ||
Current revision
Structure of B-DNA d(CGTTAATTAACG)2 in the presence of Manganese
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