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1da1
From Proteopedia
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| - | [[ | + | ==STRUCTURAL CHARACTERISATION OF THE BROMOURACIL-GUANINE BASE PAIR MISMATCH IN A Z-DNA FRAGMENT== |
| + | <StructureSection load='1da1' size='340' side='right' caption='[[1da1]], [[Resolution|resolution]] 2.25Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1da1]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DA1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1DA1 FirstGlance]. <br> | ||
| + | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene><br> | ||
| + | <tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=BRU:5-BROMO-2-DEOXYURIDINE-5-MONOPHOSPHATE'>BRU</scene></td></tr> | ||
| + | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1da1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1da1 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1da1 RCSB], [http://www.ebi.ac.uk/pdbsum/1da1 PDBsum]</span></td></tr> | ||
| + | <table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The deoxyoligonucleotide d(BrU-G-C-G-C-G) was crystallised at pH 8.2 and its structure analysed by X-ray diffraction. The unit cell, of dimensions a = 17.94, b = 30.85, c = 49.94A contains four DNA duplexes in space group P2(1)2(1)2(1). The duplexes are in the Z conformation, with four Watson-Crick G.C base pairs and two BrU.G base pairs. The structure was refined to an R factor of 0.16 at a resolution of 2.2A with 64 solvent molecules located. The BrU.G base pair mismatch is of the wobble type, with both bases in the major tautomer form and hydrogen bonds linking 0-2 of BrU with N-1 of G and N3 of BrU with 0-6 of G. There is no indication of the presence of ionised base pairs, in spite of the high pH of crystallisation. The results are discussed in terms of the mutagenic properties of 5- bromouracil. | ||
| - | + | Structural characterisation of the bromouracil.guanine base pair mismatch in a Z-DNA fragment.,Brown T, Kneale G, Hunter WN, Kennard O Nucleic Acids Res. 1986 Feb 25;14(4):1801-9. PMID:3951996<ref>PMID:3951996</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | == | + | __TOC__ |
| - | + | </StructureSection> | |
[[Category: Brown, T.]] | [[Category: Brown, T.]] | ||
[[Category: Hunter, W N.]] | [[Category: Hunter, W N.]] | ||
Revision as of 06:47, 4 September 2014
STRUCTURAL CHARACTERISATION OF THE BROMOURACIL-GUANINE BASE PAIR MISMATCH IN A Z-DNA FRAGMENT
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Categories: Brown, T. | Hunter, W N. | Kennard, O. | Kneale, G. | Dna | Double helix | Mismatched | Modified | Z-dna
