2lsz

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[[Image:2lsz.jpg|left|200px]]
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==NMR structure of duplex DNA containing the alpha-OH-PdG dA base pair: A mutagenic intermediate of acrolein==
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<StructureSection load='2lsz' size='340' side='right' caption='[[2lsz]], [[NMR_Ensembles_of_Models | 26 NMR models]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2lsz]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LSZ OCA]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=63H:(6R)-3-(2-DEOXY-5-O-PHOSPHONO-BETA-D-ERYTHRO-PENTOFURANOSYL)-6-HYDROXY-5,6,7,8-TETRAHYDROPYRIMIDO[1,2-A]PURIN-10(3H)-ONE'>63H</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2lt0|2lt0]]</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span></td></tr>
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<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=2lsz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2lsz OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2lsz RCSB], [http://www.ebi.ac.uk/pdbsum/2lsz PDBsum]</span></td></tr>
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<table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Acrolein, a cell metabolic product and main component of cigarette smoke, reacts with DNA generating alpha-OH-PdG lesions, which have the ability to pair with dATP during replication thereby causing G to T transversions. We describe the solution structure of an 11-mer DNA duplex containing the mutagenic alpha-OH-PdG.dA base pair intermediate, as determined by solution nuclear magnetic resonance (NMR) spectroscopy and retrained molecular dynamics (MD) simulations. The NMR data support a mostly regular right-handed helix that is only perturbed at its center by the presence of the lesion. Undamaged residues of the duplex are in anti orientation, forming standard Watson-Crick base pairs alignments. Duplication of proton signals at and near the damaged base pair reveals the presence of two enantiomeric duplexes, thus establishing the exocyclic nature of the lesion. The alpha-OH-PdG adduct assumes a syn conformation pairing to its partner dA base that is protonated at pH 6.6. The three-dimensional structure obtained by restrained molecular dynamics simulations show hydrogen bond interactions that stabilize alpha-OH-PdG in a syn conformation and across the lesion containing base pair. We discuss the implications of the structures for the mutagenic bypass of acrolein lesions.
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NMR structure of duplex DNA containing the alpha-OH-PdG.dA base pair: a mutagenic intermediate of acrolein.,Zaliznyak T, Lukin M, El-khateeb M, Bonala R, Johnson F, de los Santos C Biopolymers. 2010 Apr;93(4):391-401. PMID:20049919<ref>PMID:20049919</ref>
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The line below this paragraph, containing "STRUCTURE_2lsz", creates the "Structure Box" on the page.
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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or leave the SCENE parameter empty for the default display.
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{{STRUCTURE_2lsz| PDB=2lsz | SCENE= }}
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===NMR structure of duplex DNA containing the alpha-OH-PdG dA base pair: A mutagenic intermediate of acrolein===
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_20049919}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 20049919 is the PubMed ID number.
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</StructureSection>
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{{ABSTRACT_PUBMED_20049919}}
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==About this Structure==
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[[2lsz]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LSZ OCA].
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==Reference==
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<ref group="xtra">PMID:020049919</ref><references group="xtra"/>
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[[Category: Bonala, R.]]
[[Category: Bonala, R.]]
[[Category: El-khateeb, M.]]
[[Category: El-khateeb, M.]]

Revision as of 08:32, 7 May 2014

NMR structure of duplex DNA containing the alpha-OH-PdG dA base pair: A mutagenic intermediate of acrolein

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