1ddp

<StructureSection load='1ddp' size='340' side='right' caption='[[1ddp]], [[NMR_Ensembles_of_Models | 10 NMR models]]' scene=''>

<table><tr><td colspan='2'>[[1ddp]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DDP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1DDP FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CPT:CISPLATIN'>CPT</scene></td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ddp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ddp OCA], [http://pdbe.org/1ddp PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ddp RCSB], [http://www.ebi.ac.uk/pdbsum/1ddp PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ddp ProSAT]</span></td></tr>

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== Publication Abstract from PubMed ==

The widely used antitumor drug cis-diamminedichloroplatinum(II) (cisplatin or cis-DDP) reacts with DNA, cross-linking two purine residues through the N7 atoms, which reside in the major groove in B-form DNA. The solution structure of the short duplex [d(CAT-AGCTATG)]2 cross-linked at the GC:GC site was determined by nuclear magnetic resonance (NMR). The deoxyguanosine-bridging cis-diammineplatinum(II) lies in the minor groove, and the complementary deoxycytidines are extrahelical. The double helix is locally reversed to a left-handed form, and the helix is unwound and bent toward the minor groove. These findings were independently confirmed by results from a phase-sensitive gel electrophoresis bending assay. The NMR structure differs markedly from previously proposed models but accounts for the chemical reactivity, the unwinding, and the bending of cis-DDP interstrand cross-linked DNA and may be important in the formation and repair of these cross-links in chromatin.

Solution structure of a cisplatin-induced DNA interstrand cross-link.,Huang H, Zhu L, Reid BR, Drobny GP, Hopkins PB Science. 1995 Dec 15;270(5243):1842-5. PMID:8525382<ref>PMID:8525382</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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<div class="pdbe-citations 1ddp" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Drobny, G P]]

[[Category: Hopkins, P B]]

[[Category: Huang, H]]

[[Category: Reid, B R]]

[[Category: Zhu, L]]

[[Category: Interstrand cross-link]]