2g1z

<StructureSection load='2g1z' size='340' side='right' caption='[[2g1z]], [[Resolution|resolution]] 3.11&Aring;' scene=''>

<table><tr><td colspan='2'>[[2g1z]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2G1Z OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2G1Z FirstGlance]. <br>

</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=2g1z FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2g1z OCA], [http://pdbe.org/2g1z PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2g1z RCSB], [http://www.ebi.ac.uk/pdbsum/2g1z PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2g1z ProSAT]</span></td></tr>

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== Publication Abstract from PubMed ==

We describe the packing features of the oligonucleotide duplex d(AAATTT)2, as determined by X-ray diffraction. There is little information on sequences that only contain A and T bases. The present structure confirms that these sequences tend to pack as a helical arrangement of stacked oligonucleotides in a B conformation with Watson-Crick hydrogen bonding. Our results demonstrate that the virtual TA base step between stacked duplexes has a negative twist that improves base stacking. This observation is consistent with the low stability of TA base steps in B-form DNA.

Packing features of the all-AT oligonucleotide d(AAATTT).,Valls N, Santaolalla A, Campos JL, Subirana JA J Biomol Struct Dyn. 2007 Jun;24(6):547-52. PMID:17508776<ref>PMID:17508776</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 2g1z" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Campos, J L]]

[[Category: Santaolalla, A]]

[[Category: Subirana, J A]]

[[Category: Valls, N]]

[[Category: Adenine]]

[[Category: Thymine]]