1d90

<StructureSection load='1d90' size='340' side='right' caption='[[1d90]], [[Resolution|resolution]] 1.70&Aring;' scene=''>

<table><tr><td colspan='2'>[[1d90]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D90 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1D90 FirstGlance]. <br>

</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=DI:2-DEOXYINOSINE-5-MONOPHOSPHATE'>DI</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=1d90 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d90 OCA], [http://pdbe.org/1d90 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1d90 RCSB], [http://www.ebi.ac.uk/pdbsum/1d90 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1d90 ProSAT]</span></td></tr>

<div style="background-color:#fffaf0;">

== Publication Abstract from PubMed ==

The structure of the synthetic deoxyoctamer d(GGIGCTCC) has been determined by single crystal X-ray diffraction techniques to a resolution of 1.7A. The sequence crystallises in space group P6(1), with unit cell dimensions a = b = 45.07, c = 45.49A. The refinement converged with a crystallographic residual R = 0.14 and the location of 81 solvent molecules. The octamer forms an A-DNA duplex with 6 Watson-Crick (G.C) base pairs and 2 inosine-thymine (I.T) pairs. Refinement of the structure shows it to be essentially isomorphous with that reported for d(GGGGCTCC) with the mispairs adopting a "wobble" conformation. Conformational parameters and base stacking interactions are compared to those for the native duplex d(GGGGCCCC) and other similar sequences. A rationale for the apparent increased crystal packing efficiency and lattice stability of the I.T octamer is given.

Refined crystal structure of an octanucleotide duplex with I.T. mismatched base pairs.,Cruse WB, Aymani J, Kennard O, Brown T, Jack AG, Leonard GA Nucleic Acids Res. 1989 Jan 11;17(1):55-72. PMID:2911488<ref>PMID:2911488</ref>

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

</div>

<div class="pdbe-citations 1d90" style="background-color:#fffaf0;"></div>

== References ==

<references/>

[[Category: Aymani, J]]

[[Category: Brown, T]]

[[Category: Cruse, W B.T]]

[[Category: Jack, A G.C]]

[[Category: Kennard, O]]

[[Category: Leonard, G A]]

[[Category: Modified]]