115d: Difference between revisions

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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=115d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=115d OCA], [https://pdbe.org/115d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=115d RCSB], [https://www.ebi.ac.uk/pdbsum/115d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=115d ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=115d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=115d OCA], [https://pdbe.org/115d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=115d RCSB], [https://www.ebi.ac.uk/pdbsum/115d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=115d ProSAT]</span></td></tr>
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== Publication Abstract from PubMed ==
The crystal structure of the deoxyoctamer d(G-G-Br U-A-BrU-A-C-C) was refined to a resolution of 1.7 A using combined diffractometer and synchrotron data. The analysis was carried out independently in two laboratories using different procedures. Although the final results are identical the comparison of the two approaches highlights potential problems in the refinement of oligonucleotides when only limited data are available. As part of the analysis the positions of 84 solvent molecules in the asymmetric unit were established. The DNA molecule is highly solvated, particularly the phosphate-sugar back-bone and the functional groups of the bases. The major groove contains, in the central BrU-A-BrU-A region, a ribbon of water molecules forming closed pentagons with shared edges. These water molecules are linked to the base O and N atoms and to the solvent chains connecting the O-1 phosphate oxygen atoms on each strand. The minor groove is also extensively hydrated with a continuous network in the central region and other networks at each end. The pattern of hydration is briefly compared with that observed in the structure of a B-dodecamer.
Ordered water structure in an A-DNA octamer at 1.7 A resolution.,Kennard O, Cruse WB, Nachman J, Prange T, Shakked Z, Rabinovich D J Biomol Struct Dyn. 1986 Feb;3(4):623-47. PMID:3271041<ref>PMID:3271041</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 115d" style="background-color:#fffaf0;"></div>
== References ==
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Latest revision as of 09:24, 7 February 2024

ORDERED WATER STRUCTURE IN AN A-DNA OCTAMER AT 1.7 ANGSTROMS RESOLUTIONORDERED WATER STRUCTURE IN AN A-DNA OCTAMER AT 1.7 ANGSTROMS RESOLUTION

Structural highlights

115d is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.7Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

115d, resolution 1.70Å

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OCA
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