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177d

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(New page: 200px<br /><applet load="177d" size="450" color="white" frame="true" align="right" spinBox="true" caption="177d" /> '''SOLUTION STRUCTURE AND HYDRATION PATTERNS OF...)
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[[Image:177d.jpg|left|200px]]<br /><applet load="177d" size="450" color="white" frame="true" align="right" spinBox="true"
 
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'''SOLUTION STRUCTURE AND HYDRATION PATTERNS OF A PYRIMIDINE(DOT)PURINE(DOT)PYRIMIDINE DNA TRIPLEX CONTAINING A NOVEL T(DOT)CG TRIPLE'''<br />
 
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==Overview==
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==SOLUTION STRUCTURE AND HYDRATION PATTERNS OF A PYRIMIDINE(DOT)PURINE(DOT)PYRIMIDINE DNA TRIPLEX CONTAINING A NOVEL T(DOT)CG TRIPLE==
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The solution structure of a pyrimidine.purine.pyrimidine DNA triplex, containing a novel T.CG base-triple has been determined via two and, three-dimensional NMR spectroscopy and restrained molecular dynamics, simulations incorporating explicit solvent and counter-ions. The T.CG, triple, which expands the triplex code, is stabilized by a single hydrogen, bond between the O-2 atom of thymine and the free amino proton of cytosine, in the Watson-Crick C.G base-pair. This hydrogen bonding alignment, produces large variations in helical twist at the dinucleotide steps, involving the thymine residue. Localized structural perturbations in the, purine-rich strand of the molecule are observed around the cytosine, residue in the T.CG triple. Globally, the triplex resembles the solution, structure of a previously solved pyrimidine.purine.pyrimidine DNA triplex, containing an unusual G.TA triple. Also conserved are the sites and, patterns of hydration in the two triplexes.
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<StructureSection load='177d' size='340' side='right'caption='[[177d]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[177d]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=177D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=177D FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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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=177d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=177d OCA], [https://pdbe.org/177d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=177d RCSB], [https://www.ebi.ac.uk/pdbsum/177d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=177d ProSAT]</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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The solution structure of a pyrimidine.purine.pyrimidine DNA triplex containing a novel T.CG base-triple has been determined via two and three-dimensional NMR spectroscopy and restrained molecular dynamics simulations incorporating explicit solvent and counter-ions. The T.CG triple, which expands the triplex code, is stabilized by a single hydrogen bond between the O-2 atom of thymine and the free amino proton of cytosine in the Watson-Crick C.G base-pair. This hydrogen bonding alignment produces large variations in helical twist at the dinucleotide steps involving the thymine residue. Localized structural perturbations in the purine-rich strand of the molecule are observed around the cytosine residue in the T.CG triple. Globally, the triplex resembles the solution structure of a previously solved pyrimidine.purine.pyrimidine DNA triplex containing an unusual G.TA triple. Also conserved are the sites and patterns of hydration in the two triplexes.
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==About this Structure==
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Solution structure and hydration patterns of a pyrimidine.purine.pyrimidine DNA triplex containing a novel T.CG base-triple.,Radhakrishnan I, Patel DJ J Mol Biol. 1994 Aug 26;241(4):600-19. PMID:8057381<ref>PMID:8057381</ref>
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177D is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=177D OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Solution structure and hydration patterns of a pyrimidine.purine.pyrimidine DNA triplex containing a novel T.CG base-triple., Radhakrishnan I, Patel DJ, J Mol Biol. 1994 Aug 26;241(4):600-19. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8057381 8057381]
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</div>
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[[Category: Protein complex]]
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<div class="pdbe-citations 177d" style="background-color:#fffaf0;"></div>
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[[Category: Patel, D.J.]]
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== References ==
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[[Category: Radhakrishnan, I.]]
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<references/>
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[[Category: dna]]
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__TOC__
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[[Category: nmr]]
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</StructureSection>
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[[Category: triplex]]
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[[Category: Large Structures]]
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[[Category: Patel DJ]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sat Nov 24 22:06:09 2007''
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[[Category: Radhakrishnan I]]

Current revision

SOLUTION STRUCTURE AND HYDRATION PATTERNS OF A PYRIMIDINE(DOT)PURINE(DOT)PYRIMIDINE DNA TRIPLEX CONTAINING A NOVEL T(DOT)CG TRIPLE

PDB ID 177d

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