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{{Seed}}
[[Image:1evm.png|left|200px]]


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==NMR OBSERVATION OF A-TETRAD==
The line below this paragraph, containing "STRUCTURE_1evm", creates the "Structure Box" on the page.
<StructureSection load='1evm' size='340' side='right'caption='[[1evm]]' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1evm]] is a 4 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EVM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EVM FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</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=1evm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1evm OCA], [https://pdbe.org/1evm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1evm RCSB], [https://www.ebi.ac.uk/pdbsum/1evm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1evm ProSAT]</span></td></tr>
{{STRUCTURE_1evm|  PDB=1evm  |  SCENE=  }}
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The structure of the telomeric DNA has been a subject of extensive investigation in recent years due to the realization that it has important functional roles to play in vivo and the observations that truncated telomeric sequences exhibit a great variety of 3D structures in aqueous solutions. In this context, we describe here NMR structural studies on two truncated human telomeric DNA sequences, d-AG(3)T and d-TAG(3)T in solutions containing K(+)ions. The G(3)stretches in both the oligonucleotides were seen to form parallel-stranded quadruplexes. However, the AG(3)segment as a whole, had different structural characteristics. The structure of d-AG(3)T revealed the formation of a novel A-tetrad, which was not seen in d-TAG(3)T. The A's in the tetrad had syn glycosidic conformation as opposed to the anti conformation of the G's in the G-tetrads. The A-tetrad stacked well over the adjacent G-tetrad and the twist angle at this step was smaller in d-AG(3)T than in d-TAG(3)T. These observations are expected to be significant from the point of view of structural diversity and recognition in telomeres.


===NMR OBSERVATION OF A-TETRAD===
NMR studies on truncated sequences of human telomeric DNA: observation of a novel A-tetrad.,Patel PK, Koti AS, Hosur RV Nucleic Acids Res. 1999 Oct 1;27(19):3836-43. PMID:10481022<ref>PMID:10481022</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
The line below this paragraph, {{ABSTRACT_PUBMED_10481022}}, adds the Publication Abstract to the page
<div class="pdbe-citations 1evm" style="background-color:#fffaf0;"></div>
(as it appears on PubMed at http://www.pubmed.gov), where 10481022 is the PubMed ID number.
== References ==
-->
<references/>
{{ABSTRACT_PUBMED_10481022}}
__TOC__
 
</StructureSection>
==About this Structure==
[[Category: Large Structures]]
Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EVM OCA].
[[Category: Hosur RV]]
 
[[Category: Koti ASR]]
==Reference==
[[Category: Patel PK]]
NMR studies on truncated sequences of human telomeric DNA: observation of a novel A-tetrad., Patel PK, Koti AS, Hosur RV, Nucleic Acids Res. 1999 Oct 1;27(19):3836-43. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10481022 10481022]
[[Category: Hosur, R V.]]
[[Category: Koti, A S.R.]]
[[Category: Patel, P K.]]
[[Category: A-tetrad]]
[[Category: G-quadruplex]]
[[Category: Human telomere]]
[[Category: Nmr structure]]
 
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Latest revision as of 11:48, 22 November 2023

NMR OBSERVATION OF A-TETRAD

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