1tan

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{{STRUCTURE_1tan| PDB=1tan | SCENE= }}
{{STRUCTURE_1tan| PDB=1tan | SCENE= }}
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'''TANDEM DNA, NMR, MINIMIZED AVERAGE STRUCTURE'''
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===TANDEM DNA, NMR, MINIMIZED AVERAGE STRUCTURE===
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==Overview==
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The solution structure of an estrone (Es)-tethered tandem DNA duplex consisting of two Es-tethered tetranucleotides and a target octameric DNA sequence is reported. The structure of this Es-tethered tandem duplex has been compared with a corresponding natural tandem duplex without estrones. The Tm of the 3'-Es-tethered tetranucleotide part of the tandem duplex increases by 5 degrees C, whereas the Tm of the 5'-Es-tethered tetranucleotide part increases by 7 degrees C, compared with the corresponding natural counterpart. The NMR structures of both the Es-tethered tandem duplex and the natural counterpart have been based on 24 experimental NMR constraints per residue. Despite the fact that there is considerable distortion at the junction of two Es-tethered tetranucleotides in the major groove of the Es-tethered DNA duplex compared to the natural counterpart, both duplexes do take up B-type DNA structures. It is likely that the spatial proximity of two Es residues, and the resulting hydrophobic interaction between them might be responsible for the increase of the thermal stability of the Es-tethered tandem duplex in comparison with the natural counterpart.
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(as it appears on PubMed at http://www.pubmed.gov), where 9439997 is the PubMed ID number.
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{{ABSTRACT_PUBMED_9439997}}
==About this Structure==
==About this Structure==
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TAN OCA].
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Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TAN OCA].
==Reference==
==Reference==
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[[Category: Nmr]]
[[Category: Nmr]]
[[Category: Tandem]]
[[Category: Tandem]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:44:35 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 14:49:22 2008''

Revision as of 11:49, 27 July 2008

Image:1tan.png

Template:STRUCTURE 1tan

TANDEM DNA, NMR, MINIMIZED AVERAGE STRUCTURE

Template:ABSTRACT PUBMED 9439997

About this Structure

Full experimental information is available from OCA.

Reference

The NMR structure of estrone (Es)-tethered tandem DNA duplex: [d(5'pCAGCp3')-Es] + [Es-d(5'pTCCA3')]: d(5'pTGGAGCTG3')., Denisov AY, Sandstrom A, Maltseva TV, Pyshnyi DV, Ivanova EM, Zarytova VF, Chattopadhyaya J, J Biomol Struct Dyn. 1997 Dec;15(3):499-516. PMID:9439997

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