148d

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[[Image:148d.jpg|left|200px]]<br /><applet load="148d" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:148d.jpg|left|200px]]
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caption="148d" />
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'''THREE-DIMENSIONAL SOLUTION STRUCTURE OF THE THROMBIN BINDING DNA APTAMER D(GGTTGGTGTGGTTGG)'''<br />
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{{Structure
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|PDB= 148d |SIZE=350|CAPTION= <scene name='initialview01'>148d</scene>
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|SITE=
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|LIGAND=
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|ACTIVITY=
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}}
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'''THREE-DIMENSIONAL SOLUTION STRUCTURE OF THE THROMBIN BINDING DNA APTAMER D(GGTTGGTGTGGTTGG)'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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148D 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://oca.weizmann.ac.il/oca-bin/ocashort?id=148D OCA].
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148D is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=148D OCA].
==Reference==
==Reference==
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Three-dimensional solution structure of the thrombin-binding DNA aptamer d(GGTTGGTGTGGTTGG)., Schultze P, Macaya RF, Feigon J, J Mol Biol. 1994 Feb 4;235(5):1532-47. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8107090 8107090]
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Three-dimensional solution structure of the thrombin-binding DNA aptamer d(GGTTGGTGTGGTTGG)., Schultze P, Macaya RF, Feigon J, J Mol Biol. 1994 Feb 4;235(5):1532-47. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8107090 8107090]
[[Category: Protein complex]]
[[Category: Protein complex]]
[[Category: Feigon, J.]]
[[Category: Feigon, J.]]
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[[Category: nmr]]
[[Category: nmr]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 11:38:17 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 09:49:37 2008''

Revision as of 07:49, 20 March 2008

Image:148d.jpg


PDB ID 148d

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Coordinates: save as pdb, mmCIF, xml



THREE-DIMENSIONAL SOLUTION STRUCTURE OF THE THROMBIN BINDING DNA APTAMER D(GGTTGGTGTGGTTGG)


Overview

The DNA oligonucleotide d(GGTTGGTGTGGTTGG) (thrombin aptamer) binds to thrombin and inhibits its enzymatic activity in the chain of reactions that lead to blood clotting. Two-dimensional 1H NMR studies indicate that the oligonucleotide forms a folded structure in solution, composed of two guanine quartets connected by two T-T loops spanning the narrow grooves at one end and a T-G-T loop spanning a wide groove at the other end. We present the assignment strategy used, methods for the structure determination, and the refined three-dimensional structure of the thrombin aptamer. The initial structures were generated by metric matrix distance geometry using distance and dihedral bond angle constraints from NOE and coupling constants, respectively, and refined by restrained molecular dynamics and direct NOE refinement. Knowledge of the three-dimensional structure of this thrombin aptamer may be relevant for the design of improved thrombin-inhibiting anti-coagulants with similar structural motifs.

About this Structure

148D is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.

Reference

Three-dimensional solution structure of the thrombin-binding DNA aptamer d(GGTTGGTGTGGTTGG)., Schultze P, Macaya RF, Feigon J, J Mol Biol. 1994 Feb 4;235(5):1532-47. PMID:8107090

Page seeded by OCA on Thu Mar 20 09:49:37 2008

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