1am0

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{{STRUCTURE_1am0| PDB=1am0 | SCENE= }}
{{STRUCTURE_1am0| PDB=1am0 | SCENE= }}
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'''AMP RNA APTAMER COMPLEX, NMR, 8 STRUCTURES'''
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===AMP RNA APTAMER COMPLEX, NMR, 8 STRUCTURES===
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==Overview==
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The catalytic properties of RNA and its well known role in gene expression and regulation are the consequence of its unique solution structures. Identification of the structural determinants of ligand recognition by RNA molecules is of fundamental importance for understanding the biological functions of RNA, as well as for the rational design of RNA Sequences with specific catalytic activities. Towards this latter end, Szostak et al. used in vitro selection techniques to isolate RNA sequences ('aptamers') containing a high-affinity binding site for ATP, the universal currency of cellular energy, and then used this motif to engineer ribozymes with polynucleotide kinase activity. Here we present the solution structure, as determined by multidimensional NMR spectroscopy and molecular dynamics calculations, of both uniformly and specifically 13C-, 15N-labelled 40-mer RNA containing the ATP-binding motif complexed with AMP. The aptamer adopts an L-shaped structure with two nearly orthogonal stems, each capped proximally by a G x G mismatch pair, binding the AMP ligand at their junction in a GNRA-like motif.
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{{ABSTRACT_PUBMED_8700212}}
==About this Structure==
==About this Structure==
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This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1ara 1ara]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AM0 OCA].
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This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1ara 1ara]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AM0 OCA].
==Reference==
==Reference==
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[[Category: Ribonucleic acid]]
[[Category: Ribonucleic acid]]
[[Category: Rna aptamer]]
[[Category: Rna aptamer]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 17:07:42 2008''

Revision as of 14:07, 30 June 2008

Image:1am0.png

Template:STRUCTURE 1am0

AMP RNA APTAMER COMPLEX, NMR, 8 STRUCTURES

Template:ABSTRACT PUBMED 8700212

About this Structure

This structure supersedes the now removed PDB entry 1ara. Full experimental information is available from OCA.

Reference

Structural basis of RNA folding and recognition in an AMP-RNA aptamer complex., Jiang F, Kumar RA, Jones RA, Patel DJ, Nature. 1996 Jul 11;382(6587):183-6. PMID:8700212

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