1ibl

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[[Image:1ibl.gif|left|200px]]
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{{STRUCTURE_1ibl| PDB=1ibl | SCENE= }}
{{STRUCTURE_1ibl| PDB=1ibl | SCENE= }}
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'''STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH A MESSENGER RNA FRAGMENT AND COGNATE TRANSFER RNA ANTICODON STEM-LOOP BOUND AT THE A SITE AND WITH THE ANTIBIOTIC PAROMOMYCIN'''
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===STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH A MESSENGER RNA FRAGMENT AND COGNATE TRANSFER RNA ANTICODON STEM-LOOP BOUND AT THE A SITE AND WITH THE ANTIBIOTIC PAROMOMYCIN===
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==Overview==
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Crystal structures of the 30S ribosomal subunit in complex with messenger RNA and cognate transfer RNA in the A site, both in the presence and absence of the antibiotic paromomycin, have been solved at between 3.1 and 3.3 angstroms resolution. Cognate transfer RNA (tRNA) binding induces global domain movements of the 30S subunit and changes in the conformation of the universally conserved and essential bases A1492, A1493, and G530 of 16S RNA. These bases interact intimately with the minor groove of the first two base pairs between the codon and anticodon, thus sensing Watson-Crick base-pairing geometry and discriminating against near-cognate tRNA. The third, or "wobble," position of the codon is free to accommodate certain noncanonical base pairs. By partially inducing these structural changes, paromomycin facilitates binding of near-cognate tRNAs.
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(as it appears on PubMed at http://www.pubmed.gov), where 11340196 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11340196}}
==About this Structure==
==About this Structure==
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[[Category: Transfer rna]]
[[Category: Transfer rna]]
[[Category: Trna]]
[[Category: Trna]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 19:48:46 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 10:43:11 2008''

Revision as of 07:43, 1 July 2008

Image:1ibl.png

Template:STRUCTURE 1ibl

STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH A MESSENGER RNA FRAGMENT AND COGNATE TRANSFER RNA ANTICODON STEM-LOOP BOUND AT THE A SITE AND WITH THE ANTIBIOTIC PAROMOMYCIN

Template:ABSTRACT PUBMED 11340196

About this Structure

1IBL is a Protein complex structure of sequences from Thermus thermophilus. Full crystallographic information is available from OCA.

Reference

Recognition of cognate transfer RNA by the 30S ribosomal subunit., Ogle JM, Brodersen DE, Clemons WM Jr, Tarry MJ, Carter AP, Ramakrishnan V, Science. 2001 May 4;292(5518):897-902. PMID:11340196

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