1ibm
From Proteopedia
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|PDB= 1ibm |SIZE=350|CAPTION= <scene name='initialview01'>1ibm</scene>, resolution 3.31Å | |PDB= 1ibm |SIZE=350|CAPTION= <scene name='initialview01'>1ibm</scene>, resolution 3.31Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> | + | |LIGAND= <scene name='pdbligand=A:ADENOSINE-5'-MONOPHOSPHATE'>A</scene>, <scene name='pdbligand=C:CYTIDINE-5'-MONOPHOSPHATE'>C</scene>, <scene name='pdbligand=G:GUANOSINE-5'-MONOPHOSPHATE'>G</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=U:URIDINE-5'-MONOPHOSPHATE'>U</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1fjf|1FJF]], [[1fjg|1FJG]], [[1ibl|1IBL]], [[1ibk|1IBK]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ibm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ibm OCA], [http://www.ebi.ac.uk/pdbsum/1ibm PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ibm RCSB]</span> | ||
}} | }} | ||
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[[Category: Ramakrishnan, V.]] | [[Category: Ramakrishnan, V.]] | ||
[[Category: Tarry, M J.]] | [[Category: Tarry, M J.]] | ||
| - | [[Category: MG]] | ||
| - | [[Category: ZN]] | ||
[[Category: 30s ribosomal subunit]] | [[Category: 30s ribosomal subunit]] | ||
[[Category: a site]] | [[Category: a site]] | ||
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[[Category: transfer trna]] | [[Category: transfer trna]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:17:29 2008'' |
Revision as of 18:17, 30 March 2008
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| , resolution 3.31Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , , , , | ||||||
| Related: | 1FJF, 1FJG, 1IBL, 1IBK
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
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
Overview
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.
About this Structure
1IBM 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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