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2i2u

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[[Image:2i2u.gif|left|200px]]
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#REDIRECT [[4v50]] This PDB entry is obsolete and replaced by 4v50
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{{Structure
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|PDB= 2i2u |SIZE=350|CAPTION= <scene name='initialview01'>2i2u</scene>, resolution 3.220&Aring;
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|SITE=
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|LIGAND= <scene name='pdbligand=A:ADENOSINE-5&#39;-MONOPHOSPHATE'>A</scene>, <scene name='pdbligand=C:CYTIDINE-5&#39;-MONOPHOSPHATE'>C</scene>, <scene name='pdbligand=G:GUANOSINE-5&#39;-MONOPHOSPHATE'>G</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=U:URIDINE-5&#39;-MONOPHOSPHATE'>U</scene>
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|ACTIVITY=
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|GENE=
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|DOMAIN=
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|RELATEDENTRY=[[2i2p|2I2P]], [[2i2t|2I2T]], [[2i2v|2I2V]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2i2u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2i2u OCA], [http://www.ebi.ac.uk/pdbsum/2i2u PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2i2u RCSB]</span>
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}}
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'''Crystal Structure of Ribosome with messenger RNA and the Anticodon stem-loop of P-site tRNA. This file contains the 30s subunit of one 70s ribosome. The entire crystal structure contains two 70s ribosomes and is described in remark 400.'''
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==Overview==
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Protein synthesis requires the accurate positioning of mRNA and tRNA in the peptidyl-tRNA site of the ribosome. Here we describe x-ray crystal structures of the intact bacterial ribosome from Escherichia coli in a complex with mRNA and the anticodon stem-loop of P-site tRNA. At 3.5-A resolution, these structures reveal rearrangements in the intact ribosome that clamp P-site tRNA and mRNA on the small ribosomal subunit. Binding of the anticodon stem-loop of P-site tRNA to the ribosome is sufficient to lock the head of the small ribosomal subunit in a single conformation, thereby preventing movement of mRNA and tRNA before mRNA decoding.
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==About this Structure==
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2I2U is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I2U OCA].
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==Reference==
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Structural basis for mRNA and tRNA positioning on the ribosome., Berk V, Zhang W, Pai RD, Cate JH, Proc Natl Acad Sci U S A. 2006 Oct 24;103(43):15830-4. Epub 2006 Oct 12. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17038497 17038497]
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[[Category: Escherichia coli]]
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[[Category: Protein complex]]
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[[Category: Berk, V.]]
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[[Category: Cate, J H.D.]]
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[[Category: Pai, R D.]]
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[[Category: Zhang, W.]]
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[[Category: protein-nucleic acid complex]]
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[[Category: ribosome]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:38:53 2008''
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Current revision

  1. REDIRECT 4v50 This PDB entry is obsolete and replaced by 4v50

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