2hyi
From Proteopedia
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'''Structure of the human exon junction complex with a trapped DEAD-box helicase bound to RNA''' | '''Structure of the human exon junction complex with a trapped DEAD-box helicase bound to RNA''' | ||
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[[Category: Andersen, G R.]] | [[Category: Andersen, G R.]] | ||
[[Category: Hir, H Le.]] | [[Category: Hir, H Le.]] | ||
| - | [[Category: | + | [[Category: Dead-box atpase]] |
| - | [[Category: | + | [[Category: Exon junction]] |
| - | [[Category: | + | [[Category: Mrna processing]] |
| - | [[Category: | + | [[Category: Nonsense mediated decay]] |
| - | [[Category: | + | [[Category: Splicing]] |
| - | [[Category: | + | [[Category: Translation]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 06:52:02 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 03:52, 4 May 2008
Structure of the human exon junction complex with a trapped DEAD-box helicase bound to RNA
Overview
In higher eukaryotes, a multiprotein exon junction complex is deposited on spliced messenger RNAs. The complex is organized around a stable core, which serves as a binding platform for numerous factors that influence messenger RNA function. Here, we present the crystal structure of a tetrameric exon junction core complex containing the DEAD-box adenosine triphosphatase (ATPase) eukaryotic initiation factor 4AIII (eIF4AIII) bound to an ATP analog, MAGOH, Y14, a fragment of MLN51, and a polyuracil mRNA mimic. eIF4AIII interacts with the phosphate-ribose backbone of six consecutive nucleotides and prevents part of the bound RNA from being double stranded. The MAGOH and Y14 subunits lock eIF4AIII in a prehydrolysis state, and activation of the ATPase probably requires only modest conformational changes in eIF4AIII motif I.
About this Structure
2HYI is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure of the exon junction core complex with a trapped DEAD-box ATPase bound to RNA., Andersen CB, Ballut L, Johansen JS, Chamieh H, Nielsen KH, Oliveira CL, Pedersen JS, Seraphin B, Le Hir H, Andersen GR, Science. 2006 Sep 29;313(5795):1968-72. Epub 2006 Aug 24. PMID:16931718 Page seeded by OCA on Sun May 4 06:52:02 2008
