1p27: Difference between revisions

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[[Image:1p27.gif|left|200px]]
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[[Image:1p27.png|left|200px]]


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{{STRUCTURE_1p27|  PDB=1p27  |  SCENE=  }}  
{{STRUCTURE_1p27|  PDB=1p27  |  SCENE=  }}  


'''Crystal Structure of the Human Y14/Magoh complex'''
===Crystal Structure of the Human Y14/Magoh complex===




==Overview==
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BACKGROUND: Splicing of pre-mRNA in eukaryotes imprints the resulting mRNA with a specific multiprotein complex, the exon-exon junction complex (EJC), at the sites of intron removal. The proteins of the EJC, Y14, Magoh, Aly/REF, RNPS1, Srm160, and Upf3, play critical roles in postsplicing processing, including nuclear export and cytoplasmic localization of the mRNA, and the nonsense-mediated mRNA decay (NMD) surveillance process. Y14 and Magoh are of particular interest because they remain associated with the mRNA in the same position after its export to the cytoplasm and require translation of the mRNA for removal. This tenacious, persistent, splicing-dependent, yet RNA sequence-independent, association suggests an important signaling function and must require distinct structural features for these proteins. RESULTS: We describe the high-resolution structure and biochemical properties of the highly conserved human Y14 and Magoh proteins. Magoh has an unusual structure comprised of an extremely flat, six-stranded anti-parallel beta sheet packed against two helices. Surprisingly, Magoh binds with high affinity to the RNP motif RNA binding domain (RBD) of Y14 and completely masks its RNA binding surface. CONCLUSIONS: The structure and properties of the Y14-Magoh complex suggest how the pre-mRNA splicing machinery might control the formation of a stable EJC-mRNA complex at splice junctions.
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{{ABSTRACT_PUBMED_12781131}}


==About this Structure==
==About this Structure==
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[[Category: Nuclear protein]]
[[Category: Nuclear protein]]
[[Category: Rna-binding]]
[[Category: Rna-binding]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 17:39:28 2008''

Revision as of 14:39, 28 July 2008

File:1p27.png

Template:STRUCTURE 1p27

Crystal Structure of the Human Y14/Magoh complex

Template:ABSTRACT PUBMED 12781131

About this Structure

1P27 is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structure of the Y14-Magoh core of the exon junction complex., Lau CK, Diem MD, Dreyfuss G, Van Duyne GD, Curr Biol. 2003 May 27;13(11):933-41. PMID:12781131

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