2j8p

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{{STRUCTURE_2j8p| PDB=2j8p | SCENE= }}
{{STRUCTURE_2j8p| PDB=2j8p | SCENE= }}
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'''NMR STRUCTURE OF C-TERMINAL DOMAIN OF HUMAN CSTF-64'''
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===NMR STRUCTURE OF C-TERMINAL DOMAIN OF HUMAN CSTF-64===
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==Overview==
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Yeast Rna15 and its vertebrate orthologue CstF-64 play critical roles in mRNA 3 '-end processing and in transcription termination downstream of poly(A) sites. These proteins contain N-terminal domains that recognize the poly(A) site, but little is known about their highly conserved C-terminal regions. Here we show by NMR that the C-terminal domains of CstF-64 and Rna15 fold into a three-helix bundle with an uncommon topological arrangement. The structure defines a cluster of evolutionary conserved yet exposed residues we show to be essential for the interaction between Pcf11 and Rna15. Furthermore, we demonstrate that this interaction is critical for the function of Rna15 in 3 '-end processing but dispensable for transcription termination. The C-terminal domain of the Rna15 homologue Pti1 contains critical sequence alterations within this region that are predicted to prevent Pcf11 interaction, providing an explanation for the distinct functions of these two closely related proteins in the 3 '-end formation of RNA polymerase II transcripts. These results define the role of the C-terminal half of Rna15 and provide insight into the network of protein/protein interactions responsible for assembly of the 3 '-end processing apparatus.
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{{ABSTRACT_PUBMED_17116658}}
==About this Structure==
==About this Structure==
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2J8P is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J8P OCA].
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2J8P is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J8P OCA].
==Reference==
==Reference==
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[[Category: Phosphorylation]]
[[Category: Phosphorylation]]
[[Category: Rna-binding]]
[[Category: Rna-binding]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 08:30:58 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 12:28:15 2008''

Revision as of 09:28, 28 July 2008

Image:2j8p.png

Template:STRUCTURE 2j8p

NMR STRUCTURE OF C-TERMINAL DOMAIN OF HUMAN CSTF-64

Template:ABSTRACT PUBMED 17116658

About this Structure

2J8P is a Single protein structure of sequence from Homo sapiens. Full experimental information is available from OCA.

Reference

The C-terminal domains of vertebrate CstF-64 and its yeast orthologue Rna15 form a new structure critical for mRNA 3'-end processing., Qu X, Perez-Canadillas JM, Agrawal S, De Baecke J, Cheng H, Varani G, Moore C, J Biol Chem. 2007 Jan 19;282(3):2101-15. Epub 2006 Nov 20. PMID:17116658

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