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1dvk

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{{STRUCTURE_1dvk| PDB=1dvk | SCENE= }}
{{STRUCTURE_1dvk| PDB=1dvk | SCENE= }}
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'''CRYSTAL STRUCTURE OF THE FUNCTIONAL DOMAIN OF THE SPLICING FACTOR PRP18'''
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===CRYSTAL STRUCTURE OF THE FUNCTIONAL DOMAIN OF THE SPLICING FACTOR PRP18===
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==Overview==
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The splicing factor Prp18 is required for the second step of pre-mRNA splicing. We have isolated and determined the crystal structure of a large fragment of the Saccharomyces cerevisiae Prp18 that lacks the N-terminal 79 amino acids. This fragment, called Prp18Delta79, is fully active in yeast splicing in vitro and includes the sequences of Prp18 that have been evolutionarily conserved. The core structure of Prp18Delta79 is compact and globular, consisting of five alpha-helices that adopt a novel fold that we have designated the five-helix X-bundle. The structure suggests that one face of Prp18 interacts with the splicing factor Slu7, whereas the more evolutionarily conserved amino acids in Prp18 form the opposite face. The most highly conserved region of Prp18, a nearly invariant stretch of 19 aa, forms part of a loop between two alpha-helices and may interact with the U5 small nuclear ribonucleoprotein particles. The structure is consistent with a model in which Prp18 forms a bridge between Slu7 and the U5 small nuclear ribonucleoprotein particles.
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(as it appears on PubMed at http://www.pubmed.gov), where 10737784 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10737784}}
==About this Structure==
==About this Structure==
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[[Category: Prp18]]
[[Category: Prp18]]
[[Category: X-ray crystallography]]
[[Category: X-ray crystallography]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:20:02 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 23:41:08 2008''

Revision as of 20:41, 30 June 2008

Image:1dvk.png

Template:STRUCTURE 1dvk

CRYSTAL STRUCTURE OF THE FUNCTIONAL DOMAIN OF THE SPLICING FACTOR PRP18

Template:ABSTRACT PUBMED 10737784

About this Structure

1DVK is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

Crystal structure of the functional domain of the splicing factor Prp18., Jiang J, Horowitz DS, Xu RM, Proc Natl Acad Sci U S A. 2000 Mar 28;97(7):3022-7. PMID:10737784

Page seeded by OCA on Mon Jun 30 23:41:08 2008

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