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2p87
From Proteopedia
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==Crystal structure of the C-terminal domain of C. elegans pre-mRNA splicing factor Prp8== | ==Crystal structure of the C-terminal domain of C. elegans pre-mRNA splicing factor Prp8== | ||
| - | <StructureSection load='2p87' size='340' side='right' caption='[[2p87]], [[Resolution|resolution]] 2.30Å' scene=''> | + | <StructureSection load='2p87' size='340' side='right'caption='[[2p87]], [[Resolution|resolution]] 2.30Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[2p87]] is a 1 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[2p87]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Caenorhabditis_elegans Caenorhabditis elegans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2P87 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2P87 FirstGlance]. <br> |
| - | </td></tr><tr><td class="sblockLbl"><b>[[ | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3Å</td></tr> |
| - | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2p87 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p87 OCA], [https://pdbe.org/2p87 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2p87 RCSB], [https://www.ebi.ac.uk/pdbsum/2p87 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2p87 ProSAT]</span></td></tr> |
| - | <table> | + | </table> |
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/PRP8_CAEEL PRP8_CAEEL] Functions as a scaffold that mediates the ordered assembly of spliceosomal proteins and snRNAs. Required for the assembly of the U4/U6-U5 tri-snRNP complex. Functions as scaffold that positions spliceosomal U2, U5 and U6 snRNAs at splice sites on pre-mRNA substrates, so that splicing can occur. Interacts with both the 5' and the 3' splice site (By similarity). | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/p8/2p87_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/p8/2p87_consurf.spt"</scriptWhenChecked> |
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </jmolCheckbox> | ||
| - | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/ | + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2p87 ConSurf]. |
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | Prp8 is a critical pre-mRNA splicing factor. Prp8 is proposed to help form and stabilize the spliceosome catalytic core and to be an important regulator of spliceosome activation. Mutations in human Prp8 (hPrp8) cause a severe form of the genetic disorder retinitis pigmentosa, RP13. Understanding the molecular mechanism of Prp8's function in pre-mRNA splicing and RP13 has been hindered by its large size (over 2000 amino acids) and remarkably low-sequence similarity with other proteins. Here we present the crystal structure of the C-terminal domain (the last 273 residues) of Caenorhabditis elegans Prp8 (cPrp8). The core of the C-terminal domain is an alpha/beta structure that forms the MPN (Mpr1, Pad1 N-terminal) fold but without Zn(2+) coordination. We propose that the C-terminal domain is a protein interaction domain instead of a Zn(2+)-dependent metalloenzyme as proposed for some MPN proteins. Mapping of RP13 mutants on the Prp8 structure suggests that these residues constitute a binding surface between Prp8 and other partner(s), and the disruption of this interaction provides a plausible molecular mechanism for RP13. | ||
| - | |||
| - | Crystal structure of the C-terminal domain of splicing factor Prp8 carrying retinitis pigmentosa mutants.,Zhang L, Shen J, Guarnieri MT, Heroux A, Yang K, Zhao R Protein Sci. 2007 Jun;16(6):1024-31. Epub 2007 May 1. PMID:17473007<ref>PMID:17473007</ref> | ||
| - | |||
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
==See Also== | ==See Also== | ||
| - | *[[Pre-mRNA | + | *[[Pre-mRNA splicing factors 3D structures|Pre-mRNA splicing factors 3D structures]] |
| - | + | ||
| - | + | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Caenorhabditis elegans]] | [[Category: Caenorhabditis elegans]] | ||
| - | [[Category: Guarnieri | + | [[Category: Large Structures]] |
| - | [[Category: Heroux | + | [[Category: Guarnieri MT]] |
| - | [[Category: Shen | + | [[Category: Heroux A]] |
| - | [[Category: Yang | + | [[Category: Shen J]] |
| - | [[Category: Zhang | + | [[Category: Yang K]] |
| - | [[Category: Zhao | + | [[Category: Zhang L]] |
| - | + | [[Category: Zhao R]] | |
| - | + | ||
Current revision
Crystal structure of the C-terminal domain of C. elegans pre-mRNA splicing factor Prp8
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