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2p87

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Revision as of 07:31, 22 August 2018

Crystal structure of the C-terminal domain of C. elegans pre-mRNA splicing factor Prp8

Structural highlights

2p87 is a 1 chain structure with sequence from Caeel. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:	prp-8 (CAEEL)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[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

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

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^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Zhang L, Shen J, Guarnieri MT, Heroux A, Yang K, Zhao R. Crystal structure of the C-terminal domain of splicing factor Prp8 carrying retinitis pigmentosa mutants. Protein Sci. 2007 Jun;16(6):1024-31. Epub 2007 May 1. PMID:17473007 doi:10.1110/ps.072872007

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2p87"

@@ Line 1: / Line 1: @@
 ==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]] 2.30&Aring;' scene=''>
@@ Line 4: / Line 5: @@
 <table><tr><td colspan='2'>[[2p87]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Caeel Caeel]. 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 [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2P87 FirstGlance]. <br>
 </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">prp-8 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6239 CAEEL])</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2p87 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p87 OCA], [http://pdbe.org/2p87 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2p87 RCSB], [http://www.ebi.ac.uk/pdbsum/2p87 PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2p87 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p87 OCA], [http://pdbe.org/2p87 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2p87 RCSB], [http://www.ebi.ac.uk/pdbsum/2p87 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2p87 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 12: / Line 13: @@
 Check<jmol>
   <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>
     <text>to colour the structure by Evolutionary Conservation</text>

2p87

From Proteopedia

Revision as of 07:31, 22 August 2018

Crystal structure of the C-terminal domain of C. elegans pre-mRNA splicing factor Prp8

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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