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2og4

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Revision as of 09:00, 18 October 2017

Structure of an expanded Jab1-MPN-like domain of splicing factor Prp8p from yeast

Structural highlights

2og4 is a 1 chain structure with sequence from Baker's yeast. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:	PRP8, DBF3, DNA39, RNA8, SLT21, USA2 (Baker's yeast)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PRP8_YEAST] Required for pre-spliceosome formation, which is the first step of pre-mRNA splicing. This protein is associated with snRNP U5. Has a role in branch site-3' splice site selection. Associates with the branch site-3' splice 3'-exon region. Also has a role in cell cycle.^[1] ^[2] ^[3] ^[4]

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

Protein Prp8 interacts with several other spliceosomal proteins, snRNAs, and the pre-mRNA and thereby organizes the active site(s) of the spliceosome. The DEAD-box protein Brr2 and the GTPase Snu114 bind to the Prp8 C terminus, a region where mutations in human Prp8 are linked to the RP13 form of Retinitis pigmentosa. We show crystallographically that the C-terminal domain of yeast Prp8p exhibits a Jab1/MPN-like core known from deubiquitinating enzymes. Insertions and terminal appendices are grafted onto this core, covering a putative isopeptidase center whose metal binding site is additionally impaired. Targeted yeast-two-hybrid analyses show that the RP13-linked region in the C-terminal appendix of human Prp8 is essential for binding of human Brr2 and Snu114, and that RP13 point mutations in this fragment weaken these interactions. We conclude that the expanded Prp8 Jab1/MPN domain represents a pseudoenzyme converted into a protein-protein interaction platform and that dysfunction of this platform underlies Retinitis pigmentosa.

Structure of a multipartite protein-protein interaction domain in splicing factor prp8 and its link to retinitis pigmentosa.,Pena V, Liu S, Bujnicki JM, Luhrmann R, Wahl MC Mol Cell. 2007 Feb 23;25(4):615-24. PMID:17317632^[5]

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

References

↑ Jackson SP, Lossky M, Beggs JD. Cloning of the RNA8 gene of Saccharomyces cerevisiae, detection of the RNA8 protein, and demonstration that it is essential for nuclear pre-mRNA splicing. Mol Cell Biol. 1988 Mar;8(3):1067-75. PMID:2835658
↑ Abovich N, Rosbash M. Cross-intron bridging interactions in the yeast commitment complex are conserved in mammals. Cell. 1997 May 2;89(3):403-12. PMID:9150140
↑ McPheeters DS, Muhlenkamp P. Spatial organization of protein-RNA interactions in the branch site-3' splice site region during pre-mRNA splicing in yeast. Mol Cell Biol. 2003 Jun;23(12):4174-86. PMID:12773561
↑ Yang K, Zhang L, Xu T, Heroux A, Zhao R. Crystal structure of the beta-finger domain of Prp8 reveals analogy to ribosomal proteins. Proc Natl Acad Sci U S A. 2008 Sep 16;105(37):13817-22. Epub 2008 Sep 8. PMID:18779563
↑ Pena V, Liu S, Bujnicki JM, Luhrmann R, Wahl MC. Structure of a multipartite protein-protein interaction domain in splicing factor prp8 and its link to retinitis pigmentosa. Mol Cell. 2007 Feb 23;25(4):615-24. PMID:17317632 doi:10.1016/j.molcel.2007.01.023

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/2og4"

@@ Line 1: / Line 1: @@
 ==Structure of an expanded Jab1-MPN-like domain of splicing factor Prp8p from yeast==
 <StructureSection load='2og4' size='340' side='right' caption='[[2og4]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
@@ Line 4: / Line 5: @@
 <table><tr><td colspan='2'>[[2og4]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Baker's_yeast Baker's yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OG4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2OG4 FirstGlance]. <br>
 </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PRP8, DBF3, DNA39, RNA8, SLT21, USA2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=285006 Baker's yeast])</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=2og4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2og4 OCA], [http://pdbe.org/2og4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2og4 RCSB], [http://www.ebi.ac.uk/pdbsum/2og4 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=2og4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2og4 OCA], [http://pdbe.org/2og4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2og4 RCSB], [http://www.ebi.ac.uk/pdbsum/2og4 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2og4 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 29: / Line 30: @@
 ==See Also==
-*[[Pre-mRNA-splicing factor|Pre-mRNA-splicing factor]]
 *[[Pseudoenzyme|Pseudoenzyme]]
 == References ==

2og4

From Proteopedia

Revision as of 09:00, 18 October 2017

Structure of an expanded Jab1-MPN-like domain of splicing factor Prp8p from yeast

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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