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| | ==Crystal structure of human Brr2 in complex with the Prp8 Jab1/MPN domain== | | ==Crystal structure of human Brr2 in complex with the Prp8 Jab1/MPN domain== |
| - | <StructureSection load='4kit' size='340' side='right' caption='[[4kit]], [[Resolution|resolution]] 3.60Å' scene=''> | + | <StructureSection load='4kit' size='340' side='right'caption='[[4kit]], [[Resolution|resolution]] 3.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4kit]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4KIT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4KIT FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4kit]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4KIT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4KIT FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SNRNP200, ASCC3L1, HELIC2, KIAA0788 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), PRPF8, PRPC8 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4kit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4kit OCA], [https://pdbe.org/4kit PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4kit RCSB], [https://www.ebi.ac.uk/pdbsum/4kit PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4kit ProSAT]</span></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA_helicase RNA helicase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.4.13 3.6.4.13] </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=4kit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4kit OCA], [http://pdbe.org/4kit PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4kit RCSB], [http://www.ebi.ac.uk/pdbsum/4kit PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4kit ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Disease == | | == Disease == |
| - | [[http://www.uniprot.org/uniprot/U520_HUMAN U520_HUMAN]] Retinitis pigmentosa. Retinitis pigmentosa 33 (RP33) [MIM:[http://omim.org/entry/610359 610359]]: A retinal dystrophy belonging to the group of pigmentary retinopathies. Retinitis pigmentosa is characterized by retinal pigment deposits visible on fundus examination and primary loss of rod photoreceptor cells followed by secondary loss of cone photoreceptors. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. Note=The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:16723661</ref> <ref>PMID:23045696</ref> <ref>PMID:19878916</ref> <ref>PMID:19710410</ref> <ref>PMID:21618346</ref> [[http://www.uniprot.org/uniprot/PRP8_HUMAN PRP8_HUMAN]] Defects in PRPF8 are the cause of retinitis pigmentosa type 13 (RP13) [MIM:[http://omim.org/entry/600059 600059]]. RP leads to degeneration of retinal photoreceptor cells. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. RP13 inheritance is autosomal dominant.<ref>PMID:17317632</ref> <ref>PMID:11468273</ref> [:]<ref>PMID:11910553</ref> <ref>PMID:12714658</ref> | + | [https://www.uniprot.org/uniprot/U520_HUMAN U520_HUMAN] Retinitis pigmentosa. Retinitis pigmentosa 33 (RP33) [MIM:[https://omim.org/entry/610359 610359]: A retinal dystrophy belonging to the group of pigmentary retinopathies. Retinitis pigmentosa is characterized by retinal pigment deposits visible on fundus examination and primary loss of rod photoreceptor cells followed by secondary loss of cone photoreceptors. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. Note=The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:16723661</ref> <ref>PMID:23045696</ref> <ref>PMID:19878916</ref> <ref>PMID:19710410</ref> <ref>PMID:21618346</ref> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/U520_HUMAN U520_HUMAN]] RNA helicase that plays an essential role in pre-mRNA splicing as component of the U5 snRNP and U4/U6-U5 tri-snRNP complexes. Involved in spliceosome assembly, activation and disassembly. Mediates changes in the dynamic network of RNA-RNA interactions in the spliceosome. Catalyzes the ATP-dependent unwinding of U4/U6 RNA duplices, an essential step in the assembly of a catalytically active spliceosome.<ref>PMID:16723661</ref> <ref>PMID:8670905</ref> <ref>PMID:9539711</ref> <ref>PMID:23045696</ref> [[http://www.uniprot.org/uniprot/PRP8_HUMAN PRP8_HUMAN]] Central component of the spliceosome, which may play a role in aligning the pre-mRNA 5'- and 3'-exons for ligation. Interacts with U5 snRNA, and with pre-mRNA 5'-splice sites in B spliceosomes and 3'-splice sites in C spliceosomes. | + | [https://www.uniprot.org/uniprot/U520_HUMAN U520_HUMAN] RNA helicase that plays an essential role in pre-mRNA splicing as component of the U5 snRNP and U4/U6-U5 tri-snRNP complexes. Involved in spliceosome assembly, activation and disassembly. Mediates changes in the dynamic network of RNA-RNA interactions in the spliceosome. Catalyzes the ATP-dependent unwinding of U4/U6 RNA duplices, an essential step in the assembly of a catalytically active spliceosome.<ref>PMID:16723661</ref> <ref>PMID:8670905</ref> <ref>PMID:9539711</ref> <ref>PMID:23045696</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | ==See Also== | | ==See Also== |
| - | *[[Pre-mRNA-splicing factor|Pre-mRNA-splicing factor]] | + | *[[Pre-mRNA splicing factors 3D structures|Pre-mRNA splicing factors 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| - | [[Category: RNA helicase]] | + | [[Category: Large Structures]] |
| - | [[Category: Santos, K F]] | + | [[Category: Santos KF]] |
| - | [[Category: Wahl, M C]] | + | [[Category: Wahl MC]] |
| - | [[Category: Wandersleben, T]] | + | [[Category: Wandersleben T]] |
| - | [[Category: Atp binding]]
| + | |
| - | [[Category: Jab1/mpn domain]]
| + | |
| - | [[Category: Pre-mrna splicing]]
| + | |
| - | [[Category: Reca domain]]
| + | |
| - | [[Category: Rna binding]]
| + | |
| - | [[Category: Rna binding protein]]
| + | |
| - | [[Category: Sec63 unit]]
| + | |
| - | [[Category: Ubiquitin binding]]
| + | |
| - | [[Category: Winged helix domain]]
| + | |
| Structural highlights
Disease
U520_HUMAN Retinitis pigmentosa. Retinitis pigmentosa 33 (RP33) [MIM:610359: A retinal dystrophy belonging to the group of pigmentary retinopathies. Retinitis pigmentosa is characterized by retinal pigment deposits visible on fundus examination and primary loss of rod photoreceptor cells followed by secondary loss of cone photoreceptors. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. Note=The disease is caused by mutations affecting the gene represented in this entry.[1] [2] [3] [4] [5]
Function
U520_HUMAN RNA helicase that plays an essential role in pre-mRNA splicing as component of the U5 snRNP and U4/U6-U5 tri-snRNP complexes. Involved in spliceosome assembly, activation and disassembly. Mediates changes in the dynamic network of RNA-RNA interactions in the spliceosome. Catalyzes the ATP-dependent unwinding of U4/U6 RNA duplices, an essential step in the assembly of a catalytically active spliceosome.[6] [7] [8] [9]
Publication Abstract from PubMed
The Ski2-like RNA helicase Brr2 is a core component of the spliceosome that must be tightly regulated to ensure correct timing of spliceosome activation. Little is known about mechanisms of regulation of Ski2-like helicases by protein cofactors. Here, we show by crystal structure and biochemical analyses that the Prp8 protein, a major regulator of the spliceosome, can insert its C-terminal tail into Brr2's RNA-binding tunnel, thereby intermittently blocking Brr2's RNA binding, ATPase and U4/U6 unwinding activities. Inefficient Brr2 repression is the only recognizable phenotype associated with certain retinitis pigmentosa-linked Prp8 mutations that map to its C-terminal tail. Our data show how a Ski2-like RNA helicase can be reversibly inhibited by a protein cofactor that directly competes with RNA substrate binding.
Inhibition of RNA Helicase Brr2 by the C-Terminal Tail of the Spliceosomal Protein Prp8.,Mozaffari-Jovin S, Wandersleben T, Santos KF, Will CL, Luhrmann R, Wahl MC Science. 2013 May 23. PMID:23704370[10]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Liu S, Rauhut R, Vornlocher HP, Luhrmann R. The network of protein-protein interactions within the human U4/U6.U5 tri-snRNP. RNA. 2006 Jul;12(7):1418-30. Epub 2006 May 24. PMID:16723661 doi:rna.55406
- ↑ Santos KF, Jovin SM, Weber G, Pena V, Luhrmann R, Wahl MC. Structural basis for functional cooperation between tandem helicase cassettes in Brr2-mediated remodeling of the spliceosome. Proc Natl Acad Sci U S A. 2012 Oct 8. PMID:23045696 doi:10.1073/pnas.1208098109
- ↑ Zhao C, Bellur DL, Lu S, Zhao F, Grassi MA, Bowne SJ, Sullivan LS, Daiger SP, Chen LJ, Pang CP, Zhao K, Staley JP, Larsson C. Autosomal-dominant retinitis pigmentosa caused by a mutation in SNRNP200, a gene required for unwinding of U4/U6 snRNAs. Am J Hum Genet. 2009 Nov;85(5):617-27. Epub 2009 Oct 29. PMID:19878916 doi:S0002-9297(09)00455-8
- ↑ Li N, Mei H, MacDonald IM, Jiao X, Hejtmancik JF. Mutations in ASCC3L1 on 2q11.2 are associated with autosomal dominant retinitis pigmentosa in a Chinese family. Invest Ophthalmol Vis Sci. 2010 Feb;51(2):1036-43. doi: 10.1167/iovs.09-3725., Epub 2009 Aug 26. PMID:19710410 doi:10.1167/iovs.09-3725
- ↑ Benaglio P, McGee TL, Capelli LP, Harper S, Berson EL, Rivolta C. Next generation sequencing of pooled samples reveals new SNRNP200 mutations associated with retinitis pigmentosa. Hum Mutat. 2011 Jun;32(6):E2246-58. doi: 10.1002/humu.21485. Epub 2011 Feb 24. PMID:21618346 doi:10.1002/humu.21485
- ↑ Liu S, Rauhut R, Vornlocher HP, Luhrmann R. The network of protein-protein interactions within the human U4/U6.U5 tri-snRNP. RNA. 2006 Jul;12(7):1418-30. Epub 2006 May 24. PMID:16723661 doi:rna.55406
- ↑ Lauber J, Fabrizio P, Teigelkamp S, Lane WS, Hartmann E, Luhrmann R. The HeLa 200 kDa U5 snRNP-specific protein and its homologue in Saccharomyces cerevisiae are members of the DEXH-box protein family of putative RNA helicases. EMBO J. 1996 Aug 1;15(15):4001-15. PMID:8670905
- ↑ Laggerbauer B, Achsel T, Luhrmann R. The human U5-200kD DEXH-box protein unwinds U4/U6 RNA duplices in vitro. Proc Natl Acad Sci U S A. 1998 Apr 14;95(8):4188-92. PMID:9539711
- ↑ Santos KF, Jovin SM, Weber G, Pena V, Luhrmann R, Wahl MC. Structural basis for functional cooperation between tandem helicase cassettes in Brr2-mediated remodeling of the spliceosome. Proc Natl Acad Sci U S A. 2012 Oct 8. PMID:23045696 doi:10.1073/pnas.1208098109
- ↑ Mozaffari-Jovin S, Wandersleben T, Santos KF, Will CL, Luhrmann R, Wahl MC. Inhibition of RNA Helicase Brr2 by the C-Terminal Tail of the Spliceosomal Protein Prp8. Science. 2013 May 23. PMID:23704370 doi:10.1126/science.1237515
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