4rvq: Difference between revisions

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==PWI-like domain of Chaetomium thermophilum Brr2==
==PWI-like domain of Chaetomium thermophilum Brr2==
<StructureSection load='4rvq' size='340' side='right' caption='[[4rvq]], [[Resolution|resolution]] 1.14&Aring;' scene=''>
<StructureSection load='4rvq' size='340' side='right'caption='[[4rvq]], [[Resolution|resolution]] 1.14&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4rvq]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4RVQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4RVQ FirstGlance]. <br>
<table><tr><td colspan='2'>[[4rvq]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Chaetomium_thermophilum Chaetomium thermophilum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4RVQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4RVQ FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.135&#8491;</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=4rvq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4rvq OCA], [http://pdbe.org/4rvq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4rvq RCSB], [http://www.ebi.ac.uk/pdbsum/4rvq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4rvq ProSAT]</span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=4rvq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4rvq OCA], [https://pdbe.org/4rvq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4rvq RCSB], [https://www.ebi.ac.uk/pdbsum/4rvq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4rvq ProSAT]</span></td></tr>
</table>
</table>
<div style="background-color:#fffaf0;">
== Function ==
== Publication Abstract from PubMed ==
[https://www.uniprot.org/uniprot/G0S0B9_CHATD G0S0B9_CHATD]
The spliceosomal RNA helicase Brr2 is required for the assembly of a catalytically active spliceosome on a messenger RNA precursor. Brr2 exhibits an unusual organization with tandem helicase units, each comprising dual RecA-like domains and a Sec63 homology unit, preceded by a more than 400-residue N-terminal helicase-associated region. Whereas recent crystal structures have provided insights into the molecular architecture and regulation of the Brr2 helicase region, little is known about the structural organization and function of its N-terminal part. Here, a near-atomic resolution crystal structure of a PWI-like domain that resides in the N-terminal region of Chaetomium thermophilum Brr2 is presented. CD spectroscopic studies suggested that this domain is conserved in the yeast and human Brr2 orthologues. Although canonical PWI domains act as low-specificity nucleic acid-binding domains, no significant affinity of the unusual PWI domain of Brr2 for a broad spectrum of DNAs and RNAs was detected in band-shift assays. Consistently, the C. thermophilum Brr2 PWI-like domain, in the conformation seen in the present crystal structure, lacks an expanded positively charged surface patch as observed in at least one canonical, nucleic acid-binding PWI domain. Instead, in a comprehensive yeast two-hybrid screen against human spliceosomal proteins, fragments of the N-terminal region of human Brr2 were found to interact with several other spliceosomal proteins. At least one of these interactions, with the Prp19 complex protein SPF27, depended on the presence of the PWI-like domain. The results suggest that the N-terminal region of Brr2 serves as a versatile protein-protein interaction platform in the spliceosome and that some interactions require or are reinforced by the PWI-like domain.


A noncanonical PWI domain in the N-terminal helicase-associated region of the spliceosomal Brr2 protein.,Absmeier E, Rosenberger L, Apelt L, Becke C, Santos KF, Stelzl U, Wahl MC Acta Crystallogr D Biol Crystallogr. 2015 Apr;71(Pt 4):762-71. doi:, 10.1107/S1399004715001005. Epub 2015 Mar 26. PMID:25849387<ref>PMID:25849387</ref>
==See Also==
 
*[[Helicase 3D structures|Helicase 3D structures]]
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4rvq" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Absmeier, E]]
[[Category: Chaetomium thermophilum]]
[[Category: Becke, C]]
[[Category: Large Structures]]
[[Category: Rosenberger, L]]
[[Category: Absmeier E]]
[[Category: Santos, K F]]
[[Category: Becke C]]
[[Category: Wahl, M C]]
[[Category: Rosenberger L]]
[[Category: Pre-mrna splicing]]
[[Category: Santos KF]]
[[Category: Protein binding]]
[[Category: Wahl MC]]
[[Category: Protein-protein interaction]]
[[Category: Protein-rna interaction]]
[[Category: Pwi domain]]

Latest revision as of 15:56, 1 March 2024

PWI-like domain of Chaetomium thermophilum Brr2PWI-like domain of Chaetomium thermophilum Brr2

Structural highlights

4rvq is a 1 chain structure with sequence from Chaetomium thermophilum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.135Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

G0S0B9_CHATD

See Also

4rvq, resolution 1.14Å

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