3l7z

From Proteopedia

(Difference between revisions)

Current revision

Crystal structure of the S. solfataricus archaeal exosome

Structural highlights

3l7z is a 9 chain structure with sequence from Saccharolobus solfataricus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.41Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RRP42_SACS2 Non-catalytic component of the exosome, which is a complex involved in RNA degradation. Contributes to the structuring of the Rrp41 active site.[HAMAP-Rule:MF_00622]^[1] ^[2]

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

BACKGROUND: The exosome complex is an essential RNA 3'-end processing and degradation machinery. In archaeal organisms, the exosome consists of a catalytic ring and an RNA-binding ring, both of which were previously reported to assume three-fold symmetry. METHODOLOGY/PRINCIPAL FINDINGS: Here we report an asymmetric 2.9 A Sulfolobus solfataricus archaeal exosome structure in which the three-fold symmetry is broken due to combined rigid body and thermal motions mainly within the RNA-binding ring. Since increased conformational flexibility was also observed in the RNA-binding ring of the related bacterial PNPase, we speculate that this may reflect an evolutionarily conserved mechanism to accommodate diverse RNA substrates for degradation. CONCLUSION/SIGNIFICANCE: This study clearly shows the dynamic structures within the RNA-binding domains, which provides additional insights on mechanism of asymmetric RNA binding and processing.

Crystal structure of the S. solfataricus archaeal exosome reveals conformational flexibility in the RNA-binding ring.,Lu C, Ding F, Ke A PLoS One. 2010 Jan 15;5(1):e8739. PMID:20090900^[3]

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

References

↑ Lorentzen E, Walter P, Fribourg S, Evguenieva-Hackenberg E, Klug G, Conti E. The archaeal exosome core is a hexameric ring structure with three catalytic subunits. Nat Struct Mol Biol. 2005 Jul;12(7):575-81. Epub 2005 Jun 12. PMID:15951817 doi:10.1038/nsmb952
↑ Roppelt V, Klug G, Evguenieva-Hackenberg E. The evolutionarily conserved subunits Rrp4 and Csl4 confer different substrate specificities to the archaeal exosome. FEBS Lett. 2010 Jul 2;584(13):2931-6. PMID:20488184 doi:10.1016/j.febslet.2010.05.014
↑ Lu C, Ding F, Ke A. Crystal structure of the S. solfataricus archaeal exosome reveals conformational flexibility in the RNA-binding ring. PLoS One. 2010 Jan 15;5(1):e8739. PMID:20090900 doi:10.1371/journal.pone.0008739

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3l7z"

Categories: Large Structures | Saccharolobus solfataricus | Ding F | Ke A | Lu C

@@ Line 3: / Line 3: @@
 <StructureSection load='3l7z' size='340' side='right'caption='[[3l7z]], [[Resolution|resolution]] 2.41&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3l7z]] is a 9 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_35091 Atcc 35091]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3L7Z OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3L7Z FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3l7z]] is a 9 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharolobus_solfataricus Saccharolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3L7Z OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3L7Z FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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]] 2.41&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">C20_023, Rrp41/42/4, SSO0732 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091]), SSO0735 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091]), C20_026, SSO0736 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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=3l7z FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3l7z OCA], [https://pdbe.org/3l7z PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3l7z RCSB], [https://www.ebi.ac.uk/pdbsum/3l7z PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3l7z ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/ECX2_SULSO ECX2_SULSO]] Probably involved in the 3'->5' degradation of a variety of RNA species (Potential). [[https://www.uniprot.org/uniprot/ECR1_SULSO ECR1_SULSO]] Probably involved in degradation of a variety of RNA species; could act a RNA-binding component of the exosome (Potential). [[https://www.uniprot.org/uniprot/ECX1_SULSO ECX1_SULSO]] Probably involved in the 3'->5' degradation of a variety of RNA species (Potential).
+[https://www.uniprot.org/uniprot/RRP42_SACS2 RRP42_SACS2] Non-catalytic component of the exosome, which is a complex involved in RNA degradation. Contributes to the structuring of the Rrp41 active site.[HAMAP-Rule:MF_00622]<ref>PMID:15951817</ref> <ref>PMID:20488184</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 15: / Line 15: @@
   <jmolCheckbox>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l7/3l7z_consurf.spt"</scriptWhenChecked>
-    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
@@ Line 33: / Line 33: @@
 __TOC__
 </StructureSection>
-[[Category: Atcc 35091]]
 [[Category: Large Structures]]
-[[Category: Ding, F]]
+[[Category: Saccharolobus solfataricus]]
-[[Category: Ke, A]]
+[[Category: Ding F]]
-[[Category: Lu, C]]
+[[Category: Ke A]]
-[[Category: Asymmetry]]
+[[Category: Lu C]]
-[[Category: Conformation flexibility]]
-[[Category: Exosome]]
-[[Category: Hydrolase-rna binding protein complex]]
-[[Category: Rna degradation]]
-[[Category: Rna processing]]
-[[Category: Thermal motion]]

3l7z

From Proteopedia

Current revision

Crystal structure of the S. solfataricus archaeal exosome

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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