1k8w
From Proteopedia
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==Crystal structure of the E. coli pseudouridine synthase TruB bound to a T stem-loop RNA== | ==Crystal structure of the E. coli pseudouridine synthase TruB bound to a T stem-loop RNA== | ||
| - | <StructureSection load='1k8w' size='340' side='right' caption='[[1k8w]], [[Resolution|resolution]] 1.85Å' scene=''> | + | <StructureSection load='1k8w' size='340' side='right'caption='[[1k8w]], [[Resolution|resolution]] 1.85Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1k8w]] is a 2 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[1k8w]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1K8W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1K8W FirstGlance]. <br> |
| - | </td></tr><tr><td class="sblockLbl"><b>[[ | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.85Å</td></tr> |
| - | <tr><td class="sblockLbl"><b>[[ | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FHU:(5S,6R)-5-FLUORO-6-HYDROXY-PSEUDOURIDINE-5-MONOPHOSPHATE'>FHU</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=1k8w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k8w OCA], [https://pdbe.org/1k8w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1k8w RCSB], [https://www.ebi.ac.uk/pdbsum/1k8w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1k8w ProSAT]</span></td></tr> | |
| - | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | </table> |
| - | <table> | + | == Function == |
| + | [https://www.uniprot.org/uniprot/TRUB_ECOLI TRUB_ECOLI] Responsible for synthesis of pseudouridine from uracil-55 in the psi GC loop of transfer RNAs.<ref>PMID:7489483</ref> <ref>PMID:11142385</ref> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k8/1k8w_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k8/1k8w_consurf.spt"</scriptWhenChecked> |
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </jmolCheckbox> | ||
| - | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/ | + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1k8w ConSurf]. |
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | Pseudouridine (Psi) synthases catalyze the isomerization of specific uridines in cellular RNAs to pseudouridines and may function as RNA chaperones. TruB is responsible for the Psi residue present in the T loops of virtually all tRNAs. The close homolog Cbf5/dyskerin is the catalytic subunit of box H/ACA snoRNPs. These carry out the pseudouridylation of eukaryotic rRNA and snRNAs. The 1.85 A resolution structure of TruB bound to RNA reveals that this enzyme recognizes the preformed three-dimensional structure of the T loop, primarily through shape complementarity. It accesses its substrate uridyl residue by flipping out the nucleotide and disrupts the tertiary structure of tRNA. Structural comparisons with TruB demonstrate that all Psi synthases are descended from a common molecular ancestor. | ||
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| - | Cocrystal structure of a tRNA Psi55 pseudouridine synthase: nucleotide flipping by an RNA-modifying enzyme.,Hoang C, Ferre-D'Amare AR Cell. 2001 Dec 28;107(7):929-39. PMID:11779468<ref>PMID:11779468</ref> | ||
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
==See Also== | ==See Also== | ||
| - | *[[ | + | *[[Guide-independent Pseudouridine synthase|Guide-independent Pseudouridine synthase]] |
| + | *[[Pseudouridine synthase 3D structures|Pseudouridine synthase 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Ferre-D'Amare AR]] |
| - | [[Category: Hoang | + | [[Category: Hoang C]] |
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Current revision
Crystal structure of the E. coli pseudouridine synthase TruB bound to a T stem-loop RNA
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