2hvr
From Proteopedia
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(New page: 200px<br /><applet load="2hvr" size="450" color="white" frame="true" align="right" spinBox="true" caption="2hvr, resolution 2.450Å" /> '''Structure of T4 RNA...) |
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| - | [[Image:2hvr.gif|left|200px]]<br /><applet load="2hvr" size="450" color="white" frame="true" align="right" spinBox="true" | ||
| - | caption="2hvr, resolution 2.450Å" /> | ||
| - | '''Structure of T4 RNA Ligase 2 with Nicked 5'-Adenylated nucleic acid duplex containing a 3'-deoxyribonucleotide at the nick'''<br /> | ||
| - | == | + | ==Structure of T4 RNA Ligase 2 with Nicked 5'-Adenylated nucleic acid duplex containing a 3'-deoxyribonucleotide at the nick== |
| - | T4 RNA ligase 2 (Rnl2) and kinetoplastid RNA editing ligases exemplify a | + | <StructureSection load='2hvr' size='340' side='right'caption='[[2hvr]], [[Resolution|resolution]] 2.45Å' scene=''> |
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[2hvr]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_virus_T4 Escherichia virus T4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HVR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HVR FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.45Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BTB:2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>BTB</scene>, <scene name='pdbligand=O2C:3-DEOXY-CYTIDINE-5-MONOPHOSPHATE'>O2C</scene>, <scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</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=2hvr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hvr OCA], [https://pdbe.org/2hvr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hvr RCSB], [https://www.ebi.ac.uk/pdbsum/2hvr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hvr ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RLIG2_BPT4 RLIG2_BPT4] Catalyzes intramolecular and intermolecular RNA strand joining (in vitro). May play a role in the repair of nicked RNA molecules.<ref>PMID:12228725</ref> <ref>PMID:17018278</ref> | ||
| + | == Evolutionary Conservation == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hv/2hvr_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </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/main_output.php?pdb_ID=2hvr ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | T4 RNA ligase 2 (Rnl2) and kinetoplastid RNA editing ligases exemplify a family of RNA repair enzymes that seal 3'OH/5'PO(4) nicks in duplex RNAs via ligase adenylylation (step 1), AMP transfer to the nick 5'PO(4) (step 2), and attack by the nick 3'OH on the 5'-adenylylated strand to form a phosphodiester (step 3). Crystal structures are reported for Rnl2 at discrete steps along this pathway: the covalent Rnl2-AMP intermediate; Rnl2 bound to an adenylylated nicked duplex, captured immediately following step 2; and Rnl2 at an adenylylated nick in a state poised for step 3. These structures illuminate the stereochemistry of nucleotidyl transfer and reveal how remodeling of active-site contacts and conformational changes propel the ligation reaction forward. Mutational analysis and comparison of nick-bound structures of Rnl2 and human DNA ligase I highlight common and divergent themes of substrate recognition that can explain their specialization for RNA versus DNA repair. | ||
| - | + | RNA ligase structures reveal the basis for RNA specificity and conformational changes that drive ligation forward.,Nandakumar J, Shuman S, Lima CD Cell. 2006 Oct 6;127(1):71-84. PMID:17018278<ref>PMID:17018278</ref> | |
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| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 2hvr" style="background-color:#fffaf0;"></div> | |
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| - | + | ==See Also== | |
| + | *[[RNA ligase|RNA ligase]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Escherichia virus T4]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Lima CD]] | ||
| + | [[Category: Nandakumar J]] | ||
Current revision
Structure of T4 RNA Ligase 2 with Nicked 5'-Adenylated nucleic acid duplex containing a 3'-deoxyribonucleotide at the nick
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