1qhk

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[[Image:1qhk.png|left|200px]]
 
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{{STRUCTURE_1qhk| PDB=1qhk | SCENE= }}
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==N-TERMINAL DOMAIN OF SACCHAROMYCES CEREVISIAE RNASE HI REVEALS A FOLD WITH A RESEMBLANCE TO THE N-TERMINAL DOMAIN OF RIBOSOMAL PROTEIN L9==
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<StructureSection load='1qhk' size='340' side='right'caption='[[1qhk]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1qhk]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QHK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QHK FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1qhk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qhk OCA], [https://pdbe.org/1qhk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qhk RCSB], [https://www.ebi.ac.uk/pdbsum/1qhk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qhk ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RNH1_YEAST RNH1_YEAST] Endonuclease that specifically degrades the RNA of RNA-DNA hybrids.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qh/1qhk_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1qhk ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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In addition to the conserved and well-defined RNase H domain, eukaryotic RNases HI possess either one or two copies of a small N-terminal domain. The solution structure of one of the N-terminal domains from Saccharomyces cerevisiae RNase HI, determined using NMR spectroscopy, is presented. The 46 residue motif comprises a three-stranded antiparallel beta-sheet and two short alpha-helices which pack onto opposite faces of the beta-sheet. Conserved residues involved in packing the alpha-helices onto the beta-sheet form the hydrophobic core of the domain. Three highly conserved and solvent exposed residues are implicated in RNA binding, W22, K38 and K39. The beta-beta-alpha-beta-alpha topology of the domain differs from the structures of known RNA binding domains such as the double-stranded RNA binding domain (dsRBD), the hnRNP K homology (KH) domain and the RNP motif. However, structural similarities exist between this domain and the N-terminal domain of ribosomal protein L9 which binds to 23 S ribosomal RNA.
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===N-TERMINAL DOMAIN OF SACCHAROMYCES CEREVISIAE RNASE HI REVEALS A FOLD WITH A RESEMBLANCE TO THE N-TERMINAL DOMAIN OF RIBOSOMAL PROTEIN L9===
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NMR structure of the N-terminal domain of Saccharomyces cerevisiae RNase HI reveals a fold with a strong resemblance to the N-terminal domain of ribosomal protein L9.,Evans SP, Bycroft M J Mol Biol. 1999 Aug 20;291(3):661-9. PMID:10448044<ref>PMID:10448044</ref>
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{{ABSTRACT_PUBMED_10448044}}
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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==About this Structure==
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<div class="pdbe-citations 1qhk" style="background-color:#fffaf0;"></div>
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[[1qhk]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QHK OCA].
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==See Also==
==See Also==
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*[[Ribonuclease|Ribonuclease]]
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*[[Ribonuclease 3D structures|Ribonuclease 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:010448044</ref><references group="xtra"/>
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__TOC__
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[[Category: Ribonuclease H]]
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
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[[Category: Bycroft, M.]]
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[[Category: Bycroft M]]
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[[Category: Evans, S P.]]
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[[Category: Evans SP]]
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[[Category: Hydrolase]]
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[[Category: Ribonuclease hi n-terminal domain]]
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Current revision

N-TERMINAL DOMAIN OF SACCHAROMYCES CEREVISIAE RNASE HI REVEALS A FOLD WITH A RESEMBLANCE TO THE N-TERMINAL DOMAIN OF RIBOSOMAL PROTEIN L9

PDB ID 1qhk

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