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2ho6

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[[Image:2ho6.gif|left|200px]]
 
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{{Structure
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==Post-cleavage state of the Thermoanaerobacter tengcongensis glmS ribozyme==
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|PDB= 2ho6 |SIZE=350|CAPTION= <scene name='initialview01'>2ho6</scene>, resolution 2.80&Aring;
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<StructureSection load='2ho6' size='340' side='right'caption='[[2ho6]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC ACID'>MES</scene>
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<table><tr><td colspan='2'>[[2ho6]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Caldanaerobacter_subterraneus_subsp._tengcongensis Caldanaerobacter subterraneus subsp. tengcongensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HO6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HO6 FirstGlance]. <br>
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|ACTIVITY=
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.8&#8491;</td></tr>
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|GENE=
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A23:ADENOSINE-5-PHOSPHATE-2,3-CYCLIC+PHOSPHATE'>A23</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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}}
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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=2ho6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ho6 OCA], [https://pdbe.org/2ho6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ho6 RCSB], [https://www.ebi.ac.uk/pdbsum/2ho6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ho6 ProSAT]</span></td></tr>
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</table>
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'''Post-cleavage state of the Thermoanaerobacter tengcongensis glmS ribozyme'''
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==See Also==
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*[[Ribozyme 3D structures|Ribozyme 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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The glmS ribozyme is the only natural catalytic RNA known to require a small-molecule activator for catalysis. This catalytic RNA functions as a riboswitch, with activator-dependent RNA cleavage regulating glmS messenger RNA expression. We report crystal structures of the glmS ribozyme in precleavage states that are unliganded or bound to the competitive inhibitor glucose-6-phosphate and in the postcleavage state. All structures superimpose closely, revealing a remarkably rigid RNA that contains a preformed active and coenzyme-binding site. Unlike other riboswitches, the glmS ribozyme binds its activator in an open, solvent-accessible pocket. Our structures suggest that the amine group of the glmS ribozyme-bound coenzyme performs general acid-base and electrostatic catalysis.
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[[Category: Caldanaerobacter subterraneus subsp. tengcongensis]]
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[[Category: Large Structures]]
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==About this Structure==
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[[Category: Ferre-D'Amare AR]]
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2HO6 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HO6 OCA].
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[[Category: Klein DJ]]
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==Reference==
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Structural basis of glmS ribozyme activation by glucosamine-6-phosphate., Klein DJ, Ferre-D'Amare AR, Science. 2006 Sep 22;313(5794):1752-6. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16990543 16990543]
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[[Category: Protein complex]]
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[[Category: Amare, A R.Ferre-D.]]
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[[Category: Klein, D J.]]
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[[Category: MES]]
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[[Category: MG]]
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[[Category: rna; ribozyme; pseudoknot; helix]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 17:19:25 2008''
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Current revision

Post-cleavage state of the Thermoanaerobacter tengcongensis glmS ribozyme

PDB ID 2ho6

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