3b4a

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[[Image:3b4a.png|left|200px]]
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==T. tengcongensis glmS ribozyme with G40A mutation, bound to glucosamine-6-phosphate==
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<StructureSection load='3b4a' size='340' side='right' caption='[[3b4a]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3b4a]] is a 2 chain structure with sequence from [http://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=3B4A OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3B4A FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GLP:GLUCOSAMINE+6-PHOSPHATE'>GLP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=A23:ADENOSINE-5-PHOSPHATE-2,3-CYCLIC+PHOSPHATE'>A23</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2z74|2z74]], [[2z75|2z75]], [[2ho7|2ho7]], [[3b4b|3b4b]], [[3b4c|3b4c]]</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3b4a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3b4a OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3b4a RCSB], [http://www.ebi.ac.uk/pdbsum/3b4a PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The glmS ribozyme is a catalytic riboswitch that is activated for endonucleolytic cleavage by the coenzyme glucosamine-6-phosphate. Using kinetic assays and X-ray crystallography, we identify an active-site mutation of a conserved guanine that abolishes catalysis without perturbing coenzyme binding. Our results provide evidence that coenzyme function requires a specific nucleobase to interact with the nucleophile of the cleavage reaction.
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{{STRUCTURE_3b4a| PDB=3b4a | SCENE= }}
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Essential role of an active-site guanine in glmS ribozyme catalysis.,Klein DJ, Been MD, Ferre-D'Amare AR J Am Chem Soc. 2007 Dec 5;129(48):14858-9. Epub 2007 Nov 9. PMID:17990888<ref>PMID:17990888</ref>
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===T. tengcongensis glmS ribozyme with G40A mutation, bound to glucosamine-6-phosphate===
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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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{{ABSTRACT_PUBMED_17990888}}
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==About this Structure==
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[[3b4a]] is a 2 chain structure with sequence from [http://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=3B4A OCA].
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==See Also==
==See Also==
*[[Ribozyme|Ribozyme]]
*[[Ribozyme|Ribozyme]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:017990888</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Caldanaerobacter subterraneus subsp. tengcongensis]]
[[Category: Caldanaerobacter subterraneus subsp. tengcongensis]]
[[Category: Amare, A R.Ferre-D.]]
[[Category: Amare, A R.Ferre-D.]]

Revision as of 09:27, 5 November 2014

T. tengcongensis glmS ribozyme with G40A mutation, bound to glucosamine-6-phosphate

3b4a, resolution 2.70Å

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