3cb8

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[[Image:3cb8.png|left|200px]]
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==4Fe-4S-Pyruvate formate-lyase activating enzyme in complex with AdoMet and a peptide substrate==
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<StructureSection load='3cb8' size='340' side='right' caption='[[3cb8]], [[Resolution|resolution]] 2.77&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3cb8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CB8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3CB8 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=SAM:S-ADENOSYLMETHIONINE'>SAM</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3c8f|3c8f]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">pflA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/[Formate-C-acetyltransferase]-activating_enzyme [Formate-C-acetyltransferase]-activating enzyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.97.1.4 1.97.1.4] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3cb8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cb8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3cb8 RCSB], [http://www.ebi.ac.uk/pdbsum/3cb8 PDBsum]</span></td></tr>
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<table>
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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/cb/3cb8_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/chain_selection.php?pdb_ID=2ata 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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Pyruvate formate-lyase activating enzyme generates a stable and catalytically essential glycyl radical on G(734) of pyruvate formate-lyase via the direct, stereospecific abstraction of a hydrogen atom from pyruvate formate-lyase. The activase performs this remarkable feat by using an iron-sulfur cluster and S-adenosylmethionine (AdoMet), thus placing it among the AdoMet radical superfamily of enzymes. We report here structures of the substrate-free and substrate-bound forms of pyruvate formate-lyase-activating enzyme, the first structures of an AdoMet radical activase. To obtain the substrate-bound structure, we have used a peptide substrate, the 7-mer RVSGYAV, which contains the sequence surrounding G(734). Our structures provide fundamental insights into the interactions between the activase and the G(734) loop of pyruvate formate-lyase and provide a structural basis for direct and stereospecific H atom abstraction from the buried G(734) of pyruvate formate-lyase.
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<!--
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Structural basis for glycyl radical formation by pyruvate formate-lyase activating enzyme.,Vey JL, Yang J, Li M, Broderick WE, Broderick JB, Drennan CL Proc Natl Acad Sci U S A. 2008 Oct 21;105(42):16137-41. Epub 2008 Oct 13. PMID:18852451<ref>PMID:18852451</ref>
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The line below this paragraph, containing "STRUCTURE_3cb8", creates the "Structure Box" on the page.
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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or leave the SCENE parameter empty for the default display.
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-->
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{{STRUCTURE_3cb8| PDB=3cb8 | SCENE= }}
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===4Fe-4S-Pyruvate formate-lyase activating enzyme in complex with AdoMet and a peptide substrate===
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<!--
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_18852451}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 18852451 is the PubMed ID number.
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</StructureSection>
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-->
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{{ABSTRACT_PUBMED_18852451}}
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==About this Structure==
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[[3cb8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CB8 OCA].
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==Reference==
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<ref group="xtra">PMID:018852451</ref><references group="xtra"/>
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Drennan, C L.]]
[[Category: Drennan, C L.]]

Revision as of 09:53, 21 May 2014

4Fe-4S-Pyruvate formate-lyase activating enzyme in complex with AdoMet and a peptide substrate

3cb8, resolution 2.77Å

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