1r30

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[[Image:1r30.gif|left|200px]]
 
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==The Crystal Structure of Biotin Synthase, an S-Adenosylmethionine-Dependent Radical Enzyme==
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The line below this paragraph, containing "STRUCTURE_1r30", creates the "Structure Box" on the page.
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<StructureSection load='1r30' size='340' side='right'caption='[[1r30]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1r30]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R30 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1R30 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">X-ray diffraction, [[Resolution|Resolution]] 3.4&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DTB:6-(5-METHYL-2-OXO-IMIDAZOLIDIN-4-YL)-HEXANOIC+ACID'>DTB</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=SAM:S-ADENOSYLMETHIONINE'>SAM</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=TRS:2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>TRS</scene></td></tr>
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{{STRUCTURE_1r30| PDB=1r30 | SCENE= }}
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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=1r30 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r30 OCA], [https://pdbe.org/1r30 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1r30 RCSB], [https://www.ebi.ac.uk/pdbsum/1r30 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1r30 ProSAT]</span></td></tr>
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</table>
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'''The Crystal Structure of Biotin Synthase, an S-Adenosylmethionine-Dependent Radical Enzyme'''
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== Function ==
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[https://www.uniprot.org/uniprot/BIOB_ECOLI BIOB_ECOLI] Catalyzes the conversion of dethiobiotin (DTB) to biotin by the insertion of a sulfur atom into dethiobiotin via a radical-based mechanism.<ref>PMID:8142361</ref>
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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The crystal structure of biotin synthase from Escherichia coli in complex with S-adenosyl-L-methionine and dethiobiotin has been determined to 3.4 angstrom resolution. This structure addresses how "AdoMet radical" or "radical SAM" enzymes use Fe4S4 clusters and S-adenosyl-L-methionine to generate organic radicals. Biotin synthase catalyzes the radical-mediated insertion of sulfur into dethiobiotin to form biotin. The structure places the substrates between the Fe4S4 cluster, essential for radical generation, and the Fe2S2 cluster, postulated to be the source of sulfur, with both clusters in unprecedented coordination environments.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/r3/1r30_consurf.spt"</scriptWhenChecked>
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1R30 is a [[Single protein]] structure of 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=1R30 OCA].
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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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==Reference==
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</jmolCheckbox>
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Crystal structure of biotin synthase, an S-adenosylmethionine-dependent radical enzyme., Berkovitch F, Nicolet Y, Wan JT, Jarrett JT, Drennan CL, Science. 2004 Jan 2;303(5654):76-9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14704425 14704425]
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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=1r30 ConSurf].
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[[Category: Biotin synthase]]
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<div style="clear:both"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Berkovitch, F.]]
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[[Category: Berkovitch F]]
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[[Category: Drennan, C L.]]
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[[Category: Drennan CL]]
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[[Category: Jarrett, J T.]]
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[[Category: Jarrett JT]]
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[[Category: Nicolet, Y.]]
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[[Category: Nicolet Y]]
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[[Category: Wan, J T.]]
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[[Category: Wan JT]]
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[[Category: Fes cluster]]
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[[Category: Sam radical protein]]
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[[Category: Tim barrel]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 07:00:50 2008''
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Current revision

The Crystal Structure of Biotin Synthase, an S-Adenosylmethionine-Dependent Radical Enzyme

PDB ID 1r30

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