3t7v

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<StructureSection load='3t7v' size='340' side='right'caption='[[3t7v]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
<StructureSection load='3t7v' size='340' side='right'caption='[[3t7v]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3t7v]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Metbf Metbf]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3T7V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3T7V FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3t7v]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanosarcina_barkeri_str._Fusaro Methanosarcina barkeri str. Fusaro]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3T7V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3T7V FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MD0:5-AMINO-D-ISOLEUCINE'>MD0</scene>, <scene name='pdbligand=SAM:S-ADENOSYLMETHIONINE'>SAM</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>
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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]] 1.5&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1r30|1r30]], [[3ciw|3ciw]]</div></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=MD0:5-AMINO-D-ISOLEUCINE'>MD0</scene>, <scene name='pdbligand=SAM:S-ADENOSYLMETHIONINE'>SAM</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Mbar_A0838 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=269797 METBF])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Biotin_synthase Biotin synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.8.1.6 2.8.1.6] </span></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=3t7v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3t7v OCA], [https://pdbe.org/3t7v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3t7v RCSB], [https://www.ebi.ac.uk/pdbsum/3t7v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3t7v ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3t7v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3t7v OCA], [https://pdbe.org/3t7v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3t7v RCSB], [https://www.ebi.ac.uk/pdbsum/3t7v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3t7v ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[https://www.uniprot.org/uniprot/PYLB_METBF PYLB_METBF]] Catalyzes the isomerization of L-lysine to (2R,3R)-3-methylornithine via a radical-based mechanism, a step in the biosynthesis pathway of pyrrolysine.<ref>PMID:21455182</ref> <ref>PMID:22095926</ref>
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[https://www.uniprot.org/uniprot/PYLB_METBF PYLB_METBF] Catalyzes the isomerization of L-lysine to (2R,3R)-3-methylornithine via a radical-based mechanism, a step in the biosynthesis pathway of pyrrolysine.<ref>PMID:21455182</ref> <ref>PMID:22095926</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Made by the barrel load: The biosynthetic pathway of the recently discovered 22nd amino acid, pyrrolysine, starts with an isomerization of lysine to methylornithine, catalyzed by PylB. The X-ray crystal structure of PylB is determined and shows it has a TIM barrel fold. The sealed central cavity contains a [4Fe-4S] cluster, S-adenosylmethionine (SAM), and methylornithine, whose 2R,3R configuration could be confirmed. The data suggest a fragmentation-recombination mechanism via a glycyl radical intermediate.
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Crystal Structure of Methylornithine Synthase (PylB): Insights into the Pyrrolysine Biosynthesis.,Quitterer F, List A, Eisenreich W, Bacher A, Groll M Angew Chem Int Ed Engl. 2011 Nov 16. doi: 10.1002/anie.201106765. PMID:22095926<ref>PMID:22095926</ref>
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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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<div class="pdbe-citations 3t7v" style="background-color:#fffaf0;"></div>
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== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Biotin synthase]]
 
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Metbf]]
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[[Category: Methanosarcina barkeri str. Fusaro]]
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[[Category: Bacher, A]]
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[[Category: Bacher A]]
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[[Category: Eisenreich, W]]
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[[Category: Eisenreich W]]
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[[Category: Groll, M]]
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[[Category: Groll M]]
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[[Category: List, A]]
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[[Category: List A]]
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[[Category: Quitterer, F]]
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[[Category: Quitterer F]]
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[[Category: 3-methylornithine]]
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[[Category: Lysine]]
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[[Category: Mutase]]
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[[Category: Sam]]
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[[Category: Tim-barrel fold]]
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[[Category: Transferase]]
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Current revision

Crystal structure of methylornithine synthase (PylB)

PDB ID 3t7v

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Proteopedia Page Contributors and Editors (what is this?)

OCA

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