View source for 5wan


==Crystal Structure of a flavoenzyme RutA in the pyrimidine catabolic pathway==
<StructureSection load='5wan' size='340' side='right'caption='[[5wan]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5wan]] is a 1 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=5WAN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5WAN FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.798&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=URA:URACIL'>URA</scene></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=5wan FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5wan OCA], [https://pdbe.org/5wan PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5wan RCSB], [https://www.ebi.ac.uk/pdbsum/5wan PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5wan ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/RUTA_ECOLI RUTA_ECOLI] Catalyzes the pyrimidine ring opening between N-3 and C-4 by an unusual flavin hydroperoxide-catalyzed mechanism to yield ureidoacrylate peracid. It cleaves pyrmidine rings directly by adding oxygen atoms, making a toxic ureidoacrylate peracid product which can be spontaneously reduced to ureidoacrylate. Requires the flavin reductase RutF to regenerate FMN in vivo. RutF can be substituted by Fre in vitro.<ref>PMID:16540542</ref> <ref>PMID:20400551</ref> 
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== Publication Abstract from PubMed ==
A new pyrimidine catabolic pathway (the Rut pathway) was recently discovered in Escherichia coli K12. In this pathway, uracil is converted to 3-hydroxypropionate, ammonia, and carbon dioxide. The seven-gene Rut operon is required for this conversion. Here we demonstrate that the flavoenzyme RutA catalyzes the initial uracil ring-opening reaction to give 3-ureidoacrylate. This reaction, while formally a hydrolysis reaction, proceeds by an oxidative mechanism initiated by the addition of a flavin hydroperoxide to the C4 carbonyl. While peroxide-catalyzed amide hydrolysis has chemical precedent, we are not aware of a prior example of analogous chemistry catalyzed by flavin hydroperoxides. This study further illustrates the extraordinary catalytic versatility of the flavin cofactor.

Catalysis of a flavoenzyme-mediated amide hydrolysis.,Mukherjee T, Zhang Y, Abdelwahed S, Ealick SE, Begley TP J Am Chem Soc. 2010 Apr 28;132(16):5550-1. doi: 10.1021/ja9107676. PMID:20369853<ref>PMID:20369853</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5wan" style="background-color:#fffaf0;"></div>

==See Also==
*[[Monooxygenase 3D structures|Monooxygenase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Large Structures]]
[[Category: Abdelwahed S]]
[[Category: Begley TP]]
[[Category: Ealick SE]]
[[Category: Mukherjee T]]
[[Category: Zhang Y]]