1r4u

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[[Image:1r4u.gif|left|200px]]
 
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==URATE OXIDASE FROM ASPERGILLUS FLAVUS COMPLEXED WITH ITS INHIBITOR OXONIC ACID==
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The line below this paragraph, containing "STRUCTURE_1r4u", creates the "Structure Box" on the page.
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<StructureSection load='1r4u' size='340' side='right'caption='[[1r4u]], [[Resolution|resolution]] 1.65&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'>[[1r4u]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Aspergillus_flavus Aspergillus flavus]. The September 2009 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Xanthine Oxidoreductase'' by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2009_9 10.2210/rcsb_pdb/mom_2009_9]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R4U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1R4U FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 1.65&#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=OXC:OXONIC+ACID'>OXC</scene>, <scene name='pdbligand=SAC:N-ACETYL-SERINE'>SAC</scene></td></tr>
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{{STRUCTURE_1r4u| PDB=1r4u | 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=1r4u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r4u OCA], [https://pdbe.org/1r4u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1r4u RCSB], [https://www.ebi.ac.uk/pdbsum/1r4u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1r4u ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/URIC_ASPFL URIC_ASPFL] Catalyzes the oxidation of uric acid to 5-hydroxyisourate, which is further processed to form (S)-allantoin.
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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/r4/1r4u_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/main_output.php?pdb_ID=1r4u 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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High-resolution X-ray structures of the complexes of Aspergillus flavus urate oxidase (Uox) with three inhibitors, 8-azaxanthin (AZA), 9-methyl uric acid (MUA) and oxonic acid (OXC), were determined in an orthorhombic space group (I222). In addition, the ligand-free enzyme was also crystallized in a monoclinic form (P2(1)) and its structure determined. Higher accuracy in the three new enzyme-inhibitor complex structures (Uox-AZA, Uox-MUA and Uox-OXC) with respect to the previously determined structure of Uox-AZA (PDB code 1uox) leads to a reversed position of the inhibitor in the active site of the enzyme. The corrected anchoring of the substrate (uric acid) allows an improvement in the understanding of the enzymatic mechanism of urate oxidase.
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'''URATE OXIDASE FROM ASPERGILLUS FLAVUS COMPLEXED WITH ITS INHIBITOR OXONIC ACID'''
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Complexed and ligand-free high-resolution structures of urate oxidase (Uox) from Aspergillus flavus: a reassignment of the active-site binding mode.,Retailleau P, Colloc'h N, Vivares D, Bonnete F, Castro B, El-Hajji M, Mornon JP, Monard G, Prange T Acta Crystallogr D Biol Crystallogr. 2004 Mar;60(Pt 3):453-62. Epub 2004, Feb 25. PMID:14993669<ref>PMID:14993669</ref>
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==Overview==
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High-resolution X-ray structures of the complexes of Aspergillus flavus urate oxidase (Uox) with three inhibitors, 8-azaxanthin (AZA), 9-methyl uric acid (MUA) and oxonic acid (OXC), were determined in an orthorhombic space group (I222). In addition, the ligand-free enzyme was also crystallized in a monoclinic form (P2(1)) and its structure determined. Higher accuracy in the three new enzyme-inhibitor complex structures (Uox-AZA, Uox-MUA and Uox-OXC) with respect to the previously determined structure of Uox-AZA (PDB code 1uox) leads to a reversed position of the inhibitor in the active site of the enzyme. The corrected anchoring of the substrate (uric acid) allows an improvement in the understanding of the enzymatic mechanism of urate oxidase.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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1R4U is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Aspergillus_flavus Aspergillus flavus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R4U OCA].
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</div>
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<div class="pdbe-citations 1r4u" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Complexed and ligand-free high-resolution structures of urate oxidase (Uox) from Aspergillus flavus: a reassignment of the active-site binding mode., Retailleau P, Colloc'h N, Vivares D, Bonnete F, Castro B, El-Hajji M, Mornon JP, Monard G, Prange T, Acta Crystallogr D Biol Crystallogr. 2004 Mar;60(Pt 3):453-62. Epub 2004, Feb 25. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14993669 14993669]
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*[[Urate oxidase 3D structures|Urate oxidase 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Aspergillus flavus]]
[[Category: Aspergillus flavus]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Urate oxidase]]
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[[Category: RCSB PDB Molecule of the Month]]
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[[Category: H, N Colloc.]]
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[[Category: Xanthine Oxidoreductase]]
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[[Category: Prange, T.]]
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[[Category: Colloc'h N]]
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[[Category: Retailleau, P.]]
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[[Category: Prange T]]
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[[Category: Dimeric barrel]]
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[[Category: Retailleau P]]
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[[Category: Oxidoreductase]]
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[[Category: Tunnel-shaped protein]]
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[[Category: Uric acid degradation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 07:04:35 2008''
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Current revision

URATE OXIDASE FROM ASPERGILLUS FLAVUS COMPLEXED WITH ITS INHIBITOR OXONIC ACID

PDB ID 1r4u

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