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1oya

From Proteopedia

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[[Image:1oya.jpg|left|200px]]<br /><applet load="1oya" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1oya, resolution 2.0&Aring;" />
 
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'''OLD YELLOW ENZYME AT 2 ANGSTROMS RESOLUTION: OVERALL STRUCTURE, LIGAND BINDING AND COMPARISON WITH RELATED FLAVOPROTEINS'''<br />
 
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==Overview==
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==OLD YELLOW ENZYME AT 2 ANGSTROMS RESOLUTION: OVERALL STRUCTURE, LIGAND BINDING AND COMPARISON WITH RELATED FLAVOPROTEINS==
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BACKGROUND: Old yellow enzyme (OYE) was the first flavoenzyme purified, but its function is still unknown. Nevertheless, the NADPH oxidase activity, the flavin mononucleotide environment and the ligand-binding properties of OYE have been extensively studied by biochemical and spectroscopic approaches. Full interpretation of these data requires structural information. RESULTS: The crystal structures of oxidized and reduced OYE at 2 A resolution reveal an alpha/beta-barrel topology clearly related to trimethylamine dehydrogenase. Complexes of OYE with p-hydroxybenzaldehyde, beta-estradiol, and an NADPH analog show all three binding at a common site, stacked on the flavin. The putative NADPH binding mode is novel as it involves primary recognition of the nicotinamide mononucleotide portion. CONCLUSIONS: This work shows that the striking spectral changes seen upon phenol binding are due to close physical association of the flavin and phenolate. It also identifies the structural class of OYE and suggests that if NADPH is its true substrate, then OYE has adopted NADPH dependence during evolution.
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<StructureSection load='1oya' size='340' side='right'caption='[[1oya]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1oya]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_pastorianus Saccharomyces pastorianus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OYA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OYA 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]] 2&#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=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene></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=1oya FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oya OCA], [https://pdbe.org/1oya PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1oya RCSB], [https://www.ebi.ac.uk/pdbsum/1oya PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1oya ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/OYE1_SACPS OYE1_SACPS] Oxidizes beta-NADH, beta-NADPH, and alpha-NADPH.
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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/oy/1oya_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=1oya ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1OYA is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_pastorianus Saccharomyces pastorianus] with <scene name='pdbligand=FMN:'>FMN</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/NADPH_dehydrogenase NADPH dehydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.6.99.1 1.6.99.1] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OYA OCA].
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*[[NADPH dehydrogenase|NADPH dehydrogenase]]
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__TOC__
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==Reference==
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</StructureSection>
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Old yellow enzyme at 2 A resolution: overall structure, ligand binding, and comparison with related flavoproteins., Fox KM, Karplus PA, Structure. 1994 Nov 15;2(11):1089-105. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=7881908 7881908]
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[[Category: Large Structures]]
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[[Category: NADPH dehydrogenase]]
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[[Category: Saccharomyces pastorianus]]
[[Category: Saccharomyces pastorianus]]
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[[Category: Single protein]]
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[[Category: Fox KM]]
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[[Category: Fox, K M.]]
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[[Category: Karplus PA]]
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[[Category: Karplus, P A.]]
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[[Category: FMN]]
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[[Category: oxidoreductase (flavoprotein)]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:23:01 2008''
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Current revision

OLD YELLOW ENZYME AT 2 ANGSTROMS RESOLUTION: OVERALL STRUCTURE, LIGAND BINDING AND COMPARISON WITH RELATED FLAVOPROTEINS

PDB ID 1oya

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