6a1a

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<StructureSection load='6a1a' size='340' side='right'caption='[[6a1a]], [[Resolution|resolution]] 1.35&Aring;' scene=''>
<StructureSection load='6a1a' size='340' side='right'caption='[[6a1a]], [[Resolution|resolution]] 1.35&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[6a1a]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6A1A OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6A1A FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6a1a]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Amycolatopsis_orientalis Amycolatopsis orientalis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6A1A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6A1A FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene>, <scene name='pdbligand=HHH:(2S)-HYDROXY(4-HYDROXYPHENYL)ETHANOIC+ACID'>HHH</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]] 1.35&#8491;</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/4-hydroxymandelate_oxidase 4-hydroxymandelate oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.3.46 1.1.3.46] </span></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>, <scene name='pdbligand=HHH:(2S)-HYDROXY(4-HYDROXYPHENYL)ETHANOIC+ACID'>HHH</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6a1a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a1a OCA], [http://pdbe.org/6a1a PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6a1a RCSB], [http://www.ebi.ac.uk/pdbsum/6a1a PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6a1a ProSAT]</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=6a1a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a1a OCA], [https://pdbe.org/6a1a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6a1a RCSB], [https://www.ebi.ac.uk/pdbsum/6a1a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6a1a ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/HMO_AMYOR HMO_AMYOR]] Catalyzes the oxidation of p-hydroxymandelate to p-hydroxybenzoylformate in the biosynthesis of L-(4-hydroxyphenyl)glycine and L-(3,5-dihydroxyphenyl)glycine, 2 non-proteinogenic amino acids occurring in the vancomycin group of antibiotics.<ref>PMID:11137816</ref> <ref>PMID:12240298</ref>
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[https://www.uniprot.org/uniprot/HMO_AMYOR HMO_AMYOR] Catalyzes the oxidation of p-hydroxymandelate to p-hydroxybenzoylformate in the biosynthesis of L-(4-hydroxyphenyl)glycine and L-(3,5-dihydroxyphenyl)glycine, 2 non-proteinogenic amino acids occurring in the vancomycin group of antibiotics.<ref>PMID:11137816</ref> <ref>PMID:12240298</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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p-Hydroxymandelate oxidase (Hmo) is a flavin mononucleotide (FMN)-dependent enzyme that oxidizes mandelate to benzoylformate. How the FMN-dependent oxidation is executed by Hmo remains unclear at the molecular level. A continuum of snapshots from crystal structures of Hmo and its mutants in complex with physiological/nonphysiological substrates, products and inhibitors provides a rationale for its substrate enantioselectivity/promiscuity, its active-site geometry/reactivity and its direct hydride-transfer mechanism. A single mutant, Y128F, that extends the two-electron oxidation reaction to a four-electron oxidative decarboxylation reaction was unexpectedly observed. Biochemical and structural approaches, including biochemistry, kinetics, stable isotope labeling and X-ray crystallography, were exploited to reach these conclusions and provide additional insights.
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Biochemical and structural explorations of alpha-hydroxyacid oxidases reveal a four-electron oxidative decarboxylation reaction.,Yeh HW, Lin KH, Lyu SY, Li YS, Huang CM, Wang YL, Shih HW, Hsu NS, Wu CJ, Li TL Acta Crystallogr D Struct Biol. 2019 Aug 1;75(Pt 8):733-742. doi:, 10.1107/S2059798319009574. Epub 2019 Jul 30. PMID:31373572<ref>PMID:31373572</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 6a1a" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: 4-hydroxymandelate oxidase]]
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[[Category: Amycolatopsis orientalis]]
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Li, T L]]
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[[Category: Li TL]]
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[[Category: Lin, K H]]
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[[Category: Lin KH]]
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[[Category: Flavoprotein]]
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[[Category: Fmn-dependent oxidase]]
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Current revision

Mandelate oxidase mutant-Y128F with 4-hydroxymandelic acid

PDB ID 6a1a

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OCA

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