5fw4
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | + | ==Structure of Thermobifida fusca DyP-type Peroxidase and Activity towards Kraft Lignin and Lignin Model Compounds== | |
| + | <StructureSection load='5fw4' size='340' side='right' caption='[[5fw4]], [[Resolution|resolution]] 1.80Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5fw4]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5FW4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5FW4 FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=OXY:OXYGEN+MOLECULE'>OXY</scene></td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Dye_decolorizing_peroxidase Dye decolorizing peroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.19 1.11.1.19] </span></td></tr> | ||
| + | <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=5fw4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5fw4 OCA], [http://pdbe.org/5fw4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5fw4 RCSB], [http://www.ebi.ac.uk/pdbsum/5fw4 PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/DYP_THEFY DYP_THEFY]] Peroxidase that is able to convert a large number of compounds, but its physiological substrate is not known. Shows high reactivity towards anthraquinone dyes (e.g. Reactive Blue 19) and a modest activity towards standard peroxidase substrates (such as guaiacol and 2,6-dimethoxyphenol) and azo dyes (e.g. Reactive Blue 5). Is also able to oxidize aromatic sulfides enantioselectively, resulting in the corresponding (R)-sulfoxides, but with a poor efficiency. Does not display catalase activity.<ref>PMID:19967355</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | A Dyp-type peroxidase enzyme from thermophilic cellulose degrader Thermobifida fusca (TfuDyP) was investigated for catalytic ability towards lignin oxidation. TfuDyP was characterised kinetically against a range of phenolic substrates, and a compound I reaction intermediate was observed via pre-steady state kinetic analysis at lambdamax 404 nm. TfuDyP showed reactivity towards Kraft lignin, and was found to oxidise a beta-aryl ether lignin model compound, forming an oxidised dimer. A crystal structure of TfuDyP was determined, to 1.8 A resolution, which was found to contain a diatomic oxygen ligand bound to the heme centre, positioned close to active site residues Asp-203 and Arg-315. The structure contains two channels providing access to the heme cofactor for organic substrates and hydrogen peroxide. Site-directed mutant D203A showed no activity towards phenolic substrates, but reduced activity towards ABTS, while mutant R315Q showed no activity towards phenolic substrates, nor ABTS. | ||
| - | + | Structure of Thermobifida fusca DyP-type peroxidase and activity towards Kraft lignin and lignin model compounds.,Rahmanpour R, Rea D, Jamshidi S, Fulop V, Bugg TD Arch Biochem Biophys. 2016 Mar 15;594:54-60. doi: 10.1016/j.abb.2016.02.019. Epub, 2016 Feb 18. PMID:26901432<ref>PMID:26901432</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | [[Category: | + | <div class="pdbe-citations 5fw4" style="background-color:#fffaf0;"></div> |
| - | [[Category: Bugg, T | + | == References == |
| - | + | <references/> | |
| - | + | __TOC__ | |
| + | </StructureSection> | ||
| + | [[Category: Dye decolorizing peroxidase]] | ||
| + | [[Category: Bugg, T D.H]] | ||
[[Category: Fulop, V]] | [[Category: Fulop, V]] | ||
| + | [[Category: Jamshidi, S]] | ||
| + | [[Category: Rahmanpour, R]] | ||
| + | [[Category: Rea, D]] | ||
| + | [[Category: Decolorizing peroxidase]] | ||
| + | [[Category: Dyp]] | ||
| + | [[Category: Lignin oxidation]] | ||
| + | [[Category: Oxidoreductase]] | ||
Revision as of 04:09, 12 May 2016
Structure of Thermobifida fusca DyP-type Peroxidase and Activity towards Kraft Lignin and Lignin Model Compounds
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