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| | <StructureSection load='5ikd' size='340' side='right'caption='[[5ikd]], [[Resolution|resolution]] 1.11Å' scene=''> | | <StructureSection load='5ikd' size='340' side='right'caption='[[5ikd]], [[Resolution|resolution]] 1.11Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5ikd]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Auraj Auraj]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IKD OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5IKD FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5ikd]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Auricularia_auricula-judae Auricularia auricula-judae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IKD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5IKD FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.109Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4w7j|4w7j]]</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dyp1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=29892 AURAJ])</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=5ikd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ikd OCA], [https://pdbe.org/5ikd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ikd RCSB], [https://www.ebi.ac.uk/pdbsum/5ikd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ikd ProSAT]</span></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://proteopedia.org/fgij/fg.htm?mol=5ikd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ikd OCA], [http://pdbe.org/5ikd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ikd RCSB], [http://www.ebi.ac.uk/pdbsum/5ikd PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ikd ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| - | <div style="background-color:#fffaf0;">
| + | == Function == |
| - | == Publication Abstract from PubMed == | + | [https://www.uniprot.org/uniprot/DYP_AURAJ DYP_AURAJ] Manganese-independent peroxidase that is able to convert a large number of compounds, but its physiological substrate is not known. In addition to classic peroxidase substrates (e.g. 2,6-dimethoxyphenol), oxidizes dyes such as Reactive Blue 5 and Reactive Black 5.<ref>PMID:19756587</ref> <ref>PMID:23111597</ref> <ref>PMID:25153532</ref> <ref>PMID:25495127</ref> <ref>PMID:25542606</ref> |
| - | Dye-decolorizing peroxidase (DyP) of Auricularia auricula-judae has been expressed in Escherichia coli as a representative of a new DyP family, and subjected to mutagenic, spectroscopic, crystallographic and computational studies. The crystal structure of DyP shows a buried haem cofactor, and surface tryptophan and tyrosine residues potentially involved in long-range electron transfer from bulky dyes. Simulations using PELE (Protein Energy Landscape Exploration) software provided several binding-energy optima for the anthraquinone-type RB19 (Reactive Blue 19) near the above aromatic residues and the haem access-channel. Subsequent QM/MM (quantum mechanics/molecular mechanics) calculations showed a higher tendency of Trp-377 than other exposed haem-neighbouring residues to harbour a catalytic protein radical, and identified the electron-transfer pathway. The existence of such a radical in H2O2-activated DyP was shown by low-temperature EPR, being identified as a mixed tryptophanyl/tyrosyl radical in multifrequency experiments. The signal was dominated by the Trp-377 neutral radical contribution, which disappeared in the W377S variant, and included a tyrosyl contribution assigned to Tyr-337 after analysing the W377S spectra. Kinetics of substrate oxidation by DyP suggests the existence of high- and low-turnover sites. The high-turnover site for oxidation of RB19 (kcat> 200 s-1) and other DyP substrates was assigned to Trp-377 since it was absent from the W377S variant. The low-turnover site/s (RB19 kcat ~20 s-1) could correspond to the haem access-channel, since activity was decreased when the haem channel was occluded by the G169L mutation. If a tyrosine residue is also involved, it will be different from Tyr-337 since all activities are largely unaffected in the Y337S variant.
| + | |
| - | | + | |
| - | Catalytic surface radical in dye-decolorizing peroxidase: a computational, spectroscopic and site-directed mutagenesis study.,Linde D, Pogni R, Canellas M, Lucas F, Guallar V, Baratto MC, Sinicropi A, Saez-Jimenez V, Coscolin C, Romero A, Medrano FJ, Ruiz-Duenas FJ, Martinez AT Biochem J. 2015 Mar 1;466(2):253-62. doi: 10.1042/BJ20141211. PMID:25495127<ref>PMID:25495127</ref>
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| - | | + | |
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| + | |
| - | </div> | + | |
| - | <div class="pdbe-citations 5ikd" style="background-color:#fffaf0;"></div> | + | |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Auraj]] | + | [[Category: Auricularia auricula-judae]] |
| - | [[Category: Dye decolorizing peroxidase]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Davo-Siguero, I]] | + | [[Category: Davo-Siguero I]] |
| - | [[Category: Martinez, A T]] | + | [[Category: Martinez AT]] |
| - | [[Category: Romero, A]] | + | [[Category: Romero A]] |
| - | [[Category: F359g variant]]
| + | |
| - | [[Category: Heme]]
| + | |
| - | [[Category: Oxidoreductase]]
| + | |
| Structural highlights
Function
DYP_AURAJ Manganese-independent peroxidase that is able to convert a large number of compounds, but its physiological substrate is not known. In addition to classic peroxidase substrates (e.g. 2,6-dimethoxyphenol), oxidizes dyes such as Reactive Blue 5 and Reactive Black 5.[1] [2] [3] [4] [5]
References
- ↑ Liers C, Bobeth C, Pecyna M, Ullrich R, Hofrichter M. DyP-like peroxidases of the jelly fungus Auricularia auricula-judae oxidize nonphenolic lignin model compounds and high-redox potential dyes. Appl Microbiol Biotechnol. 2010 Feb;85(6):1869-79. PMID:19756587 doi:10.1007/s00253-009-2173-7
- ↑ Liers C, Pecyna MJ, Kellner H, Worrich A, Zorn H, Steffen KT, Hofrichter M, Ullrich R. Substrate oxidation by dye-decolorizing peroxidases (DyPs) from wood litter-degrading agaricomycetes compared to other fungal and plant heme-peroxidases. Appl Microbiol Biotechnol. 2013 Jul;97(13):5839-49. PMID:23111597 doi:10.1007/s00253-012-4521-2
- ↑ Linde D, Coscolín C, Liers C, Hofrichter M, Martínez AT, Ruiz-Dueñas FJ. Heterologous expression and physicochemical characterization of a fungal dye-decolorizing peroxidase from Auricularia auricula-judae. Protein Expr Purif. 2014 Nov;103:28-37. PMID:25153532 doi:10.1016/j.pep.2014.08.007
- ↑ Linde D, Pogni R, Canellas M, Lucas F, Guallar V, Baratto MC, Sinicropi A, Saez-Jimenez V, Coscolin C, Romero A, Medrano FJ, Ruiz-Duenas FJ, Martinez AT. Catalytic surface radical in dye-decolorizing peroxidase: a computational, spectroscopic and site-directed mutagenesis study. Biochem J. 2015 Mar 1;466(2):253-62. doi: 10.1042/BJ20141211. PMID:25495127 doi:http://dx.doi.org/10.1042/BJ20141211
- ↑ Strittmatter E, Serrer K, Liers C, Ullrich R, Hofrichter M, Piontek K, Schleicher E, Plattner DA. The toolbox of Auricularia auricula-judae dye-decolorizing peroxidase - Identification of three new potential substrate-interaction sites. Arch Biochem Biophys. 2014 Dec 23. pii: S0003-9861(14)00432-9. doi:, 10.1016/j.abb.2014.12.016. PMID:25542606 doi:http://dx.doi.org/10.1016/j.abb.2014.12.016
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