| Structural highlights
4uzi is a 2 chain structure with sequence from Auricularia auricula-judae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Method: | X-ray diffraction, Resolution 2.1Å |
| Ligands: | , , , , , , , , , , , |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
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]
Publication Abstract from PubMed
Dye-decolorizing peroxidases (DyPs) such as AauDyPI from the fungus Auricularia auricula-judae are able to oxidize substrates of different kinds and sizes. A crystal structure of an AauDyPI-imidazole complex gives insight into the binding patterns of organic molecules within the heme cavity of a DyP. Several small N-containing heterocyclic aromatics are shown to bind in the AauDyPI heme cavity, hinting to susceptibility of DyPs to azole-based inhibitors similar to cytochromes P450. Imidazole is confirmed as a competitive inhibitor with regard to peroxide binding. In contrast, bulky substrates such as anthraquinone dyes are converted at the enzyme surface. In the crystal structure a substrate analog, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES), binds to a tyrosine-rich hollow harboring Y25, Y147, and Y337. Spin trapping with a nitric oxide donor uncovers Y229 as an additional tyrosine-based radical center in AauDyPI. Multi-frequency EPR spectroscopy further reveals the presence of at least one intermediate tryptophanyl radical center in activated AauDyPI with W377 as the most likely candidate.
The toolbox of Auricularia auricula-judae dye-decolorizing peroxidase - Identification of three new potential substrate-interaction sites.,Strittmatter E, Serrer K, Liers C, Ullrich R, Hofrichter M, Piontek K, Schleicher E, Plattner DA Arch Biochem Biophys. 2014 Dec 23. pii: S0003-9861(14)00432-9. doi:, 10.1016/j.abb.2014.12.016. PMID:25542606[6]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
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
- ↑ 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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