The toolbox of Auricularia auricula-judae dye-decolorizing peroxidase - Identification of three new potential substrate-interaction sites.
The toolbox of Auricularia auricula-judae dye-decolorizing peroxidase - Identification of three new potential substrate-interaction sites.
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黑木耳染料脱色过氧化物酶的工具箱 - 三个新的潜在底物相互作用位点的鉴定
DOI:
10.1016/j.abb.2014.12.016
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发表时间:
2015
影响因子:
3.9
通讯作者:
Plattner
中科院分区:
文献类型:
--
作者:
Strittmatter;Serrer;Ullrich;Hofrichter;Piontek;Schleicher;Plattner
Dye-decolorizing peroxidases (DyPs) such asAauDyPI from the fungusAuricularia auricula-judaeare able to oxidize substrates of different kinds and sizes. A crystal structure of anAauDyPI–imidazole complex gives insight into the binding patterns of organic molecules within the heme cavity of a DyP. Several smallN-containing heterocyclic aromatics are shown to bind in theAauDyPI 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 inAauDyPI. Multi-frequency EPR spectroscopy further reveals the presence of at least one intermediate tryptophanyl radical center in activatedAauDyPI with W377 as the most likely candidate.
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DOI:
--
发表时间:
2011
期刊:
The FEBS Journal
影响因子:
--
作者:
Toru Yoshida;H. Tsuge;H. Konno;T. Hisabori;Y. Sugano
通讯作者:
Y. Sugano
影响因子:
16
作者:
Eric Strittmatter;D. Plattner;K. Piontek
通讯作者:
K. Piontek
DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
A. Mccoy;R. Grosse-Kunstleve;L. C. Storoni;R. Read
通讯作者:
A. Mccoy;R. Grosse-Kunstleve;L. C. Storoni;R. Read
影响因子:
4.4
作者:
MCCONNELL, HM
通讯作者:
MCCONNELL, HM
影响因子:
4.8
作者:
F. J. Ruiz;R. Pogni;M. Morales;S. Giansanti;M. Maté;A. Romero;M. Martínez;R. Basosi;Angel T. Martı́nez
通讯作者:
Angel T. Martı́nez