Expression, purification and crystallization of a dye-decolourizing peroxidase from Dictyostelium discoideum.

Expression, purification and crystallization of a dye-decolourizing peroxidase from Dictyostelium discoideum.
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盘基网柄菌染料脱色过氧化物酶的表达、纯化和结晶

DOI:
10.1107/s2053230x14000545
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发表时间:
2014
期刊:
Acta crystallographica. Section F, Structural biology communications
影响因子:
--
通讯作者:
D.J. Manstein
D.J. Manstein
中科院分区:
--
文献类型:
--
作者:
A. Rai;R. Fedorov ;D.J. Manstein

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染料脱色过氧化物酶是一类具有广泛底物特异性的含血红素过氧化物酶。使用H2O2作为电子受体,它们可以有效地使各种具有工业和环境相关性的染料脱色,例如蒽醌和偶氮染料。本研究利用大肠杆菌Rosetta(DE 3)pLysS高效表达盘基网柄藻染料脱色过氧化物酶DdDyP,并利用气相扩散法对其进行纯化和结晶。天然晶体衍射分辨率为1.65 μ m,空间群为P41212,晶胞参数a = B = 141.03,c = 95.56 μ m,α = β = γ = 90°。  不对称单元包含两个分子。
Dye-decolourizing peroxidases are haem-containing peroxidases with broad substrate specificity. Using H2O2 as an electron acceptor, they efficiently decolourize various dyes that are of industrial and environmental relevance, such as anthraquninone- and azo-based dyes. In this study, the dye-decolourizing peroxidase DdDyP from Dictyostelium discoideum was overexpressed in Escherichia coli strain Rosetta(DE3)pLysS, purified and crystallized using the vapour-diffusion method. A native crystal diffracted to 1.65 Å resolution and belonged to space group P41212, with unit-cell parameters a = b = 141.03, c = 95.56 Å, α = β = γ = 90°. The asymmetric unit contains two molecules.
染料脱色过氧化物酶 DyP 的催化机制可能需要天冬氨酸残基的摆动运动
DOI: --
发表时间: 2011
期刊: The FEBS Journal
影响因子: --
作者:
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