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首页> 外文期刊>Applied Microbiology and Biotechnology >Quinoproteins: structure, function, and biotechnological applications
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Quinoproteins: structure, function, and biotechnological applications

机译：喹蛋白：结构，功能和生物技术应用

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摘要

A new class of oxidoreductase containing an amino acid-derived o-quinone cofactor, of which the most typical is pyrroloquinoline quinone (PQQ), is called quinoproteins, and has been recognized as the third redox enzyme following pyridine nucleotide- and flavin-dependent dehydrogenases. Some quinoproteins include a heme c moiety in addition to the quinone cofactor in the molecule and are called quinohemoproteins. PQQ-containing quinoproteins and quinohemoproteins have a common structural basis, in which PQQ is deeply embedded in the center of the unique superbarrel structure. Increased evidence for the structure and function of quinoproteins has revealed their unique position within the redox enzymes with respect to catalytic and electron transfer properties, and also to physiological and energetic function. The peculiarities of the quinoproteins, together with their unique substrate specificity, have encouraged their biotechnological application in the fields of biosensing and bioconversion of useful compounds, and also to environmental treatment.
机译：含有氨基酸衍生的邻醌辅助因子的一类新的氧化还原酶，其中最典型的是吡咯并喹啉醌（PQQ），被称为喹蛋白，被公认为是继吡啶核苷酸和黄素依赖性脱氢酶之后的第三种氧化还原酶。 。一些醌蛋白除分子中的醌辅因子外还包括血红素c部分，被称为喹血红蛋白。含有PQQ的喹蛋白和喹血红蛋白具有共同的结构基础，其中PQQ深入地嵌入了独特的超大桶结构的中心。越来越多的关于喹蛋白的结构和功能的证据表明，它们在氧化还原酶中在催化和电子转移性质以及生理和能量功能方面具有独特的地位。喹蛋白的特殊性及其独特的底物特异性，促进了它们在有用化合物的生物传感和生物转化领域以及环境处理领域的生物技术应用。

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  • 来源
    《Applied Microbiology and Biotechnology》 |2002年第1期|13-22|共10页
  • 作者

    K. Matsushita; H. Toyama; M. Yamada; O. Adachi;

  • 作者单位

    Department of Biological Chemistry Faculty of Agriculture Yamaguchi University Yamaguchi Yamaguchi 753–8515 Japan;

    Department of Biological Chemistry Faculty of Agriculture Yamaguchi University Yamaguchi Yamaguchi 753–8515 Japan;

    Department of Biological Chemistry Faculty of Agriculture Yamaguchi University Yamaguchi Yamaguchi 753–8515 Japan;

    Department of Biological Chemistry Faculty of Agriculture Yamaguchi University Yamaguchi Yamaguchi 753–8515 Japan;

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