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    • 3. 发明专利
    • Electrode catalyst, enzyme electrode, fuel cell and biosensor
    • 电极催化剂,酶电极,燃料电池和生物传感器
    • JP2010183857A
    • 2010-08-26
    • JP2009028988
    • 2009-02-10
    • Kanazawa Univ国立大学法人金沢大学
    • KATAOKA KUNISHIGESAKURAI TAKESHIMAEDA YASUOITO TAKAHIRO
    • C12N15/09C12N9/02G01N27/327H01M4/90H01M8/16
    • Y02E60/527
    • PROBLEM TO BE SOLVED: To provide an electrode catalyst comprising a multi-copper oxidase having a small overvoltage and excellent power generating efficiency, an enzyme electrode with the electrode catalyst, as well as a fuel cell and biosensor equipped with the enzyme electrode.
      SOLUTION: The electrode catalyst includes a multi-copper oxidase having a plurality of copper atoms including at least type I copper, wherein at least one cysteine residue and two histidine residues are coordinated with the type I copper, and a proline residue which is present between the cysteine residue and a histidine residue forming a ligand loop among the two histidine residues, or a proline residue which adjoins downstream of the histidine residue forming no ligand loop of the two histidine residues is substituted with an amino acid residue except a proline residue, and a hydrogen bond is formed between the amide proton of the substituted amino acid residue and the sulfur atom of the type I copper-coordinated cysteine residue.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种电极催化剂,其包含具有小过电压和优异的发电效率的多铜氧化酶,具有电极催化剂的酶电极,以及配备有酶电极的燃料电池和生物传感器 。 解决方案:电极催化剂包括具有多个至少I型铜的铜原子的多铜氧化酶,其中至少一个半胱氨酸残基和两个组氨酸残基与I型铜配位,脯氨酸残基 存在于两个组氨酸残基之间形成配体环的半胱氨酸残基和组氨酸残基之间,或者不形成两个组氨酸残基的配体环的组氨酸残基下游邻接的脯氨酸残基被除脯氨酸以外的氨基酸残基取代 并且在取代的氨基酸残基的酰胺质子与I型铜配位的半胱氨酸残基的硫原子之间形成氢键。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Recombinant type bilirubin oxidase and method for producing the same
    • 重组型胆红素氧化酶及其生产方法
    • JP2005073660A
    • 2005-03-24
    • JP2003310970
    • 2003-09-03
    • Kanazawa Univ Tlo Inc有限会社金沢大学ティ・エル・オー
    • KATAOKA KUNISHIGETANAKA KAZUHIROSAKURAI TAKESHI
    • G01N33/72C12N9/06C12N15/09C12Q1/26
    • PROBLEM TO BE SOLVED: To provide a bilirubin oxidase having a stable catalytic activity and a method for producing the same.
      SOLUTION: This method for producing the bilirubin oxidase is provided by introducing a bilirubin oxidase gene originated from an incomplete filamentous fungus, Myrothecium verrucaria MT-1 and encoding the bilirubin oxidase into e.g. yeast belonging to the genus Pichia as a host animal for performing a transformation. Thereby, the recombinant type bilirubin oxidase having the stable catalytic activity can be produced in a large amount. The obtained recombinant type bilirubin oxidase can be used for a quantitative measurement of bilirubin in an aqueous solution, e.g. in blood, blood serum, blood plasma, bile liquid or urine.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 待解决的问题:提供具有稳定催化活性的胆红素氧化酶及其制备方法。 产生胆红素氧化酶的方法是通过引入源自不完全丝状真菌的白藜芦醇MT-1的胆红素氧化酶基因,并将胆红素氧化酶编码为例如。 属于毕赤酵母属的酵母作为进行转化的宿主动物。 由此,可以大量生产具有稳定的催化活性的重组型胆红素氧化酶。 获得的重组型胆红素氧化酶可用于水溶液中胆红素的定量测定,例如, 血液,血清,血浆,胆汁液或尿液。 版权所有(C)2005,JPO&NCIPI