...In the body, it is involved in many reactions, such as hydroxylation (related to detoxification and the biosynthesis of certain hormones), desaturation of fatty acids, metabolism of physiologically active substances such as prostaglandins, and oxidative decomposition of aromatic compounds. In addition, there are various peroxidases that use hydrogen peroxide as an electron acceptor (catalyzing the reaction AH 2 + H 2 O 2 ⇄ A + 2H 2 O), and as a somewhat special case, hydrogenases exist in some bacteria that catalyze oxidation-reduction reactions involving the movement of hydrogen molecules. [Masao Kawakita]... *Some terminology explanations that mention "hydrogenase" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…生体内においては,水酸化(解毒,ある種のホルモンの生合成などに関係),脂肪酸の不飽和化,プロスタグランジンなどの生理活性物質の代謝,芳香族化合物の酸化的分解など,多くの反応に関与する。 このほか,過酸化水素を電子受容体とする種々のペルオキシダーゼperoxidase(AH2+H2O2⇄A+2H2Oという形式の反応を触媒する)があり,またやや特殊なものとして,ある種の細菌には,水素分子の出入りを伴う酸化還元反応を触媒するヒドロゲナーゼhydrogenaseが存在する。【川喜田 正夫】。… ※「hydrogenase」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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