…(7) Others Heme, a derivative of porphyrin in which iron is coordinated to tetrapyrrole, is a coenzyme for various oxidoreductases, and ubiquinone, or coenzyme Q (abbreviated as CoQ), is also important in the electron transport system. Tetrahydrofolic acid is involved in the transfer of C1 units such as formyl groups, cobamide coenzyme as vitamin B12 is involved in lipid and nucleic acid metabolism involving intramolecular transfer of H, C, and other molecules (anemia is a well-known deficiency disease), ATP is involved in phosphoryl group transfer, and S -adenosylmethionine is involved in methyl group transfer. Many coenzymes play important roles in biological reactions. Vitamins [Tokushige Masanobu] … *Some of the terminology that mentions "cobamide coenzyme" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…(7)その他 テトラピロールに鉄が配位したポルフィリンの誘導体としてのヘムは各種酸化還元酵素の補酵素として,またユビキノンubiquinone,すなわち補酵素Q(CoQと略記)も電子伝達系で重要。テトラヒドロ葉酸はホルミル基などのC1ユニットの転移に,ビタミンB12としてのコバミド補酵素cobamide coenzymeはH,Cその他の分子内転移をめぐる脂質,核酸代謝に(欠乏症としては貧血が有名),ATPはリン酸基転移に,S‐アデノシルメチオニンはメチル基転移にというぐあいに,多くの補酵素が生体反応で重要な役割をになっている。ビタミン【徳重 正信】。… ※「cobamide coenzyme」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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