…A compound in which acetic acid is bonded to the SH group of coenzyme A by a thioester bond, it is an important donor of acetyl groups in living organisms as a high-energy phosphate ester (⊿ G゜′=-7.7kcal). It was isolated from yeast by F. Lynen in the early 1950s, and it was revealed to correspond to the substance that had been called active acetic acid. In addition to being produced from pyruvic acid in the pyruvate dehydrogenase reaction in living organisms, it is also produced by the β-oxidation of fatty acids and the activation reaction of acetic acid. … *Some of the terminology that mentions "Lynen, F." is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…コエンザイムAのSH基に酢酸がチオエステル結合した化合物で,高エネルギーリン酸エステル(⊿G゜′=-7.7kcal)として,生体内におけるアセチル基の供与体として重要。1950年代のはじめにリネンF.Lynenが酵母から単離し,それまで活性酢酸と呼ばれていた物質に相当することが明らかにされた。生体内ではピルビン酸デヒドロゲナーゼ反応でピルビン酸から生成するのに加えて,脂肪酸のβ酸化,酢酸の活性化反応などによっても生成する。… ※「Lynen,F.」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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