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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Phenylalanine racemase (ATP-hydrolysing) ： ウィキペディア英語版 Phenylalanine racemase (ATP-hydrolysing) The enzyme phenylalanine racemase (, ''phenylalanine racemase'', ''phenylalanine racemase (adenosine triphosphate-hydrolysing)'', ''gramicidin S synthetase I'') is the enzyme that acts on amino acids and derivatives. It activates both the L & D stereo isomers of phenylalanine to form L-phenylalanyl adenylate and D-phenylalanyl adenylate, which are bound to the enzyme. These bound compounds are then transferred to the thiol group of the enzyme followed by conversion of its configuration, the D-isomer being the more favorable configuration of the two, with a 7 to 3 ratio between the two isomers. The racemisation reaction of phenylalanine is coupled with the highly favorable hydrolysis of adenosine triphosphate (ATP) to adenosine monophosphate (AMP) and pyrophosphate (PP), thermodynamically allowing it to proceed. This reaction is then drawn forward by further hydrolyzing PP to inorganic phosphate (Pi), via Le Chatelier's principle. ==Other names== *phenylalanine racemase *phenylalanine racemase (adenosine triphosphate-hydrolysing) *gramicidin S synthetase I 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Phenylalanine racemase (ATP-hydrolysing)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.