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ATPクエン酸シンターゼ

ATPクエン酸シンターゼ
識別子
EC番号 2.3.3.8
CAS登録番号 9027-95-6
データベース
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB構造 RCSB PDB PDBj PDBe PDBsum
遺伝子オントロジー AmiGO / QuickGO
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ATPクエン酸シンターゼ(ATP citrate synthase、EC 2.3.3.7)は、以下の化学反応触媒する酵素である。

ADP + リン酸 + アセチルCoA + オキサロ酢酸ATP + クエン酸 + 補酵素A

従って、この酵素の基質はADPリン酸アセチルCoAオキサロ酢酸の4つ、生成物はATPクエン酸補酵素Aの3つである。

この酵素は転移酵素、特にアシル基アルキル基に変換するアシルトランスフェラーゼに分類される。系統名はアセチルCoA:オキサロ酢酸 C-ブタノイルトランスフェラーゼ [(pro-S)-カルボキシメチル形成, ADPリン酸化](acetyl-CoA:oxaloacetate C-acetyltransferase [(pro-S)-carboxymethyl-forming, ADP-phosphorylating])である。他に、ATP-citric lyase、adenosine triphosphate citrate lyase、citrate cleavage enzyme、citrate-ATP lyase、citric cleavage enzymeやATP citrate (pro-S)-lyase等とも呼ばれている。この酵素は、クエン酸回路逆クエン酸回路に関与している。

出典

[編集]
  • Lill U, Schreil A, Eggerer H (1982). “Isolation of enzymically active fragments formed by limited proteolysis of ATP citrate lyase”. Eur. J. Biochem. 125 (3): 645–50. doi:10.1111/j.1432-1033.1982.tb06731.x. PMID 6749502. 
  • Srere PA and Lipmann F (1953). “An enzymatic reaction between citrate, adenosine triphosphate and coenzyme A”. J. Am. Chem. Soc. 75 (19): 4874. doi:10.1021/ja01115a547. 
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ATPクエン酸シンターゼ
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