产品内容
本酶催化的反应为2 S-Adenosyl 3-(Methylsulfanyl)propylamine + Spermidine = 2 S-Methyl-5'-Thioadenosine + N4-Bis(aminopropyl)spermidine (Overall Reaction);; (1A) S-Adenosyl 3-(Methylsulfanyl)propylamine + Spermidine = S-Methyl-5'-Thioadenosine + N4-Aminopropylspermidine;; (1B) S-Adenosyl 3-(Methylsulfanyl)propylamine + N4-Aminopropylspermidine = S-Methyl-5'-Thioadenosine + N4-Bis(aminopropyl)spermidine，系统名称为S-Adenosyl 3-(Methylsulfanyl)propylamine:spermidine 3-Aminopropyltransferase [N4-Bis(aminopropyl)spermidine Synthesizing]，该酶已从嗜热古菌科达卡球菌 Thermococcus kodakarensis 中得到表征，合成支链多胺N4-双(氨丙基)亚精胺，该物质为细胞在高温下生长所必需。以精胺为底物时，该酶生成N4-氨丙基精胺。
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