Four enzymes showing hydrolytic activity on derivatives of 2‐azabicyclo[2.2.1]hept‐5‐en‐3‐one (Vince lactam) were successfully identified through analysis of protein crystal structure and amino acid sequence alignments. Enantiocomplementary activities were observed on Vince lactam and its saturated analog 2‐azabicyclo[2.2.1]heptan‐3‐one with non‐heme chloroperoxidase (CPO‐T) from Streptomyces aureofaciens
通过对蛋白质晶体结构和
氨基酸序列比对的分析,成功鉴定出了对
2-氮杂双环[2.2.1] hept-5-en-3-one(Vince内酰胺)的衍
生物具有
水解活性的四种酶。具有对映体互补活性,对Vince内酰胺及其饱和类似物
2-氮杂双环[2.2.1]庚烷-3-酮与来自
金黄色链霉菌的非血红素
氯过氧化物酶(CPO-T),来自恶臭假单胞菌的环
酰亚胺水解酶(CIH),聚酰胺酰胺(诺卡氏菌(Nocardia farcinica)的NfpolyA)和球红球菌(Rhodococcus globerulus)的酰胺酶(
AMI)均获得了理想的动力学拆分(E> 200)。内酰胺中酰胺键共振稳定的计算分析与内酰胺的整体反应模式密切相关,后者是环大小和应变的函数。在这项研究中克隆和研究的
生物催化剂可能对合成对映纯碳环核苷类似物很感兴趣。