Asparaginyl endopeptidases: enzymology, applications and limitations.

Asparaginyl endopeptidases: enzymology, applications and limitations.
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DOI:
10.1039/d1ob00608h
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发表时间:
2021-06-16
影响因子:
3.2
通讯作者:
Luk LYP
Luk LYP
中科院分区:
化学3区
文献类型:
--
作者:
Tang TMS;Luk LYP

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天冬酰胺酰内肽酶 (AEP) 是在哺乳动物和植物细胞中发现的半胱氨酸蛋白酶。发现来自植物物种的几种 AEP 亚型表现出转肽酶活性,这对于环肽生物合成过程中关键的头尾环化反应是不可或缺的。由于许多植物 AEP 通过相对较短的底物识别序列在肽连接方面表现出优异的酶动力学,因此它们已成为肽和蛋白质修饰的有吸引力的工具。在这篇综述中,将介绍 AEP 酶学及其在多肽环化和标记中的应用的研究。重要的是,还将讨论使用 AEP 的局限性以及未来研究和创新的机会。已经讨论了使用天冬酰胺酰内肽酶 (AEP) 作为多肽修饰工具的潜力。
Asparaginyl endopeptidases (AEP) are cysteine proteases found in mammalian and plant cells. Several AEP isoforms from plant species were found to exhibit transpeptidase activity which is integral for the key head-to-tail cyclisation reaction during the biosynthesis of cyclotides. Since many plant AEPs exhibit excellent enzyme kinetics for peptide ligation via a relatively short substrate recognition sequence, they have become appealing tools for peptide and protein modification. In this review, research focused on the enzymology of AEPs and their applications in polypeptide cyclisation and labelling will be presented. Importantly, the limitations of using AEPs and opportunities for future research and innovation will also be discussed. The potentials of using asparaginyl endopeptidases (AEP) as tools for polypeptide modifications have been discussed.
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