Bypassing the proline/thiazoline requirement of the macrocyclase PatG.

Bypassing the proline/thiazoline requirement of the macrocyclase PatG.
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DOI:
10.1039/c7cc06550g
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发表时间:
2017-11-14
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Naismith JH
Naismith JH
中科院分区:
其他
文献类型:
--
作者:
Oueis E;Stevenson H;Jaspars M;Westwood NJ;Naismith JH

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使用肽连接酶PatGmac对完全非肽化合物和不含杂环的大环进行大环化。生物催化是一个快速发展的领域,其中酶的天然能力被利用或工程化用于合成化学。PatG酶是一种极其混杂的大环化酶,其耐受底物内的非天然氨基酸和非氨基酸。然而,它确实需要在核心肽的C-末端位置处的脯氨酸或噻唑啉,这意味着最终产物必须含有该基团。在这里,我们显示的指导下,结构的洞察力,我们已经确定了两种合成路线,三唑和双半胱氨酸,规避这一要求。使用三唑,我们表明PatGmac可以大环化最终产物中不含任何氨基酸的底物。
Macrocyclisation of fully non-peptidic compounds and non-heterocycle containing macrocycles using the peptidic ligase PatGmac. Biocatalysis is a fast developing field in which an enzyme's natural capabilities are harnessed or engineered for synthetic chemistry. The enzyme PatG is an extremely promiscuous macrocyclase enzyme tolerating both non-natural amino acids and non-amino acids within the substrate. It does, however, require a proline or thiazoline at the C-terminal position of the core peptide which means the final product must contain this group. Here, we show guided by structural insight we have identified two synthetic routes, triazole and a double cysteine, that circumvent this requirement. With the triazole, we show PatGmac can macrocyclise substrates that do not contain any amino acids in the final product.
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影响因子: 3.4
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