Chemoenzymatic Synthesis and Applications of Prokaryote-Specific UDP-Sugars.

Chemoenzymatic Synthesis and Applications of Prokaryote-Specific UDP-Sugars.
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DOI:
10.1016/bs.mie.2017.06.003
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发表时间:
2017
影响因子:
--
通讯作者:
Imperiali B
Imperiali B
中科院分区:
生物学4区
文献类型:
--
作者:
Zamora CY;Schocker NS;Chang MM;Imperiali B

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该方法描述了几种核苷酸糖的化学酶合成,这些核苷酸糖是原核生物合成N-和o -连接糖蛋白的必要底物。蛋白质糖基化现在已知在原核生物中广泛存在,并通过几种酶的顺序作用进行,利用普通和修饰的原核生物特异性糖核苷酸。后者包括udp -己糖如UDP-diNAc-bacillosamine (UDP-diNAcBac), UDP-diNAcAlt和udp -2,3- dinacmana,也是其他细菌和古细菌糖缀合物的重要组成部分。这些“高价值”中间体的现成可用性将使抑制剂筛选、糖缀合物生物合成途径的发现以及用于代谢工程的非天然碳水化合物结合的研究过程成为可能。
This method describes the chemoenzymatic synthesis of several nucleotide sugars, which are essential substrates in the biosynthesis of prokaryotic N- and O-linked glycoproteins. Protein glycosylation is now known to be widespread in prokaryotes and proceeds via sequential action of several enzymes, utilizing both common and modified prokaryote-specific sugar nucleotides. The latter, which include UDP-hexoses such as UDP-diNAc-bacillosamine (UDP-diNAcBac), UDP-diNAcAlt and UDP-2,3-diNAcManA, are also important components of other bacterial and archaeal glycoconjugates. The ready availability of these “high-value” intermediates will enable courses of study into inhibitor screening, glycoconjugate biosynthesis pathway discovery, and unnatural carbohydrate incorporation toward metabolic engineering.
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