Obstacles and solutions for chemical synthesis of syndecan-3 (53–62) glycopeptides with two heparan sulfate chains
作者:Weizhun Yang、Keisuke Yoshida、Bo Yang、Xuefei Huang
DOI:10.1016/j.carres.2016.10.005
日期:2016.11
cassettes, which were utilized towards syndecan-3 glycopeptides. The glycopeptides presented many obstacles for post-glycosylation manipulation, peptide elongation, and deprotection. Following screening of multiple synthetic sequences, a successful strategy was finally established by constructing partially deprotected single glycan chain containing glycopeptides first, followed by coupling of the glycan-bearing
蛋白聚糖在许多生物学事件中起关键作用。由于它们的结构复杂性,迫切需要合成这类带有明确定义的聚糖链的糖肽的策略。在这项工作中,我们全面介绍了含有两条不同硫酸乙酰肝素链的syndecan-3糖肽(53-62)的合成。为了组装聚糖,开发了一种收敛的3 + 2 + 3方法,可产生两个不同的八糖氨基酸盒,这些盒可用于syndecan-3糖肽。糖肽为糖基化后的操作,肽的延伸和去保护提供了许多障碍。在筛选了多个合成序列之后,通过首先构建包含糖肽的部分脱保护的单聚糖链,最终建立了成功的策略,