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DOI: 10.3791/58368-v
Please note that some of the translations on this page are AI generated. Click here for the English version.
富含半胱氨酸的肽折叠成不同的三维结构, 这取决于它们的二硫化物连通性。当缓冲氧化不导致所需的二硫化物连接时, 需要有针对性地合成单独的二硫化物异构体。该协议涉及 3-二硫键结合肽的选择性合成及其结构分析, 采用核磁共振和 ms/质谱研究。
该方法有助于回答肽合成领域的关键问题,如合成二硫化富肽并确定其相应的二硫化物桥模式。该技术的主要优点是,它允许选择性地合成不同的二硫化粘结肽异构体及其随后的化学和结构表征。通常,对这种方法的新鲜个体会挣扎,因为每种非硫化物丰富的肽的行为方式不同。
合成和分析可能需要针对单个肽或蛋白质进行部分优化。将文本协议中列出的试剂转移到相应的容器中,并放在固体相肽合成器的适当球拍中。然后,在反应柱中加入100毫克干树脂,并放入合成器的球拍中。
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