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Direct, Competitive Comparison of Linear, Monocyclic, and Bicyclic Libraries Using mRNA Display

机译:使用MRNA显示器直接,竞争性比较线性,单环和双环库

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Peptide macrocyclization is typically associated with the development of higher affinity and more protease stable protein ligands, and, as such, is an important tool in peptide drug discovery. Yet, within the context of a diverse library, does cyclization give inherent advantages over linear peptides? Here, we used mRNA display to create a peptide library of diverse ring sizes and topologies (monocyclic, bicyclic, and linear). Several rounds of in vitro selection against streptavidin were performed and the winning peptide sequences were analyzed for their binding affinities and overall topologies. The effect of adding a protease challenge on the enrichment of various peptides was also investigated. Taken together, the selection output yields insights about the relative abundance of binders of various topologies within a structurally diverse library.
机译:肽宏环化通常与较高亲和力和更多蛋白酶稳定的蛋白质配体的发育相关,并且因此是肽药物发现中的重要工具。 然而,在不同图书馆的背景下,环化对线性肽具有固有的优势吗? 在这里,我们使用MRNA显示器来创建不同环形尺寸和拓扑的肽库(单环,双环和线性)。 进行了几轮对链霉抗生物素蛋白的体外选择,分析了获胜的肽序列的结合亲和力和整体拓扑。 还研究了对各种肽的富集添加蛋白酶挑战的效果。 连胜,选择输出产生关于在结构多样化的文库内各种拓扑的相对丰富的相对丰富的见解。

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