首页> 外文期刊>Chemistry: A European journal >Solid-phase organic tagging resins for labeling biomolecules by 1,3-dipolar cycloaddition: Application to the synthesis of a fluorescent non-peptidic vasopressin receptor ligand
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Solid-phase organic tagging resins for labeling biomolecules by 1,3-dipolar cycloaddition: Application to the synthesis of a fluorescent non-peptidic vasopressin receptor ligand

机译:通过1,3-偶极环加成标记生物分子的固相有机标记树脂:在合成荧光非肽加压素受体配体中的应用

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摘要

Two novel solid-phase organic tagging (SPOrT) resins were synthesized to facilitate the labeling of peptides and small organic compounds with a fluorescent probe. Both resins were obtained from the commercially available backbone amide linker (BAL) resin. Following the solid-phase synthesis of model compounds, a tripeptide and benzazepine, the fluorescent probe derived from Lissamine Rhodamine B was incorporated through Cu-I-catalyzed 1,3-dipolar cycloaddition. Final cleavage in acidic media enabled access to both types of molecules in good yield with high purity. The SPOrT resin was successfully applied to the preparation of the first non-peptidic fluorescent compound with a nanomolar affinity for the human vasopressin V-2 receptor (V2R) subtype. This molecule will find application in binding assays that use polarization or fluorescence resonance energy-transfer (FRET) techniques. The SPOrT resins are also well suited for other tags and the parallel synthesis of a fluorescently tagged library for protein screening.
机译:合成了两种新型的固相有机标记(SPOrT)树脂,以利于使用荧光探针标记肽和小的有机化合物。两种树脂均购自市售的骨架酰胺连接基(BAL)树脂。在模型化合物,三肽和苯并ze庚因的固相合成之后,通过铜-I催化的1,3-偶极环加成反应,引入了衍生自Lissamine Rhodamine B的荧光探针。在酸性介质中的最终裂解使得能够以高收率和高纯度接近两种类型的分子。 SPOrT树脂已成功应用于制备第一个对人血管加压素V-2受体(V2R)亚型具有纳摩尔摩尔亲和力的非肽荧光化合物。该分子将在使用极化或荧光共振能量转移(FRET)技术的结合测定中找到应用。 SPOrT树脂也非常适用于其他标签和用于蛋白质筛选的荧光标签文库的并行合成。

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