作者:Zhongqiu Ni、Lanxia Zhou、Xu Li、Jing Zhang、Shouliang Dong
DOI:10.1371/journal.pone.0141918
日期:——
A novel amino acid derivative 3-(4-(1, 2, 4, 5-tetrazine-3-yl) phenyl)-2-aminopropanoic acid was synthesized in this study. The compound possessed better water-solubility and was synthesized more easily compared with the well-known and commercially available 3-(p-benzylamino)-1, 2, 4, 5-tetrazine. Tetrazine-containing amino acid showed excellent stability in biological media and might be used for cancer cell labeling. Moreover, the compound remained relatively stable in 50% TFA/DCM with little decomposition after prolonged exposure at room temperature. The compound could be utilized as phenylalanine or tyrosine analogue in peptide modification, and the tetrazine-containing peptide demonstrated more significant biological activity than that of the parent peptide. The combination of tetrazine group and amino acid offered broad development prospects of the bioorthogonal labeling and peptide synthesis.
本研究合成了一种新型氨基酸衍生物3-(4-(1,2,4,5-四嗪-3-基)苯基)-2-氨基丙酸。与众所周知的市售3-(对苄氨基)-1,2,4,5-四嗪相比,该化合物具有更好的水溶性,更容易合成。含四嗪的氨基酸在生物介质中表现出优异的稳定性,可用于癌细胞标记。此外,该化合物在 50% TFA/DCM 中保持相对稳定,在室温下长时间暴露后几乎没有分解。该化合物可作为苯丙氨酸或酪氨酸类似物用于肽修饰,且含四嗪的肽比母肽表现出更显着的生物活性。四嗪基团与氨基酸的结合为生物正交标记和多肽合成提供了广阔的发展前景。