Rapid, Stable, Chemoselective Labeling of Thiols with Julia-Kocieński-like Reagents: A Serum-Stable Alternative to Maleimide-Based Protein Conjugation
作者:Narihiro Toda、Shigehiro Asano、Carlos F. Barbas
DOI:10.1002/anie.201306241
日期:2013.11.25
Exquisite chemoselectivity for cysteine has been found for methylsulfonylphenyloxadiazole compounds under various buffer conditions. Furthermore, the resulting protein conjugates have superior stability to cysteine–maleimide conjugates in human plasma (HSA=human serum albumin, MBP‐C‐HA=maltose‐binding protein). This new thiol‐click reaction offers a new approach to generate stable protein conjugates
已发现在各种缓冲条件下甲基磺酰基苯基恶二唑化合物对半胱氨酸具有精确的化学选择性。此外,所得到的蛋白质偶联物比人血浆中的半胱氨酸-马来酰亚胺偶联物(HSA=人血清白蛋白,MBP-C-HA=麦芽糖结合蛋白)具有更好的稳定性。这种新的硫醇点击反应为生成稳定的蛋白质偶联物和聚乙二醇化蛋白质提供了一种新方法。