Site-Specific Conjugation of Peptides and Proteins via Rebridging of Disulfide Bonds Using the Thiol–Yne Coupling Reaction
作者:Nils Griebenow、Alicia M. Dilmaç、Simone Greven、Stefan Bräse
DOI:10.1021/acs.bioconjchem.5b00682
日期:2016.4.20
methodology proved to be reproducible with various alkynes and different peptides. This study includes the first rebridging of the disulfide bond of a peptide through a thiol-yne reaction with a cyclooctyne. In all cases, the rebridging was proven by MS analyses and confirmed by the absence of olefinic protons on 1H NMR spectra of the resulting products. Finally, this one-pot reduction thiol-yne conjugation
在这里,我们描述了我们以前报道的光介导的二硫键再桥方法的扩展到肽和蛋白质的缀合。该方法论证明可以用各种炔烃和不同的肽重现。这项研究包括通过与环辛炔的硫醇-炔反应首次重新肽段的二硫键。在所有情况下,再桥联均通过MS分析证明,并通过所得产物的1H NMR光谱上不存在烯烃质子来证实。最终,这种一锅还原的巯基-yne偶联成功地应用于了有希望的转化的抗体Fab片段,这为将来合成新的蛋白质和抗体偶联物奠定了良好的基础。