as substrates to evaluate the photocatalyst-proximity dependences of candidates for tyrosine labelling reagents. The 1-methyl-4-aryl-urazole (MAUra) structure was found to be a novel tyrosyl radical trapping agent to label tyrosine residues effectively under the conditions where the ruthenium photocatalyst and tyrosine were in close proximity. Using a ruthenium photocatalyst conjugated to a carbonic
我们设计并合成了与脯
氨酸接头和
钌光催化剂偶联的肽。这些肽用作底物,以评估
酪氨酸标记试剂候选物对光催化剂的依赖性。发现1-甲基-4-芳基-
脲基(MAUra)结构是一种新型的酪
氨酰基自由基捕获剂,可在
钌光催化剂和
酪氨酸非常接近的条件下有效地标记
酪氨酸残基。使用与
碳酸酐酶
配体偶联的
钌光催化剂,通过
叠氮化物或脱
硫生物素偶联的MAUra衍
生物以显着的靶标选择性标记复合蛋白混合物中的靶蛋白。