A thio-selective radioactive labeling agent has the following general formula: *R-L-VS, wherein said *R is a radioisotope, L is a linking group, and VS is a vinylsulfone functional group, wherein said labeling agent is capable of covalently bonding to thiol containing biomolecules such as proteins or peptides. Use of said labeling agents for labeling neurotensin and its variants are also disclosed.
一种
硫选择性放射性标记试剂具有以下一般公式:*R-L-VS,其中*R是放射性同位素,L是连接基团,VS是
乙烯磺
酮官能团,其中所述标记试剂能够共价结合到含有巯基的
生物分子,如蛋白质或肽。还公开了使用所述标记试剂标记神经肽素及其变体的方法。