The free Niblue-C6-IMC exists in a folded conformation where fluorescence is quenched, and when it binds to COX-2 in the Golgi apparatus of cancer cells, it is forced to adopt the unfolded state, and then fluorescence is turned on. Niblue-C6-IMC was proved to specifically target COX-2 by native polyacrylamide gel electrophoresis analysis.
自由的Niblue-C6-IMC存在于一种折叠构象中,荧光被猝灭,当它与癌细胞高尔基体中的COX-2结合时,被迫采用展开状态,然后荧光被打开。通过原生聚丙烯酰胺凝胶电泳分析,证明了Niblue-C6-IMC能够特异性靶向COX-2。