A new leucine-enkephalin analog containing p-azidophenylalanine was synthesized. It binds to the δ-opioid receptors of NG 108-15 cells with high affinity. Iodination of the compound decreased the affinity by 5 times, but the iodinated derivative still retains significant binding activity to the cells. Photochemical reactions revealed that the derivative predominantly labeled a 58 kilodaltons (kDa) polypeptide in the cells (possibly a δ-receptor component)
我们合成了一种含有对氮苯丙氨酸的新型亮氨酸-脑啡肽类似物。它能与 NG 108-15 细胞中的δ-阿片受体高亲和力结合。该化合物碘化后,其亲和力降低了 5 倍,但碘化衍生物对细胞仍具有显著的结合活性。光化学反应显示,该衍生物主要标记细胞中一种 58 千道尔顿(kDa)的多肽(可能是δ受体成分)。