7 and 10 were utilised for immobilisation of the trisphosphate on Sepharose and the subsequent affinity chromatography effected purification of the above proteins. A photoaffinity probe, the appendage of which acted as the photoaffinity probe as well as a non-radioactive molecular marker, was also derived from the analogue 7.
具有2-酰基取代基对
氨基
苯甲酰基(7),对
叠氮基
苯甲酰基(8),4-(5- [2-(
苯甲
酰胺基)乙基] -2-的2-肌醇1,4,5-
三磷酸类似物系列合成了羟基
苯基偶
氮)
苯甲酰基(9)和顺式,反-4-
氨基
环己基羰基(10)并检查了它们对5-
磷酸酶,3-激酶,tri化
三磷酸结合活性和Ca(2+)的影响释放活动。每种类似物分别抑制D- [5-32P] Ins(1,4,5)P3的
水解和D- [3H] Ins(1,4,5)P3的
磷酸化,分别由红细胞鬼影和脑细胞溶胶催化。这些类似物在从透化细胞释放Ca2 +时起完全激动剂的作用,还抑制了D- [3H] Ins(1,4,5)P3与小脑微粒体的结合。利用类似物7和10将
三磷酸酯固定在
琼脂糖凝胶上,随后的亲和层析实现了上述蛋白质的纯化。也从类似物7衍生出了一个光亲和探针,其附件充当光亲和探针以及非放射性分子标记。