Spät A, Fabiato A, Rubin R P
Biochem J. 1986 Feb 1;233(3):929-32. doi: 10.1042/bj2330929.
Accumulating evidence suggests that the increase in cytosolic Ca2+ induced by receptor agonists is mediated by inositol 1,4,5-trisphosphate, a product of phospholipase C-mediated breakdown of phosphatidylinositol 4,5-bisphosphate. The present study employs inositol tris[32P]phosphate to demonstrate a specific receptor binding site in a microsomal fraction of rat liver.
越来越多的证据表明,受体激动剂诱导的胞质Ca2+增加是由肌醇1,4,5-三磷酸介导的,肌醇1,4,5-三磷酸是磷脂酶C介导的磷脂酰肌醇4,5-二磷酸分解产物。本研究使用肌醇三[32P]磷酸来证明大鼠肝脏微粒体部分存在特异性受体结合位点。