Neutra M R, Schaeffer S F
J Cell Biol. 1977 Sep;74(3):983-91. doi: 10.1083/jcb.74.3.983.
In primate goblet cells, the membranes of adjacent mucous granules from contact areas which appear as extensive pentalaminar fusion sites in thin sections. In freeze-fracture replicas, the same membrane areas are smooth, except for a few 6-8-nm particles which adhere to the E face. These protein-poor membrane interaction sites are relatively long-lived, and it is proposed that further stimulus may be required to trigger membrane fission.
在灵长类动物的杯状细胞中,相邻黏液颗粒的膜在接触区域相连,在超薄切片中这些接触区域表现为广泛的五片层融合位点。在冷冻断裂复制品中,相同的膜区域是光滑的,除了一些附着在E面的6 - 8纳米颗粒。这些蛋白质含量低的膜相互作用位点相对持久,有人提出可能需要进一步的刺激来触发膜裂变。