ULTRASTRUCTURAL LOCALIZATION OF ADENYL CYCLASE ACTIVITY IN SHEEP PARATHYROID GLAND
1979 年 12 巻 4 号 p. 356-360
詳細
1979 年 12 巻 4 号 p. 356-360
The distribution of adenyl cyclase in sheep parathyroid gland was investigated using electron microscopy. The reaction products of the enzyme were located in the plasma membrane in intercellular spaces between the gland cells, confined exclusively to the external cell surface. The products were more abundant on the surface of the intricately interdigitated cells than on that of the relatively straighted cells. Secretory granules were mainly located near the plasma membrane which bordered the intercellular spaces. The functional significance of the enzyme localization in the parathyroid gland cells is discussed in relation to findings of other authors.
