原肌球蛋白增加细丝的结构刚性。
用电镜负染技术观察角蛋白细丝并测定其直径为80～100A。
Under negative staining electron microscopy, the keratin was a filament with a diameter of 80-100A.
腺样囊性癌；神经细丝酸性蛋白；肌动蛋白；免疫电镜。
Adenoid cystic carcinoma; Glial fibrillary acidic protEIn; Muscle actin; Immunoelectron microscopy.
以单体、球型肌动蛋白的形式出现，为一种球状蛋白质；在活体细胞内以聚合物、丝肌动蛋白的形式出现，像两串彼此缠绕拧成一条细丝的珠子。
It occurs as a monomer, G-actin, a globular protein, and in living cells as a polymer, F-actin, which resembles two strings of beads twisted around each other into thin filaments.
主要观察指标：神经细丝的磷酸化程度及糖原合酶激酶3、细胞周期依赖性蛋白激酶5的酶活性。
MAIN OUTCOME MEASURES: The degree of NF phosphorylation and the activities of GSK-3 and CDK-5 were mainly observed.
主要观察指标：神经细丝的磷酸化程度及糖原合酶激酶3、细胞周期依赖性蛋白激酶5的酶活性。
MAIN OUTCOME MEASURES: The degree of NF phosphorylation and the activities of GSK-3 and CDK-5 were mainly observed.
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