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肌动蛋白组成了一个在所有真核生物中存在的高度保守的蛋白族,这些蛋白主要以单体聚合形成微丝体的形式存在于细胞的胞浆中。肌动蛋白的微丝体参与各种细胞功能,也在形成束状微绒毛、硬纤毛和其它细胞结构中起作用。荧光显微镜观察发现肌动蛋白存在于童虫表面。免疫荧光技术证实肌动蛋
Actin constitutes a highly conserved family of proteins found in all eukaryotes that predominate in the cytoplasm of cells in the form of monomers that polymerize to form filaments. Actin filaments are involved in a variety of cellular functions and also play a role in the formation of bundle-like microvilli, hard cilia and other cellular structures. Fluorescence microscopy found that actin is present on the surface of the sperm. Immunofluorescence confirmed actin