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纤维连接蛋白(fibronectin,简称Fn)是指在结构上类似,免疫原性相同的一组糖蛋白。它主要存在于细胞的表面、细胞外液、结缔组织和大多数基底膜中。Fn是连接细胞与细胞外纤维和基质的一种介质。
Fibronectin (Fn) refers to a group of glycoproteins that are structurally similar and have the same immunogenicity. It is mainly found on the surface of cells, extracellular fluid, connective tissue and most of the basement membrane. Fn is a medium that connects cells with extracellular fibers and matrix.