Fibronectin is an adhesive extracellular matrix glycoprotein,it s primary gene transcription is alterna-tively spliced in three regions,designated EDA,EDB and IIICS.

• 纤维连接蛋白是广泛存在于细胞外基质、血浆及其它体液中一种糖蛋白,其基因在三个区域进行可变剪接,分别为EDA、EDB和IIICS。