The main component of microfibrils is a glycoprotein called fibrillin.

这些微丝的主要成分是一种糖蛋，叫做原蛋。

In addition to being part of microfibrils, fibrillin also regulates tissue growth.

原蛋构成微丝之外，还能调节组织生长。

The FBN1 gene encodes Fibrillin-1 protein, one of three fibrillin subtypes.

FBN1基因编码三种原蛋之一的原蛋1。

Marfan syndrome is caused by mutations in a gene called FBN1, or fibrillin 1, on chromosome 15.

马方综合征是由于15号染色体上FBN1（原蛋1）基因突变所致。