Biological Activity

FBLN1 (fibulin 1) gene encodes an extracellular matrix and plasma protein th at is rich in cysteine and binds to calium. Alternative splicing of this protein produces four isoforms, A-D. It is found to be associated with fibronectin (FN). It inhibits the ability of FN to promote cell adhesion and motility by suppressing the activation of extracellular signal regulated kinase (ERK) and phosphorylation of myosin heavy chain. By inhibiting cell motility, it acts as a suppressor of tumor invasion. It serves as a potential marker for renal impairment.