Nidogen-1

Nidogen-1 (NID-1), formerly known as entactin, is a protein that in humans is encoded by the "NID1" gene. Both nidogen-1 and nidogen-2 are essential components of the basement membrane alongside other components such as type IV collagen, proteoglycans (heparan sulfate and glycosaminoglycans), laminin and fibronectin.
Function.
Nidogen-1 is a member of the nidogen family of basement membrane glycoproteins. The protein interacts with several other components of basement membranes. Structurally it (along with perlecan) connects the networks formed by collagens and laminins to each other. It may also play a role in cell interactions with the extracellular matrix.
Clinical significance.
Mutations in "NID1" cause autosomal dominant Dandy–Walker malformation with occipital encephalocele (ADDWOC).
Interactions.
Nidogen-1 has been shown to interact with FBLN1.