What is "norrin"

n. (context biochemistry English) A protein that in humans is encoded by the NDP gene, mutations in which are associated with Norrie disease.

Norrin, also known as Norrie disease protein or X-linked exudative vitreoretinopathy 2 protein (EVR2) is a protein that in humans is encoded by the NDP gene. Mutations in the NDP gene are associated with the Norrie disease.