Article
Vascular development in the retina and inner ear: control by Norrin and Frizzled-4, a high-affinity ligand-receptor pair.
Cell - 19 Mar 2004
Xu Qiang, Wang Yanshu, Dabdoub Alain, Smallwood Philip M, Williams John, Woods Chad, Kelley Matthew W, Jiang Li, Tasman William, Zhang Kang, Nathans Jeremy
Abstract excerpt
Incomplete retinal vascularization occurs in both Norrie disease and familial exudative vitreoretinopathy (FEVR). Norrin, the protein product of the Norrie disease gene, is a secreted protein of unknown biochemical function. One form of FEVR is caused by defects in Frizzled-4 (Fz4), a presumptive Wnt receptor. We show here that Norrin and Fz4 function as a ligand-receptor pair based on (1) the similarity in...
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