This family consists of several mouse and human neugrin proteins. Neugrin and m-neugrin are mainly expressed in neurons in the nervous system, and are thought to play an important role in the process of neuronal differentiation [1].

1: Two novel genes, human neugrin and mouse m-neugrin, are upregulated with neuronal differentiation in neuroblastoma cells. Ishigaki S, Niwa J, Yoshihara T, Mitsuma N, Doyu M, Sobue G; Biochem Biophys Res Commun 2000;279:526-533. PMID:11118320