CDH17 and nervous system disorder: Cadherins play an important role in the morphogenesis and functional differentiation of the nervous system (Redies et al., 1993, 2011; Redies, 2000; Takeichi, 2007; Barnes et al., 2010; Price, 2012) and in nervous system diseases (Agiostratidou et al., 2007; Price, 2012; Redies et al., 2012).