Pro307Ser polymorphism is adjacent to an Asn-Pro-Phe or NPF motif, which may mediate the interaction of stonin2 with intersectin and Eps15, as well as the haplotype C-C of Ser307Pro and Ala851Ser polymorphisms (Pro307-Ala851), which affects the stonin2 function that mediates the etiopathogenesis of schizophrenia [33]. Here, EPS15 is linked to schizophrenia.