CIT and schizophrenia: ATF4, CIT (encoding citron), FEZ1, NDE1, PAFAH1B1 (encoding LIS1), PCNT (encoding pericentrin), PDE4D, TNIK and YWHAE (encoding 14-3-3ɛ) are thus all implicated in schizophrenia, although some of these are single studies or report modest associations that await firm replication, with some studies failing to replicate (Table 3 and references therein).