CDK5 and schizophrenia: Other genetic animal models for schizophrenia concern mice lacking the protein kinase C interacting protein/histidine triad nucleotide binding protein 1 (PKCI/HINT1) [101, 102], brain-derived neurotrophic factor (BDNF) [103-105], neural cell adhesion molecule (Ncam) 180 [106], cyclin-dependent kinase 5 (Cdk5) [107], neural PAS domain protein 3 (NPAS3) [108] or LIM homeobox protein 5 (Lhx5) [109], mice carrying a mutation in proline dehydrogenase 2 (PRODH2) [110], Disrupted-in-Schizophrenia-1 (DISC1) [111, 112] or neuregulin-1 [113] as well as the Chakragati (Ckr) mouse [114].