SLC1A2 and schizophrenia: EAAT2 exon9skipping is expressed in both patients with neurodegenerative disorders and normal controls and may have a role in the normal physiological control of EAAT2 levels.14, 40, 41 The EAAT2 exon9skipping variant can form a trimer when expressed alone, however, it must be co-expressed with EAAT2 or EAAT2b to form an active transporter.1, 17 In the present study, we found increased levels of EAAT2 exon9skipping mRNA at the region level in the ACC in schizophrenia (Figure 3).