Disrupted in schizophrenia 1 protein (DISC1)

Disrupted in schizophrenia 1 protein (DISC1) is an 854-amino acid scaffold protein essential for the assembly and regulation of core neuronal signaling pathways[1]. DISC1 integrates protein-protein interaction networks that regulate cell proliferation, differentiation, migration, and synapse formation during both embryonic and adult neurogenesis[1][2][4]. It organizes signaling cascades such as Akt/mTOR and GSK3β/β-catenin, interacting with key partners including PDE4B, GSK3β, girdin, NDEL1, LIS1, FEZ1, MAP1A, and ATF4[2][4][5]. DISC1 acts as both an inhibitor and activator of translation in response to cellular conditions, particularly oxidative stress, and also binds metals such as arsenic via its C-terminal cysteine motif[1]. Mutations, deletions, or aggregation of DISC1—especially in the C-terminal region—have been strongly implicated in increased risk for schizophrenia, bipolar disorder, major depression, and cognitive disorders by disrupting neuronal development and synaptic connectivity[1][3][5]. Although DISC1 is a compelling target for understanding and potentially mitigating psychiatric and neurodevelopmental illness, no drugs specifically target it clinically and therapeutic intervention presents major safety challenges due to its central role in the CNS[3][5].

Other names

Disrupted in schizophrenia 1 proteinDISC1KIAA0457C1orf136SCZD9

N/A – No clinically approved drugs target DISC1. DISC1 itself acts primarily as a molecular scaffold modulating signaling pathways, enzyme activity, and protein-protein interactions[1][5].