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Schizophrenia risk conferred by rare protein-truncating variants is conserved across diverse human populations

Liu, Dongjing, Meyer, Dara, Fennessy, Brian, Feng, Claudia, Cheng, Esther, Johnson, Jessica S., Park, You Jeong, Rieder, Marysia-Kolbe, Ascolillo, Steven, de Pins, Agathe, Dobbyn, Amanda, Lebovitch, Dannielle, Moya, Emily, Nguyen, Tan-Hoang, Wilkins, Lillian, Hassan, Arsalan, Burdick, Katherine E., Buxbaum, Joseph D., Domenici, Enrico, Frangou, Sophia, Hartmann, Annette M., Malhotra, Dheeraj, Pato, Carlos N., Pato, Michele T., Ressler, Kerry, Roussos, Panos, Rujescu, Dan, Arango, Celso, Bertolino, Alessandro, Blasi, Giuseppe, Bocchio-Chiavetto, Luisella, Campion, Dominique, Carr, Vaughan, Fullerton, Janice M., Gennarelli, Massimo, Gonzalez-Penas, Javier, Levinson, Douglas F., Mowry, Bryan, Nimgaokar, Vishwajit L., Pergola, Guilio, Rampino, Antonio, Cervilla, Jorge A., Rivera, Margarita, Schwab, Sibylle, Wildenauer, Dieter B., Daly, Mark, Neale, Benjamin, Singh, Tarjinder, O'Donovan, Michael C. ORCID:, Owen, Michael J. ORCID:, Walters, James T. ORCID:, Ayub, Muhammad, Malhotra, Anil K., Lencz, Todd, Sullivan, Patrick F., Sklar, Pamela, Stahl, Eli A., Huckins, Laura M. and Charney, Alexander W. 2023. Schizophrenia risk conferred by rare protein-truncating variants is conserved across diverse human populations. Nature Genetics 55 , pp. 369-376. 10.1038/s41588-023-01305-1

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Schizophrenia (SCZ) is a chronic mental illness and among the most debilitating conditions encountered in medical practice. A recent landmark SCZ study of the protein-coding regions of the genome identified a causal role for ten genes and a concentration of rare variant signals in evolutionarily constrained genes1. This recent study—and most other large-scale human genetics studies—was mainly composed of individuals of European (EUR) ancestry, and the generalizability of the findings in non-EUR populations remains unclear. To address this gap, we designed a custom sequencing panel of 161 genes selected based on the current knowledge of SCZ genetics and sequenced a new cohort of 11,580 SCZ cases and 10,555 controls of diverse ancestries. Replicating earlier work, we found that cases carried a significantly higher burden of rare protein-truncating variants (PTVs) among evolutionarily constrained genes (odds ratio = 1.48; P = 5.4 × 10−6). In meta-analyses with existing datasets totaling up to 35,828 cases and 107,877 controls, this excess burden was largely consistent across five ancestral populations. Two genes (SRRM2 and AKAP11) were newly implicated as SCZ risk genes, and one gene (PCLO) was identified as shared by individuals with SCZ and those with autism. Overall, our results lend robust support to the rare allelic spectrum of the genetic architecture of SCZ being conserved across diverse human populations.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Publisher: Nature Research
ISSN: 1061-4036
Date of First Compliant Deposit: 29 November 2022
Date of Acceptance: 23 January 2023
Last Modified: 03 May 2023 07:35

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