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Mutations in SPATA5 Are Associated with Microcephaly, Intellectual Disability, Seizures, and Hearing Loss

2015; Elsevier BV; Volume: 97; Issue: 3 Linguagem: Inglês

10.1016/j.ajhg.2015.07.014

1537-6605

Akemi Tanaka, Megan T. Cho, Francisca Millan, Jane Juusola, Kyle Retterer, Charuta Joshi, Dmitriy Niyazov, Adolfo D. Garnica, Edward S. Gratz, Matthew A. Deardorff, Alisha Wilkins, Xilma R. Ortiz‐González, Katherine D. Mathews, Karin Panzer, Eva H. Brilstra, Koen L.I. van Gassen, Catharina M.L. Volker‐Touw, Ellen van Binsbergen, Nara Sobreira, Ada Hamosh, Dianalee McKnight, Kristin G. Monaghan, Wendy K. Chung,

Genetics and Neurodevelopmental Disorders

Using whole-exome sequencing, we have identified in ten families 14 individuals with microcephaly, developmental delay, intellectual disability, hypotonia, spasticity, seizures, sensorineural hearing loss, cortical visual impairment, and rare autosomal-recessive predicted pathogenic variants in spermatogenesis-associated protein 5 (SPATA5). SPATA5 encodes a ubiquitously expressed member of the ATPase associated with diverse activities (AAA) protein family and is involved in mitochondrial morphogenesis during early spermatogenesis. It might also play a role in post-translational modification during cell differentiation in neuronal development. Mutations in SPATA5 might affect brain development and function, resulting in microcephaly, developmental delay, and intellectual disability.