1. Exome Analysis Reveals Novel Missense and Deletion Variants in the CC2D2A Gene as Causative of Joubert Syndrome
- Author
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Rute Luísa Cabrita Pinto, Silvia Viaggi, Edoardo Canale, Marina Martinez Popple, Valeria Capra, Giuseppina Conteduca, Barbara Testa, Domenico Coviello, and Angela Elvira Covone
- Subjects
Genetics ,Genetics (clinical) - Abstract
The CC2D2A gene is essential for primary cilia formation, and its disruption has been associated with Joubert Syndrome-9 (JBTS9), a ciliopathy with typical neurodevelopmental features. Here, we describe an Italian pediatric patient with typical features of Joubert Syndrome (JBTS): “Molar Tooth Sign”, global developmental delay, nystagmus, mild hypotonia, and oculomotor apraxia. Whole exome sequencing and segregation analysis identified in our infant patient a novel heterozygous germline missense variant c.3626C > T; p.(Pro1209Leu) inherited from the father and a novel 7.16 kb deletion inherited from the mother. To the best of our knowledge, this is the first report showing a novel missense and deletion variant involving exon 30 of the CC2D2A gene.
- Published
- 2023
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