期刊
AMERICAN JOURNAL OF MEDICAL GENETICS PART A
卷 185, 期 10, 页码 2863-2872出版社
WILEY
DOI: 10.1002/ajmg.a.62359
关键词
DDX23; neurodevelopment; RNA helicase
资金
- Genomic Answers for Kids program
The study presents a cohort of individuals with de novo missense alterations in the DDX23 gene, linked to a syndrome characterized by atypical neurodevelopment. The patients exhibited features including tone abnormalities, global developmental delay, facial dysmorphism, autism spectrum disorder, and seizures, along with other findings in skeletal, renal, ocular, and cardiac systems. The missense alterations occurred within a highly conserved RecA-like domain of the protein, highlighting the role of DDX23 in various human disorders.
The DEAD/DEAH box RNA helicases are a superfamily of proteins involved in the processing and transportation of RNA within the cell. A growing literature supports this family of proteins as contributing to various types of human disorders from neurodevelopmental disorders to syndromes with multiple congenital anomalies. This article presents a cohort of nine unrelated individuals with de novo missense alterations in DDX23 (Dead-Box Helicase 23). The gene is ubiquitously expressed and functions in RNA splicing, maintenance of genome stability, and the sensing of double-stranded RNA. Our cohort of patients, gathered through GeneMatcher, exhibited features including tone abnormalities, global developmental delay, facial dysmorphism, autism spectrum disorder, and seizures. Additionally, there were a variety of other findings in the skeletal, renal, ocular, and cardiac systems. The missense alterations all occurred within a highly conserved RecA-like domain of the protein, and are located within or proximal to the DEAD box sequence. The individuals presented in this article provide evidence of a syndrome related to alterations in DDX23 characterized predominantly by atypical neurodevelopment.
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