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  • Title: Eighth case of Li-Campeau syndrome in a Turkish patient caused by a novel pathogenic variant in UBR7 and expanding the phenotype.
    Author: Edizadeh M, Kaymakcalan H, Valilou SF, Şahin Y.
    Journal: Am J Med Genet A; 2023 May; 191(5):1465-1469. PubMed ID: 36757286.
    Abstract:
    Li-Campeau syndrome (LICAS) is an autosomal recessive disorder characterized by developmental delay, intellectual disability, genital anomalies, congenital heart defects, and dysmorphic features. LICAS is caused by biallelic pathogenic variants in the UBR7 gene, acting as an E3 ubiquitin-protein ligase. Using exome sequencing (ES), we identified a homozygous novel pathogenic splice site variation c.1185+1G>C in UBR7 in a 32-month-old male from a nonconsanguineous Turkish family with clinical features of LICAS. Sanger sequencing revealed the heterozygous state of parents for this variant and confirmed the co-segregation study. The variant may lead to the loss of function of UBR7 and is in a highly conserved residue. Bioinformatic prediction analysis using in silico algorithms supports the pathogenic effect of the splice site variant in the UBR7.
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