A patient with POLA1 splice variant expands the yet evolving phenotype of Van Esch O'Driscoll syndrome.
2021
Abstract Van Esch-O’Driscoll syndrome (VEODS) is a rare cause of syndromic X-linked intellectual disability characterised by short stature, microcephaly, variable degree of intellectual disability, and hypogonadotropic hypogonadism. To date, heterozygous hypomorphic variants in the gene encoding the DNA Polymerase α subunit, POLA1, have been observed in nine patients from five unrelated families with VEODS. We report a three-year-old child with VEODS having borderline intellectual disability due to a novel splice site variant causing exon 6 skipping and reduced POLA1 expression.
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