关键词: POLR3A Wiedemann-Rautenstrauch syndrome lipoatrophy neuroregression progeria

Mesh : Alleles Female Fetal Growth Retardation / genetics mortality pathology Genetic Predisposition to Disease Humans Infant Infant Mortality Infant, Newborn Male Mutation / genetics Phenotype Progeria / genetics mortality pathology RNA Polymerase III / genetics Whole Exome Sequencing

来  源:   DOI:10.1002/ajmg.a.62115   PDF(Sci-hub)

Abstract:
Wiedemann-Rautenstrauch syndrome (WRS; MIM# 264090) is a rare neonatal progeroid disorder resulting from biallelic pathogenic variants in the POLR3A. It is an autosomal recessive condition characterized by growth retardation, lipoatrophy, a distinctive face, sparse scalp hair, and dental anomalies. Till date, 19 families are reported with WRS due to variants in POLR3A. Here, we describe an 18 months old male child with biallelic c.2005C>T p.(Arg669Ter) and c.1771-7C>G variant in heterozygous state identified by exome sequencing in POLR3A leading to WRS phenotype. The variant c.1771-7C>G was earlier found to be associated with hereditary spastic ataxia. We emphasize on the phenotype in an Indian patient with WRS.
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