Analysis of variant of GLI3 gene in a child featuring autosomal dominant Pallister-Hall syndrome / 中华医学遗传学杂志

ABSTRACT

OBJECTIVE@#To explore the clinical and genetic characteristics of a child with Pallister-Hall syndrome (PHS).@*METHODS@#DNA was extracted from peripheral blood sample from the child and subjected to whole exome sequencing. Suspected variants were verified by Sanger sequencing of his family members.@*RESULTS@#Genetic testing revealed that the child has harbored a heterozygous c.3320_3330delGGTACGAGCAG (p.G1107Afs×18) variant of the GLI3 gene. Neither parent was found to carry the same variant.@*CONCLUSION@#The c.3320_3330delGGTACGAGCAG (p.G1107Afs×18) frameshift variant of the GLI3 gene probably underlay the pathogenesis of PHS in this child. Genetic testing should be considered for patients featuring hypothalamic hamartoma and central polydactyly.