Expanding the spectrum of clinical severity of AICA-ribosiduria: Report of two siblings with mild phenotype caused by a novel pathogenic variant in ATIC gene.

Abstract excerpt

5-Amino-4-imidazolecarboxamide-ribosiduria (AICA-ribosiduria) is an extremely rare inborn error of purine biosynthesis metabolism caused by pathogenic variants in ATIC gene that encodes a protein catalyzing the last steps of the de novo purine biosynthesis. To date, only six cases have been reported presenting a severe phenotype characterized by coarse facies and variable dysmorphic features, intrauterine and...

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