BMC nephrology · 2013
A new mutation in the gene encoding mitochondrial seryl-tRNA synthetase as a cause of HUPRA syndrome.
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Rivera Henry, Martín-Hernández Elena, Delmiro Aitor, García-Silva María Teresa, Quijada-Fraile Pilar, Muley Rafael, Arenas Joaquín, Martín Miguel A, Martínez-Azorín Francisco
Аннотация
BACKGROUND: HUPRA syndrome is a rare mitochondrial disease characterized by hyperuricemia, pulmonary hypertension, renal failure in infancy and alkalosis. This syndrome was previously described in three patients with a homozygous mutation c.1169A > G (p.D390G) in SARS2, encoding the mitochondrial seryl-tRNA synthetase.
CASE PRESENTATION: Here we report the clinical and genetic findings in a girl and her brother. Both patients were clinically diagnosed with the HUPRA syndrome. Analysis of the pedigree identified a new homozygous mutation c.1205G > A (p.R402H) in SARS2 gene. This mutation is very rare in the population and it is located at the C-terminal globular domain of the homodimeric enzyme very close to p.D390G.
CONCLUSION: Several data support that p.R402H mutation in SARS2 is a new cause of HUPRA syndrome.
CASE PRESENTATION: Here we report the clinical and genetic findings in a girl and her brother. Both patients were clinically diagnosed with the HUPRA syndrome. Analysis of the pedigree identified a new homozygous mutation c.1205G > A (p.R402H) in SARS2 gene. This mutation is very rare in the population and it is located at the C-terminal globular domain of the homodimeric enzyme very close to p.D390G.
CONCLUSION: Several data support that p.R402H mutation in SARS2 is a new cause of HUPRA syndrome.