Identification of a Novel Arylsulfatase B Gene Mutation in Three Unrelated Iranian Mucopolysaccharidosis Type-VI Patients with Different Phenotype Severity

Authors
Nayerossadat Nouri
Nargesossadat Nouri
Omid Aryani
Behnam Kamalidehghan
Massoud Houshmand
10.6091/ibj.1049.2012
Abstract
Background: Mucopolysaccharidosis type-VI (MPS-VI), which is inherited as an autosomal recessive trait, results from the deficiency of N-acetylgalactosamine 4-sulfatase (arylsulfatase B) activity and the lysosomal accumulation of dermatan sulfate. In this study, ARSB mutation analysis was performed on three unrelated patients who were originally from the West Azerbaijan province of Iran. Methods: After PCR and direct DNA sequencing, DNA extraction was performed. Results: Sequencing analysis revealed a novel homozygous missense mutation in the ARSB gene at c.1457A>G [p. D486V] in three unrelated Iranian MPS-VI patients with different phenotype severity. Conclusion: The mutation type in three patients was the same probably, because of a foundation effect on their population.
Keywords
Mucopolysaccharidosis type-VI (MPS-VI)
Mutation
Iran