Four novel ARSA gene mutations with pathogenic impacts on metachromatic leukodystrophy: a bioinformatics approach to predict pathogenic mutations.

Abstract:

:Metachromatic leukodystrophy (MLD) disorder is a rare lysosomal storage disorder that leads to severe neurological symptoms and an early death. MLD occurs due to the deficiency of enzyme arylsulfatase A (ARSA) in leukocytes, and patients with MLD excrete sulfatide in their urine. In this study, the ARSA gene in 12 non-consanguineous MLD patients and 40 healthy individuals was examined using polymerase chain reaction sequencing. Furthermore, the structural and functional effects of new mutations on ARSA were analyzed using SIFT (sorting intolerant from tolerant), I-Mutant 2, and PolyPhen bioinformatics software. Here, 4 new pathogenic homozygous mutations c.585G>T, c.661T>A, c.849C>G, and c.911A>G were detected. The consequence of this study has extended the genotypic spectrum of MLD patients, paving way to a more effective method for carrier detection and genetic counseling.

journal_name

Ther Clin Risk Manag

authors

Dehghan Manshadi M,Kamalidehghan B,Aryani O,Khalili E,Dadgar S,Tondar M,Ahmadipour F,Yong Meng G,Houshmand M

doi

10.2147/TCRM.S119967

subject

Has Abstract

pub_date

2017-06-16 00:00:00

pages

725-731

eissn

1176-6336

issn

1178-203X

pii

tcrm-13-725

journal_volume

13

pub_type

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