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A Novel Mutation in the Als2 Gene in an Iranian Kurdish Family With Juvenile Amyotrophic Lateral Sclerosis Publisher Pubmed



Daneshmandpour Y1, 2 ; Bahmanpour Z1 ; Kazeminasab S1 ; Aghaei Moghadam E3 ; Alehabib E4 ; Chapi M4 ; Tafakhori A5 ; Aghaei N6 ; Darvish H7, 8 ; Emamalizadeh B1, 2
Authors
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Authors Affiliations
  1. 1. Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
  2. 2. Cytogene Genetic Diagnostic Laboratory, Tabriz, Iran
  3. 3. Department of Pediatrics, School of Medicine, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  5. 5. Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
  7. 7. Neuroscience Research Center, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
  8. 8. Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran

Source: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration Published:2023


Abstract

Amyotrophic lateral sclerosis (ALS) is a rare disorder that affects both upper and lower motor neurons. Mutations in Alsin Rho Guanine Nucleotide Exchange Factor (ALS2) correlates with three similar but distinctive syndromes, including the juvenile form of ALS. An Iranian Kurdish family was involved in this study and all members were evaluated with relevant clinical guidelines. Whole exome sequencing and sanger sequencing were applied to all family members to undermine the possible genetic factors. A substitution c. 2110 C>T (p. Arg704X) identified in the ALS2 gene. Bioinformatics analysis indicated the mutation is located in the well-conserved and functional domain of the protein. This study recognized a novel mutation in the ALS2 gene in a proband with the juvenile form of ALS. To our knowledge, this is the first identified ALS2 mutation among the Iranian population. © 2022 World Federation of Neurology on behalf of the Research Group on Motor Neuron Diseases.