Homozygosity for FARSB mutation leads to Phe-tRNA synthetase-related disease of growth restriction, brain calcification, and interstitial lung disease

Fahad AL Zadjali, Aida Al-Yahyaee, Maryam Al-Nabhani, Saif Al-Mubaihsi, Arunodaya Gujjar, Sameer Raniga, Almundher Al-Maawali

Research output: Contribution to journalArticle

Abstract

Aminoacyl-tRNA synthetases (ARSs) canonical function is to conjugate specific amino acids to cognate tRNA that are required for the first step of protein synthesis. Genetic mutations that cause dysfunction or absence of ARSs result in various neurodevelopmental disorders. The human phenylalanine-tRNA synthetase (PheRS) is a tetrameric protein made of two subunits coded by FARSA gene and two subunits coded by FARSB gene. We describe eight affected individuals from an extended family with a multisystemic recessive disease manifest as a significant growth restriction, brain calcifications, and interstitial lung disease. Genome-wide linkage analysis and whole exome sequencing identified homozygosity for a FARSB mutation (NM_005687.4:c.853G > A:p.Glu285Lys) that co-segregate with the disease and likely cause loss-of-function. This study further implicates FARSB mutations in a multisystem, recessive, neurodevelopmental phenotype that share clinical features with the previously known aminoacyl-tRNA synthetase-related diseases.

Original languageEnglish
Pages (from-to)1355-1359
Number of pages5
JournalHuman Mutation
Volume39
Issue number10
DOIs
Publication statusPublished - Oct 1 2018

Fingerprint

Amino Acyl-tRNA Synthetases
Interstitial Lung Diseases
Mutation
Brain
Growth
Exome
Transfer RNA
Phenylalanine
Genes
Proteins
Genome
Phenotype
Amino Acids

Keywords

  • aminoacyl-tRNA synthetase
  • basal ganglia calcification
  • developmental syndrome
  • FARSB
  • phenylalanyl-tRNA synthetase

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Homozygosity for FARSB mutation leads to Phe-tRNA synthetase-related disease of growth restriction, brain calcification, and interstitial lung disease. / AL Zadjali, Fahad; Al-Yahyaee, Aida; Al-Nabhani, Maryam; Al-Mubaihsi, Saif; Gujjar, Arunodaya; Raniga, Sameer; Al-Maawali, Almundher.

In: Human Mutation, Vol. 39, No. 10, 01.10.2018, p. 1355-1359.

Research output: Contribution to journalArticle

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