A Novel Atrx Mutation Presenting with Intellectual Disability and Severe Kyphoscoliosis


Altiner Ş., Raymond L.

FETAL AND PEDIATRIC PATHOLOGY, cilt.39, sa.6, ss.539-543, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 6
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1080/15513815.2019.1675833
  • Dergi Adı: FETAL AND PEDIATRIC PATHOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, EMBASE, MEDLINE
  • Sayfa Sayıları: ss.539-543
  • Ankara Üniversitesi Adresli: Evet

Özet

Background: ATR-X syndrome is an X-linked clinical condition usually associated with profound intellectual disability, facial dysmorphism and alpha-thalassemia. The syndrome is clinically heterogeneous with a broad phenotypic spectrum. Although, alpha-thalassaemia is commonly present, it may not manifest in some patients. Case report: A novel missence mutation (NM_000489: ATRX; c.6130C > T; p.Leu2044Phe) was detected in the ATR-X gene in two male siblings with severe intellectual disability, dysmorphic facial appearance and skeletal anomalies. Severe kyphoscoliosis was the main finding. Hematologic findings, one of the well-known clinical entities, were not present. Conclusion: The missense mutation we have described in our patients has not been previously reported. This finding enriches mutation spectrum of ATRX (OMIM #300032) gene. This missense mutation, which is associated with ID and kyphoscoliosis and without alpha-thalassemia, contributes to genotype-phenotype correlation of the ATR-X spectrum. This case report provides further evidence that reverse genetics is a useful approach in diagnostic process of syndromic patients in adulthood.