Novel FAM126A mutations in hypomyelination and congenital cataract disease

M. Traverso, S. Assereto, E. Gazzerro, S. Savasta, E. M. Abdalla, A. Rossi, S. Baldassari, F. Fruscione, G. Ruffinazzi, M. R. Fassad, A. El Beheiry, C. Minetti, F. Zara, R. Biancheri

Research output: Contribution to journalArticle

Abstract

Hypomyelination and congenital cataract (HCC, OMIM #610532) is a rare autosomal recessive disorder due to FAM126A mutations characterized by congenital cataract, progressive neurologic impairment, and myelin deficiency in the central and peripheral nervous system. We have identified two novel mutations in three affected members of two unrelated families. Two sibs harbouring a microdeletion causing a premature stop in the protein showed the classical clinical and neuroradiologic HCC picture. The third patient carrying a missense mutation showed a relatively mild clinical picture without peripheral neuropathy. A residual amount of hyccin protein in primary fibroblasts was demonstrated by functional studies indicating that missense mutations are likely to have less detrimental effects if compared with splice-site mutations or deletions that cause the full-blown HCC phenotype, including peripheral nervous system involvement.

Original languageEnglish
Pages (from-to)369-372
Number of pages4
JournalBiochemical and Biophysical Research Communications
Volume439
Issue number3
DOIs
Publication statusPublished - Sep 27 2013

Keywords

  • Cataract
  • FAM126A gene
  • Myelination
  • White matter disorder

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Cell Biology
  • Molecular Biology

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  • Cite this

    Traverso, M., Assereto, S., Gazzerro, E., Savasta, S., Abdalla, E. M., Rossi, A., Baldassari, S., Fruscione, F., Ruffinazzi, G., Fassad, M. R., El Beheiry, A., Minetti, C., Zara, F., & Biancheri, R. (2013). Novel FAM126A mutations in hypomyelination and congenital cataract disease. Biochemical and Biophysical Research Communications, 439(3), 369-372. https://doi.org/10.1016/j.bbrc.2013.08.077