A new familial case of Jalili syndrome caused by a novel mutation in CNNM4

Topcu V., Alp M. Y. , KEDİCİ ALP C. , Bakir A., Geylan D., Yilmazoglu M. O.

OPHTHALMIC GENETICS, vol.38, no.2, pp.161-166, 2017 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 2
  • Publication Date: 2017
  • Doi Number: 10.3109/13816810.2016.1164192
  • Title of Journal : OPHTHALMIC GENETICS
  • Page Numbers: pp.161-166
  • Keywords: CNNM4, Jalili syndrome, missense mutation, novel, CONE-ROD DYSTROPHY, AMELOGENESIS IMPERFECTA, PROTEINS


Jalili syndrome (JS) is a rare autosomal recessive disorder characterized by the combination of cone-rod dystrophy (CRD) and amelogenesis imperfecta. To date, 18 families with JS have been reported, 16 of which were found to have a mutation in CNNM4. We describe three siblings with clinical features of JS with a homozygous missense mutation in exon 4 of CNNM4, c.1781A>G (p.N594S). They demonstrated phenotypic variability in terms of ocular and dental findings. Although fundus examination and optical coherence tomography results were normal, the electroretinogram was compatible with CRD, supporting the diagnosis of JS. The dental phenotype severity also varied among the siblings.