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J Pediatr Genet
DOI: 10.1055/s-0042-1744482
Case-Based Review

Homozygous TBCE Gene Mutation c.155-166del in a Libyan Patient with Sanjad-Sakati Syndrome: Same Gene Mutation Responsible in All Arab Ethnic Patients

Millad Ghawil 
1   Pediatric Department, Faculty of Medicine, University of Tripoli, Tripoli University Hospital, Tripoli, Libya
,
Nesrin Ben Omar
2   Division of Endocrinology, Pediatric Department, Faculty of Medicine, Tripoli University Hospital, University of Tripoli, Tripoli, Libya
,
Milad Doggah
1   Pediatric Department, Faculty of Medicine, University of Tripoli, Tripoli University Hospital, Tripoli, Libya
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Abstract

Sanjad-Sakati syndrome (SSS) (Online Mendelian Inheritance in Man 241410) is a rare autosomal recessive disorder also known as hypoparathyroidism-retardation-dysmorphism syndrome. It is characterized by congenital hypoparathyroidism, growth retardation, typical facial features, and variable developmental delay. SSS is caused due to mutations of the tubulin-specific chaperone E (TBCE) gene. In this article, we reported the first Libyan child of first parental consanguinity with SSS and whole exome sequencing results identified the homozygous missense variant c.155–166del and it encodes p.(Ser52-Gly55del) (chr1:235564867) located in the TBCE gene, chromosome 1q42.3. In addition, the patient was also diagnosed with congenital hypothyroidism and presented with acquired bilateral cataract in the first year of life. Most likely, all Arab patients with SSS syndrome have the same TBCE gene mutation.

Keywords

Sanjad-Sakati syndrome - hypoparathyroidism-retardation-dysmorphism syndrome - congenital hypothyroidism - cataract


Publication History

Received: 17 November 2021

Accepted: 15 February 2022

Article published online:
15 June 2022

© 2022. Thieme. All rights reserved.

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