ISSN : 2146-3123
E-ISSN : 2146-3131

Novel Founder Mutation in FANCA Gene (c.3446_3449dupCCCT) Among Romani Patients from the Balkan Region
Marija Dimishkovska1, Vjosa Mulliqi Kotori2, Zoran Gucev3, Svetlana Kocheva3, Momir Polenakovic1, Dijana Plaseska-Karanfilska1
1Research Centre for Genetic Engineering and Biotechnology “Georgi D. Efremov”, Macedonian Academy of Science and Arts, Skopje, Macedonia
2Department of Endocrinology, Pediatric Clinic, University Clinical Center, Prishtina, Republic of Kosovo
3Department of Pediatrics, St. Cyril and Methodius University, Skopje, Macedonia
DOI : 10.4274/balkanmedj.2017.0618

Abstract

Background: Fanconi anemia is a rare autosomal recessive or X-linked disorder characterised by clinical and genetic heterogeneity. Most fanconi anemia patients harbour homozygous or double heterozygous mutations in the FANCA (60-65%), FANCC (10-15%), FANCG (~10%) or FANCD2 (3-6%) genes. We have already reported the FANCA variant c.190–256_283+1680del2040dupC as a founder mutation among Macedonian fanconi anemia patients of Gypsy-like ethnic origin. Here, we present a novel FANCA mutation in two patients from Macedonia and Kosovo.
Case Report: The novel FANCA mutation c.3446_3449dupCCCT was identified in two fanconi anemia patients with Romany ethnicity; a 2-year-old girl from Macedonia who is a compound heterozygote for a previously reported FANCA c.190-256_283+1680del2040dupC and the novel mutation and a 10-year-old girl from Kosovo who is a homozygote for the novel FANCA c.3446_3449dupCCCT mutation. The novel mutation is located in exon 35 in the FAAP20-binding domain which plays a crucial role in the FANCA-FAAP20 interaction and is required for integrity of the fanconi anemia pathway.
Conclusion: The finding of the FANCA c.3446_3449dupCCCT mutation in two unrelated FA patients with Romani ethnicity from Macedonia and Kosovo suggests it is a founder mutation in the Romani population living in the Balkan region.

Keywords : Fanconi anemia, mutation, Balkan region
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