A rare gene variation cap +1 (A>C) (HBB: c. -50A>C) associated with codon 5 (-CT) (HBB: c.17_18delCT) mutation in Syrian family.

Abstract:

BACKGROUND:CAP+1 [A>C] (HBB:c.-50A>C) is a rare silent β-thalassemia (β-thal) mutation. Carrier individuals of this mutation show borderline hemoglobin (Hb), mean corpuscular volume (MCV) and Hb A2 levels. This mutation was previously reported in combination with different β-thalassemia mutations, leading to variable phenotypes. CASE PRESENTATION:Here, we describe for the first time the combination of silent CAP+1 [A>C] (HBB:c.-50A>C) mutation with β0 codon 5 [-CT] (HBB:c.17_18delCT) mutation in a Syrian proband, leading to beta thalassemia intermedia (TI). CONCLUSIONS:The compound heterozygotes of the silent CAP+1 (A>C) together with another severe beta gene mutation, are phenotypically severe enough to present at an early age and require appropriate therapeutic modalities.

journal_name

Mol Genet Genomic Med

authors

Murad H,Moassas F,Fakseh NAL

doi

10.1002/mgg3.1602

subject

Has Abstract

pub_date

2021-01-24 00:00:00

pages

e1602

issn

2324-9269

pub_type

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