Abstract
We report a case of α+-thalassemia (α+-thal) trait in a Chinese-Canadian family caused by a novel frameshift mutation of the α2-globin gene, specifically the duplication of a single nucleotide at amino acid codon 56 [HBA2: c.168dup]. The mutation results in substitution of a termination codon (TAA) for lysine (AAG) at amino acid position 56.
Declaration of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this article.