Characterization of three novel delta chain hemoglobin variants and two delta-thalassemia alleles

Hemoglobin
Hannes FrischknechtJ S Waye

Abstract

We report the characterization of five novel delta-globin gene mutations detected during routine screening for thalassemia. Three missense mutations were identified, resulting in the following delta chain hemoglobin (Hb) variants: Hb A(2)-Acacias [delta4 (ACT>AGT), Thr-->Ser, HBD c.14C>G], Hb A(2)-Toronto [delta74 (GGC>GAC), Gly-->Asp, HBD c.224G>A], and Hb A(2)-Calgary [delta99 (GAT>GGT), Asp-->Gly, HBD c.299A>G]. Two other mutations most likely result in delta(0)-thalassemia (delta(0)-thal). One mutation altered the translation initiation codon from ATG to ATA (HBD c.3G>A), and another changed the canonical splice donor sequence of IVS-II from GT to AT (HBD C.315+1G>A).

References

May 5, 1982·Journal of Molecular Biology·J Kyte, R F Doolittle

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Citations

Dec 12, 2012·Hemoglobin·Na LiuDong-Zhi Li

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