Abstract
An elevated HbA(2) (α2δ2) level (>3.5%) is a well-established diagnostic test for heterozygous β-thalassemia. Mutations in the δ-globin gene can cause decreased expression of HbA(2), resulting in heterozygous β-thalassemia with normal levels of HbA(2). In this report, we describe a novel missense mutation in δ-globin (HBD: c.323G>A, Gly>Asp) in an Indian family with heterozygous β-thalassemia with normal HbA(2) levels.
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