Article
A new δ chain variant, Hb A2-Tunis [δ46(CD5)Gly → Glu; HBD: c.140G>A], observed in a Tunisian family in association with a compound heterozygosity for Hb C [β6(A3)Glu → Lys; HBB: c.19G>A] β(0)-thalassemia [IVS-I-1 (β143, G>A); HBB: c.92+1G>A].
Hemoglobin - 1 Jan 2014
Moumni Imen, Zorai Amine, Mahjoub Sonia, Mosbahi Ikbel, Chaouechi Dorra, Benromdhane Neila, Abbes Salem
Abstract excerpt
We describe a new δ-globin variant, Hb A2-Tunis [δ46(CD5)Gly → Glu; HBD: c.140G>A]. This hemoglobin (Hb) variant displayed a faster electrophoretic mobility than normal Hb A2 and was expressed at 3.2%. The molecular defect was characterized by DNA sequencing analysis. Hb A2-Tunis was found in a carrier of a β(0)-thalassemia (β(0)-thal) [IVS I-1 (β143, G>A); HBB: c.92 + 1G>A] and Hb C [β6(A3)Glu → Lys; HBB:...
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