Hb CAPA OR α294(G1)ASP→GLYβ2, A Mildly Unstable Variant with an A↠G (Gac↠Ggc) Mutation in Cown 94 of the α1-Globin Gene

Abstract
A 28-year-old female from the city of Kars in Turkey was treated for a chronic iron deficiency anemia with oral iron. During the clinical evaluation a slowly moving hemoglobin (Hb) variant was detected which migrated about like Hb F in alkaline electrophoresis and like Hb S in agar electrophoresis at pH 6.2. The variant appeared mildly unstable in a heat denaturation test (60°C) but the isopropanol stability test was questionably positive (for methodology, see Ref. 1).