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an abnormal Hb with a single β chain substitution, molecular formula α2Aβ226Glu→Lys, common in Southeast Asia, especially Thailand; heterozygotes are asymptomatic with 35-45% Hb E; homozygotes have mild to moderate hemolytic anemia with 90-100% Hb E and the remainder Hb F.
A hemoglobin molecule in which lysine is substituted for glutamic acid at the 26th position of the beta chain. This variation is found most often in those of Southeast Asian ancestry.
See also: hemoglobin