Abstract
During a routine program of hemoglobin screening performed in the United Arab Emirates, we observed an electrophoretically fast-moving variant in a 9-month-old girl and in several members of her family. The structural determination, performed by reversed phase high performance liquid chromatography and amino acid sequencing, revealed a new variant that we named Hb A1-Ain Abu Dhabi [δ18(A16) Gly→Asp]. Its functional properties were normal.