Alpha globin is an alias for the gene, Hemoglobin subunit alpha 1, in humans. Other names include: Hemoglobin subunit alpha; Alpha-globin; Hemoglobin alpha chain; HBA-T3; hemoglobin, alpha 1. The encoded protein has an amino acid length of 142 and a mass of 15.3 kDa. Alpha globin is a member of the Globin family. This gene shares homology with other species, including: Mouse, Rat, Frog.