gamma Globin

Members of the beta-Globin Family. In Humans, two non-allelic types of gamma-Globin - A gamma and G gamma are encoded in the beta-Globin Gene cluster on Chromosome 11. Two gamma-Globin chains combine with two zeta-Globin chains to form the embryonic Hemoglobin Portland. Fetal Hemoglobin F is formed from two gamma-Globin chains combined with two alpha-Globin chains.