Gamma subunit may refer to: ATP synthase gamma subunit G gamma subunit; see GGL domain G beta gamma subunit; see Beta-gamma complex Gamma g subunit; see Heterotrimeric G protein Hemoglobin subunit gamma-1; see HBG1 Hemoglobin subunit gamma-2; see HBG2 See also Gamma secretase Laminin, gamma 1 Laminin, gamma 2