title: The contribution of alpha1-antitrypsin to the total antitrypsin activity of human serum. A study of two phenotype PI OO individuals.
abstract: Comparison of the levels of alpha1-AT, alpha2-M, inter alpha-AT, C1 inactivator and antiplasmin and global antitrypsin activity in a group of normal phenotype PI MM individuals, a group of normal individuals with phenotypes with intermediate alpha1 AT activities and alpha2-AT-deficient persons show that alpha1-AT contributes more than 90 percent of the total antitrypsin activity of normal plasma. AT III and fast reacting antiplasmin are shown to contribute to the remaining activity. It can be assumed that due to test conditions the antitrypsin activity of alpha2-M is not assessed. C1 inactivator and inter alpha1-AT do not contribute to a perceptible extent to the overall antitrypsin activity estimated according to the method of Eriksson (Eriksson, S. (1965) Acta Med. Scand. 177, 1).
mesh_terms: D000328:Adult; D002648:Child; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D007122:Immunoelectrophoresis; D008297:Male; D010641:Phenotype; D014361:Trypsin Inhibitors / Q000097:blood*; D019896:alpha 1-Antitrypsin Deficiency
chemical_list: D014361:Trypsin Inhibitors