Human antithrombin III heterogeneity: a study by isoelectrofocusing and crossed immunoelectrofocusing. 1983

G Leone, and V M Valori, and R Cotumaccio, and G Massi

Isoelectrofocusing was carried out in the LKB Multiphor apparatus with pH 4-6.5 carrier ampholines using polyacrylamide gel slabs. Specimens of purified antithrombin III (AT-III), normal plasma and serum were isoelectrofocused. Microheterogeneity was shown by three preparations of purified AT; the protein was separated in at least six bands, three large bands were located in the pH range 4.9-5.2, one intermediate band at pH 4.85, other thinner bands were located in the pH range 4.55-4.80. The microheterogeneity of AT-III was confirmed in purified preparations as well as in plasma and in serum by crossed immunoelectrofocusing. The pattern of purified preparations, normal plasma and serum were very similar; only minor, quantitative differences were noticed. Plasma from a patient with congenital AT-III deficiency showed an abnormal pattern.

UI MeSH Term Description Entries
D007123 Immunoelectrophoresis, Two-Dimensional Immunoelectrophoresis in which a second electrophoretic transport is performed on the initially separated antigen fragments into an antibody-containing medium in a direction perpendicular to the first electrophoresis. Immunoelectrophoresis, Crossed,Immunoelectrophoresis, 2-D,Immunoelectrophoresis, 2D,2-D Immunoelectrophoresis,2D Immunoelectrophoresis,Crossed Immunoelectrophoresis,Immunoelectrophoresis, 2 D,Immunoelectrophoresis, Two Dimensional,Two-Dimensional Immunoelectrophoresis
D007525 Isoelectric Focusing Electrophoresis in which a pH gradient is established in a gel medium and proteins migrate until they reach the site (or focus) at which the pH is equal to their isoelectric point. Electrofocusing,Focusing, Isoelectric
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000990 Antithrombin III A plasma alpha 2 glycoprotein that accounts for the major antithrombin activity of normal plasma and also inhibits several other enzymes. It is a member of the serpin superfamily. Heparin Cofactor I,Antithrombin III-Alpha,Atenativ,Heparin Co-Factor I,Kybernin,Serpin C1,Thrombate III,Antithrombin III Alpha,Antithrombin IIIAlpha,Cofactor I, Heparin,Heparin Co Factor I

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