title: Analysis of antithrombin III microheterogeneity by isoelectric focusing in polyacrylamide gels and immunoblotting.
abstract: Microheterogeneity of antithrombin III (ATIII) was examined in pooled normal human plasma and serum by IEF/PA and immunoblotting techniques. A pattern consisting of 8 bands varying in isoelectric point from 4.7 to 5.2 was observed in citrated plasma following IEF in a pH range of 4-6. A similar pattern was observed in all 149 healthy adults examined. The reactivity of ATIII with heparin or, thrombin was investigated using this technique. Characteristic shifts of the banding pattern to the anode or, cathode respectively were observed.
mesh_terms: D000990:Antithrombin III / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D004591:Electrophoresis, Polyacrylamide Gel; D006493:Heparin; D006801:Humans; D007525:Isoelectric Focusing; D013917:Thrombin
chemical_list: D000990:Antithrombin III; D006493:Heparin; D013917:Thrombin