title: Method for the typing of the C3 polymorphism in stored sera by means of isoelectric focusing.
abstract: A method is described by which the three common phenotypes of C3 can be typed by desialylation and isoelectric focusing in serum samples stored at -20 degrees C for several years.
mesh_terms: D001793:Blood Preservation; D003176:Complement C3 / Q000032:analysis / Q000235:genetics*; D006801:Humans; D007525:Isoelectric Focusing; D009439:Neuraminidase; D011110:Polymorphism, Genetic
chemical_list: D003176:Complement C3; D009439:Neuraminidase