Group-specific component (Gc) and transferrin (Tf) subtypes ascertained by isoelectric focusing. A simple...

Simultaneous subtyping of Gc and TfC by isoelectric focusing allows us to compute the following gene frequencies for the Belgian population: Gc1S = 0.543 Gc1F = 0.167 Gc2 = 0.290 TfC1 = 0.784 TfC2 = 0.206 TfB = 0.007 TfD = 0.003. The Gc bands were precipitated by sulfosalicylic acid instead of by immunofixation.