Red cell and serum proteins and enzymes of the Irish.

The gene frequencies in a number of red cell and serum protein and enzyme polymorphisms were examined in blood specimens from some 1800 subjects in different parts of Ireland. In general, the gene frequencies are similar to other western European values, though AK2 and PGDC frequencies are slightly low and ADA2 slightly high. The populations of the different provinces of Ireland are generally similar in these polymorphic frequencies, though Ag, Lp and Gc suggest differences mainly involving the ancient province of Ulster.