Phenotype and gene distribution of alpha-1-antitrypsin in a North Italian population.

A group of 202 unrelated Italians were screened for alpha1-antitrypsin using agarose-acrylamide electrophoresis and isoelectric focusing. The S and F gene frequencies were comparable to those found among Greeks and North European populations but they differed considerably from the frequencies found among Spaniards and Portuguese. The other gene frequencies appeared to be comparable to other populations, studied.