Red cell enzyme polymorphisms in the greek populations.

The frequency of variant forms of 6 red cell enzymes, adenylate kinase, adenosine deaminase, phosphoglucomutase, acid phosphatase, 6-phosphogluconate dehydrogenase and glutathione reductase, were determined in 9 Greek populations. The frequencies of the variants in these populations were similar to those previously reported in most other European populations. However, several differences, particularly in the 6-phosphogluconate dehydrogenase, phosphoglucomutase and acid phosphatase alleles, were found in a comparison of Greeks and Bulgarians, in accordance with their separate ethnic origins. The Macedonians resembled the other Greeks and differed from the Bulgarians.