Esterase-D phenotypes were determined in a population sample of Tuscany, Italy. The observed frequencies of the three alleles are: EsD1 = 0.856, EsD2 = 0.143 and EsD3 = 0.001. Studies of the pedigree of the propositus's EsD 3--1 family and mother-child combinations confirm an autosomal co-dominant inheritance.

No abstract

The C3 and Bf polymorphisms were studied in 1,000 unrelated Italians. The gene frequencies were calculated and compared with other districts of Italy.

The distribution of the human red cell esterase D (EsD) "extended" polymorphism in a population sample from Tuscany (Italy) was studied using agarose gel isoelectric focusing. The estimated gene frequencies were: EsD*1 0.864, EsD*2 0.115, EsD*5 0.021. The EsD*5 allele frequency is very similar to those reported for other European populations. The "extension" of the EsD polymorphism may prove to be useful in paternity testing.

No abstract