Esterase D: some population and formal genetical data.

562 healthy blood donors and 65 families with 149 offspring were types for esterase D (EsD). The observed allele frequencies are in good agreement with those determined in other Caucasian populations. The rare variant EsD3 was found in a blood donor who transmitted it to his daughter. The observed segregation ratios in our family material showed no deviation from expectation.