Frequency of the ESD*5 allele in three ethnic groups in Minnesota.

Detection of the ESD5 gene products was simplified by the use of isoelectric focusing (IEF). Gene frequencies for ESD5 in whites, blacks and Amerindians from the State of Minnesota were 0.019, 0.002 and 0.000, respectively. The gene frequencies observed in the white data set were similar to those reported for European whites.