Figure 1.

Genotype data for 17 polymorphic sites in ATM, obtained for 91 representatives from seven major human populations. An asterisk (*) indicates that the polymorphism was not included in the haplotype analysis, because of recombination or recurrent mutation. White circles represent the homozygous ancestral allele, black circles the homozygous derived allele, and gray circles the heterozygotes. The nucleotide positions of the 17 polymorphic sites, in relation to the cDNA sequence (GenBank accession number U82828), are given at the top.