Table 2.

Sequence analysis of the four alleles identified in the PARK7 SVA

	Number of repeats
Alleles of PARK7 SVA	Hexamer VNTR	TR	VNTR
1	7	12	10
2	10	12	11
3	10	12	12
4	13	12	12

Genomic DNA from individuals in the CEU (Utah residents with Northern and Western European ancestry from the CEPH collection) HapMap cohort was analysed. The length variation detected occurred in the CCCTCT hexamer repeat (termed hexamer VNTR) and within a second repetitive VNTR region further downstream. In this cohort a repetitive domain here termed a TR was not found to vary between the individuals within this population; this TR was located upstream of the second VNTR. The alleles were numbered 1–4 from shortest to longest. One example of each type of allele was sequenced.