Table 2.

 Haplotypes of the 5′ flanking region of IL12RB2

Haplotype	−1035	−1023	−650	−464	Frequency (%)
1	A	A	G	A	41.2
2	G	G	del	G	32.4
3	A	A	del	A	11.8
4	G	G	G	A	8.3
5	A	A	del	G	5.9

Haplotypes were determined by sequencing 34 subcloned polymerase chain reaction amplified DNA fragments from 17 donors with heterozygous alleles in at least in one of the positions −1035, −1023, −650, and −464, but not from donors carrying homozygous alleles at all positions.