Table 1.

Sequence-specific primers for C/A and G/C alleles and their PCR product sizes for positions −607 and −137

	Primer sequence	Product size (bp)
Sequence-specific primers for C/A allele at position −607
Common reverse primer	5′-TAACCTCATTCAGGACTTCC-3′
Sequence-specific forward primers 1	5′-GTTGCAGAAAGTGTAAAAATTATTAC-3′	196
Sequence-specific forward primers 2	5′-GTTGCAGAAAGTGTAAAAATTATTAA-3′	196
Control forward primer	5′-CTTTGCTATCATTCCAGGAA-3′	301
Sequence-specific primers for G/C allele at position −137
Common reverse primer	5′-AGGAGGGCAAAATG CACTGG-3′
Sequence-specific forward primers 1	5′-CCCCAACTTTTACGGAAGAAAAG-3′	261
Sequence-specific forward primers 2	5′-CCCCAACTTTTACGGAAGAAAAC-3′	261
Control forward primer	5′-CCAATAGGACTGATTAT TCCGCA-3′	446