Table 2.

SNPs and their allele frequencies in NAT2, CYP1A1, and CYP1A2

	SNP rs #	Amino acid change	Major/minor allele	Major allele frequency in control group
NAT2
NAT2*5	rs1801280	Ile114Thr	T/C	0.986
NAT2*6	rs1799930	Arg197Gln	G/A	0.96
NAT2*7	rs1799931	Gly286Glu	G/A	0.641
NAT2*13	rs1208	Lys268Arg	A/G	0.826
CYP1A1	rs1048943	Ile462Val	A/G	0.661
CYP1A2	rs762551	5′-UTR	A/C	0.379

UTR untranslated region, SNP single nucleotide polymorphism