Table 1.

The primer sequences of genetic polymorphisms

SNP	Gene sequence	Primer sequence
COMT rs165599 A>G	GACGACTGCC[A/G]GCCTGGGAAA	F: 5′-TCGTGGACGCCGTGATTCAGG-3′ R: 5′-AGGTCTGACAACGGGTCAGGC-3′
COMT rs4680 G>A	TTTCGCTGGC[A/G]TGAAGGACAA	F: 5′-GGATGATGGA2TTTCGCTCGC-3′ R: 5′-CTGGTGGGTAGGACAAAGTGC-3′
COMT rs165774 A>G	GTTAGCAGCC[A/G]GACTAGGAGC	F: 5′-GCTTAAGGAGCCTCACATCAGT-3′ R: 5′-CTAGTGCTGGTTCCTTCCAATC-3′
DRD1 rs11746641 T>G	GAAGGTGTAT[G/T]GAATTTTATA	F: 5′-CTGATATGGTGCATGGCTGTT-3′ R: 5′-ACCTGCGTTGTCTCCAAGTGT-3′
DRD1 rs11749676 G>A	AGAAAGAAAA[A/G]GCATCATGCT	F: 5′-GGACACTTGGAGACAACGCAG-3′ R: 5′-ATGAGCAGCGACAGGAAACAG-3′
DRD2 rs6275 C>T	CGTCCCACCA[C/T]GGTCTCCACA	F: 5′-ATGGGTGGCTGATGCCTGGG-3′ R: 5′-GGTCTTTGGCATGCCCATTCT-3′
DRD2 rs1801028 C>G	CCCGACCCGT[C/G]CCACCACGGT	F: 5′-CCAGCTGACTCTCCCCGACCGGT-3′ R: 5′-TTGGGCATGGTCTGGATCTCAAA-3′
DRD2 rs6277 C>T	ACAGCACTCC[C/T]GACAGCCCCG	F: 5′-GCCACCACGGCTGGCCAAGTTGTCTA-3′ R: 5′-GAGGAGCACCTTCCTGAGTGTCATCA-3′
DRD3 rs6280 T>C	TTCAGGTGGC[C/T]ACTCAGCTGG	F: 5′-GCTCTATCTCCAACTCTCACA-3′ R: 5′-AAGTCTACTCACCTCCAGGTA-3′
DRD5 rs6283 T>C	GTGGACACCC[C/T]GAAGGCCCTC	F: 5′-GAGGGTCCCTTGGCTGAG-3′ R: 5′-CCCTCTCCAGGGAGGAAATC-3′

Abbreviations: COMT, catechol-O-methyltransferase; DRD1, dopamine receptor D1; DRD2, dopamine receptor D2; DRD3, dopamine receptor D3; DRD5, dopamine receptor D5; F, forward; R, reverse; SNP, single nucleotide polymorphism.