Table 1

List of genes included in the study, with sequence screened and SNP frequency


Gene
Gene symbol
Gene product category/function*
Bp screened
SNP/bp

Dopamine related genes
Tyrosine hydroxylase
TH
Presynaptic form. of DOPA
1488
1/1488
Dopamine transporter
SLC6A3
Synaptic clearance of Dopamine
1881
1/470
Dopamine receptor D1
DRD1
G protein-coupled receptor
1341
1/335
Dopamine receptor D2
DRD2
G protein-coupled receptor
1332
1/666
Dopamine receptor D3
DRD3
G protein-coupled receptor
1344
1/336





Norepinephrine related gene
Dopamine beta hydroxylase
DBH
Presynaptic form. of norepinephrine
1839
1/306





Serotonin related genes
5-hydroxytryptamine receptor 1A
HTR1A
G protein-coupled receptor
1272
1/1272
5-hydroxytryptamine receptor 1B
HTR1B
G protein-coupled receptor
1170
1/585
5-hydroxytryptamine receptor 1D
HTR1D
G protein-coupled receptor
1134
1/283
5-hydroxytryptamine receptor 1E
HTR1E
G protein-coupled receptor
1098
1/1098
5-hydroxytryptamine receptor 1F
HTR1F
G protein-coupled receptor
1101
1/1101
5-hydroxytryptamine receptor 2A
HTR2A
G protein-coupled receptor
1414
0
5-hydroxytryptamine receptor 2B
HTR2B
G protein-coupled receptor
1305
1/652
5-hydroxytryptamine receptor 2C
HTR2C
G protein-coupled receptor
1377
1/1377
5-hydroxytryptamine receptor 3A
HTR3A
Ligand-gated ion channel
1452
1/1452
5-hydroxytryptamine receptor 4
HTR4
G protein-coupled receptor
1167
0
Serotonin transporter
SLC6A4
Synaptic clearance of Serotonin
1845
0
Tryptophan hydroxylase 1
TPH1
Presynaptic form. of hydroxytryptophan (5HT)
1335
0

Sum of bp screened


24895


No. of SNPs detected


34

Frequency of SNPs (snp/bp)


1/732

     Synonym (n = 23)


1/1082

     Non-synonym (n = 11)


1/2263



* As defined at [35]

Våge and Lingaas BMC Genetics 2008 9:10   doi:10.1186/1471-2156-9-10