{{Rsnum
|rsid=2060762
|Gene=DDC
|Chromosome=7
|position=50461686
|Orientation=plus
|GMAF=0.2222
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Gene_s=DDC
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 3.5 | 21.2 | 75.2
| HCB | 15.3 | 50.4 | 34.3
| JPT | 16.8 | 51.3 | 31.9
| YRI | 4.8 | 26.5 | 68.7
| ASW | 5.3 | 33.3 | 61.4
| CHB | 15.3 | 50.4 | 34.3
| CHD | 17.4 | 53.2 | 29.4
| GIH | 5.9 | 29.7 | 64.4
| LWK | 2.7 | 30.9 | 66.4
| MEX | 0.0 | 8.6 | 91.4
| MKK | 3.2 | 32.1 | 64.7
| TSI | 3.9 | 27.5 | 68.6
| HapMapRevision=28
}}
per OMIM, Ma et al. (2005) {{PMID|15879433}} found two different DDC haplotypes associated with nicotine dependence in African Americans and European Americans (with measures of smoking quantity [SQ], heaviness of [[smoking]] index [HSI], and the Fagerstrom test for ND [FTND])
*in African Americans, [[rs921451]](T), [[rs3735273]](G), [[rs1451371]](T), [[rs2060762]](G), all three measures sig. associated after correction for multiple testing
*in European Americans, [[rs921451]](T), [[rs3735273]](G), [[rs1451371]](T), [[rs3757472]](G), which showed a sig. assoc. w/ the SQ and FTND score

{{omim
|desc=TOBACCO [[Addiction]], SUSCEPTIBILITY TO
|id=188890
|rsnum=2060762
}}

{{omim
|desc=DOPA DECARBOXYLASE; DDC
|id=107930
|rsnum=2060762
}}

{{PMID Auto
|PMID=17184203
|Title=DOPA decarboxylase gene is associated with nicotine dependence.
}}

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | Affy GenomeWide 6}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}