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Smoking initiation (ever regular vs never regular)

EPHA7 · rs6938042

Where this position leads

Condition: Smoking Behaviour and Nicotine Dependence

rs6938042 Condition: Smoking Behaviour and Nicotine Dependence Smoking Behaviour and Nicotine Dependence Condition rs6938042 rs6938042 EPHA7

What each result means

G/G Published research associates this genotype (two copies of the reported risk allele) with a higher likelihood of Smoking initiation (ever regular vs never regular) compared to the general population.
G/T Published research associates this genotype (one copy of the reported risk allele) with an intermediate association with Smoking initiation (ever regular vs never regular).
T/T Published research associates this genotype with typical/baseline likelihood of Smoking initiation (ever regular vs never regular) — no copies of the reported risk allele.
Source
Exome Chip Meta-analysis Fine Maps Causal Variants and Elucidates the Genetic Architecture of Rare Coding Variants in Smoking and Alcohol Use
Brazel DM, Jiang Y, Hughey JM, Turcot V, Zhan X, Gong J, Batini C, Weissenkampen JD, Liu M, Barnes DR, Bertelsen S, Chou YL
and 59 more — show all
Erzurumluoglu AM, Faul JD, Haessler J, Hammerschlag AR, Hsu C, Kapoor M, Lai D, Le N, de Leeuw CA, Loukola A, Mangino M, Melbourne CA, Pistis G, Qaiser B, Rohde R, Shao Y, Stringham H, Wetherill L, Zhao W, Agrawal A, Bierut L, Chen C, Eaton CB, Goate A, Haiman C, Heath A, Iacono WG, Martin NG, Polderman TJ, Reiner A, Rice J, Schlessinger D, Scholte HS, Smith JA, Tardif JC, Tindle HA, van der Leij AR, Boehnke M, Chang-Claude J, Cucca F, David SP, Foroud T, Howson JMM, Kardia SLR, Kooperberg C, Laakso M, Lettre G, Madden P, McGue M, North K, Posthuma D, Spector T, Stram D, Tobin MD, Weir DR, Kaprio J, Abecasis GR, Liu DJ, Vrieze S
CHD Exome+ Consortium · Consortium for Genetics of Smoking Behaviour
Biological psychiatry · 2019 · PMID 30679032

Questions about rs6938042

What is rs6938042?

rs6938042 is a single position in the genome, in or near the EPHA7 gene. Published research associates it with smoking initiation (ever regular vs never regular). A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

What conditions is rs6938042 linked to?

On MyGeneLog this position is linked to Smoking Behaviour and Nicotine Dependence. The research behind each link, and its sources, are set out on that condition page.

Does having rs6938042 mean I will get this?

No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.

Where does the information about rs6938042 come from?

GWAS Catalog, Biol Psychiatry 2018, PMID:30679032. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

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