rs7141420

This variant is located in the NRXN3 gene.

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GWAS Catalog Trait Associations (8)

Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.

body mass index

Koskeridis F et al. “Pleiotropic genetic architecture and novel loci for C-reactive protein levels.” Nature Communications 13(1):6939 (2022)
Allele T
OR 0.02
p 5.0e-38
N 694,649
Large GWAS
European
Sakaue S et al. “A cross-population atlas of genetic associations for 220 human phenotypes.” Nature Genetics 53(10):1415-1424 (2021)
Allele T
OR 0.02
p 4.0e-19
N 523,818
Large GWAS
multi-ancestry
Pulit SL et al. “Meta-analysis of genome-wide association studies for body fat distribution in 694 649 individuals of European ancestry.” Human Molecular Genetics 28(1):166-174 (2019)
Allele T
OR 0.02
p 2.0e-37
N 434,794
Meta-analysisLarge GWAS
European
Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele T
OR 0.02
p 1.0e-25
N 394,642
Large GWAS
European
Winkler TW et al. “The Influence of Age and Sex on Genetic Associations with Adult Body Size and Shape: A Large-Scale Genome-Wide Interaction Study.” Plos Genetics 11(10):e1005378 (2015)
Allele T
OR —
β 0.027
p 1.0e-24
N 309,889
Large GWAS
European
Locke AE et al. “Genetic studies of body mass index yield new insights for obesity biology.” Nature 518(7538):197-206 (2015)
Allele T
OR 0.03
p 1.0e-11
N 238,944
Large GWAS
multi-ancestry
Akiyama M et al. “Genome-wide association study identifies 112 new loci for body mass index in the Japanese population.” Nature Genetics 49(10):1458-1467 (2017)
Allele T
OR 0.02
p 7.0e-15
N 158,284
Large GWAS
multi-ancestry
Justice AE et al. “Genome-wide meta-analysis of 241,258 adults accounting for smoking behaviour identifies novel loci for obesity traits.” Nature Communications 8:14977 (2017)
Allele T
OR 0.02
p 4.0e-11
N 153,041
Meta-analysisLarge GWAS
multi-ancestry
Graff M et al. “Genome-wide physical activity interactions in adiposity - A meta-analysis of 200,452 adults.” Plos Genetics 13(4):e1006528 (2017)
Allele T
OR 0.03
p 4.0e-10
N 123,097
Meta-analysisLarge GWAS
multi-ancestry

body weight

Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele T
OR 0.02
p 4.0e-33
N 394,642
Large GWAS
European

base metabolic rate measurement

Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele T
OR 0.01
p 1.0e-26
N 394,642
Large GWAS
European

whole body water mass

Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele T
OR 0.01
p 2.0e-22
N 394,642
Large GWAS
European

obesity

Berndt SI et al. “Genome-wide meta-analysis identifies 11 new loci for anthropometric traits and provides insights into genetic architecture.” Nature Genetics 45(5):501-12 (2013)
Allele T
OR 1.08
p 1.0e-17
N 204,498
Meta-analysisLarge GWAS
European

lean body mass

Harris BHL et al. “New role of fat-free mass in cancer risk linked with genetic predisposition.” Scientific Reports 14(1):7270 (2024)
Allele T
OR 0.01
p 4.0e-15
N 337,739
Large GWAS
European

physical activity measurement, body mass index

Graff M et al. “Genome-wide physical activity interactions in adiposity - A meta-analysis of 200,452 adults.” Plos Genetics 13(4):e1006528 (2017)
Allele T
OR 0.02
p 2.0e-12
N 161,368
Meta-analysisLarge GWAS
multi-ancestry

smoking behavior, body mass index

Justice AE et al. “Genome-wide meta-analysis of 241,258 adults accounting for smoking behaviour identifies novel loci for obesity traits.” Nature Communications 8:14977 (2017)
Allele T
OR 0.02
p 5.0e-12
N 196,760
Meta-analysisLarge GWAS
multi-ancestry

About NRXN3

This gene encodes a member of a family of proteins that function in the nervous system as receptors and cell adhesion molecules. Extensive alternative splicing and the use of alternative promoters results in multiple transcript variants and protein isoforms for this gene, but the full-length nature of many of these variants has not been determined. Transcripts that initiate from an upstream promoter encode alpha isoforms, which contain epidermal growth factor-like (EGF-like) sequences and laminin G domains. Transcripts initiating from the downstream promoter encode beta isoforms, which lack EGF-like sequences. Genetic variation at this locus has been associated with a range of behavioral phenotypes, including alcohol dependence and autism spectrum disorder. [provided by RefSeq, Dec 2012]

View all NRXN3 variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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