rs12889267

This variant is located in the ARHGEF40 gene.

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GWAS Catalog Trait Associations (18)

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

hematocrit

Chen MH et al. “Trans-ethnic and Ancestry-Specific Blood-Cell Genetics in 746,667 Individuals from 5 Global Populations.” Cell 182(5):1198-1213.e14 (2020)
Allele G
OR 0.03
p 2.0e-25
N 562,259
Large GWAS
European
Jee YH et al. “Genome-wide association studies in a large Korean cohort identify quantitative trait loci for 36 traits and illuminate their genetic architectures.” Nature Communications 16(1):4935 (2025)
Allele G
OR 0.02
p 1.0e-21
N 928,679
Large GWAS
multi-ancestry
Verma A et al. “Diversity and scale: Genetic architecture of 2068 traits in the VA Million Veteran Program.” Science (new York, N.y.) 385(6706):eadj1182 (2024)
Allele G
OR 0.02
p 5.0e-12
N 584,647
Major Consortium StudyLarge GWAS
multi-ancestry
Sakaue S et al. “A cross-population atlas of genetic associations for 220 human phenotypes.” Nature Genetics 53(10):1415-1424 (2021)
Allele G
OR 0.02
p 2.0e-12
N 503,490
Large GWAS
multi-ancestry
Vuckovic D et al. “The Polygenic and Monogenic Basis of Blood Traits and Diseases.” Cell 182(5):1214-1231.e11 (2020)
Allele G
OR 0.03
p 3.0e-18
N 408,112
Large GWAS
European
Astle WJ et al. “The Allelic Landscape of Human Blood Cell Trait Variation and Links to Common Complex Disease.” Cell 167(5):1415-1429.e19 (2016)
Allele G
OR 0.03
p 3.0e-9
N 173,039
Large GWAS
European

glycine measurement

Zoodsma M et al. “A genetic map of human metabolism across the allele frequency spectrum.” Nature Genetics 57(10):2445-2455 (2025)
Allele G
OR 0.02
p 1.0e-20
N 450,015
Large GWAS
multi-ancestry

erythrocyte count

Jee YH et al. “Genome-wide association studies in a large Korean cohort identify quantitative trait loci for 36 traits and illuminate their genetic architectures.” Nature Communications 16(1):4935 (2025)
Allele A
OR 0.02
p 1.0e-17
N 928,679
Large GWAS
multi-ancestry
Sakaue S et al. “A cross-population atlas of genetic associations for 220 human phenotypes.” Nature Genetics 53(10):1415-1424 (2021)
Allele A
OR 0.02
p 5.0e-10
N 503,987
Large GWAS
multi-ancestry
Vuckovic D et al. “The Polygenic and Monogenic Basis of Blood Traits and Diseases.” Cell 182(5):1214-1231.e11 (2020)
Allele A
OR 0.02
p 9.0e-11
N 408,112
Large 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 A
OR 0.02
p 2.0e-14
N 394,642
Large GWAS
European

red blood cell density

Chen MH et al. “Trans-ethnic and Ancestry-Specific Blood-Cell Genetics in 746,667 Individuals from 5 Global Populations.” Cell 182(5):1198-1213.e14 (2020)
Allele G
OR —
p 2.0e-16
N 727,624
Large GWAS
multi-ancestry

high density lipoprotein cholesterol measurement

Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele G
OR 0.02
p 8.0e-16
N 394,642
Large GWAS
European

brain attribute

van der Meer D et al. “The genetic architecture of human cortical folding.” Science Advances 7(51):eabj9446 (2021)
Allele G
OR 7.91
p 3.0e-15
N 33,748
Large GWAS
European

platelet crit

Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele G
OR 0.02
p 6.0e-13
N 394,642
Large GWAS
European
Vuckovic D et al. “The Polygenic and Monogenic Basis of Blood Traits and Diseases.” Cell 182(5):1214-1231.e11 (2020)
Allele G
OR 0.02
p 2.0e-12
N 408,112
Large 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 G
OR 0.01
p 2.0e-12
N 337,739
Large GWAS
European

descending aorta diameter

Pirruccello JP et al. “Deep learning enables genetic analysis of the human thoracic aorta.” Nature Genetics 54(1):40-51 (2022)
Allele A
OR —
β 0.048
p 3.0e-11
N 39,688
Large GWAS
European
Pirruccello JP et al. “The Genetic Determinants of Aortic Distention.” Journal of the American College of Cardiology 81(14):1320-1335 (2023)
Allele A
OR 0.05
p 2.0e-10
N 39,893
Large GWAS
European, NR

atrial fibrillation

Yuan S et al. “Cross-population GWAS and proteomics improve risk prediction and reveal mechanisms in atrial fibrillation.” Nature Communications 16(1):6426 (2025)
Allele A
OR 0.03
p 1.0e-9
N 1,840,341
Large GWAS
European
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ClinVar annotation

Benign★★★☆
2 submitters1 publication
View on ClinVar →

About ARHGEF40

This gene encodes a protein similar to guanosine nucleotide exchange factors for Rho GTPases. The encoded protein contains in its C-terminus a GEF domain involved in exchange activity and a pleckstrin homology domain. Alternatively spliced transcripts that encode different proteins have been described. [provided by RefSeq, Mar 2014]

View all ARHGEF40 variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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