rs563995

This variant is located in the KCNN4 gene.

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GWAS Catalog Trait Associations (6)

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

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 A

OR 0.02

p 1.0e-25

N 545,203

Large GWAS

European

leukocyte quantity

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 1.0e-13

N 408,112

Large GWAS

European

erythrocyte count

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 0.03

p 3.0e-24

N 405,366

Major Consortium StudyLarge GWAS

European

erythrocyte volume

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-30

N 696,882

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 0.04

p 8.0e-30

N 583,965

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 6.0e-15

N 480,305

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 0.02

p 6.0e-15

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 G

OR 0.02

p 2.0e-12

N 394,642

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 2.0e-9

N 172,433

Large GWAS

European

hemoglobin measurement

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 1.0e-27

N 746,431

Large GWAS

multi-ancestry

Oskarsson GR et al. “Predicted loss and gain of function mutations in ACO1 are associated with erythropoiesis.” Communications Biology 3(1):189 (2020)

Allele G

OR —

β 0.021

p 2.0e-16

N 684,122

Large GWAS

European

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 2.0e-16

N 584,680

Major Consortium StudyLarge GWAS

multi-ancestry

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 4.0e-9

N 172,925

Large GWAS

European

mean corpuscular hemoglobin concentration

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 0.08

p 4.0e-125

N 583,935

Major Consortium StudyLarge GWAS

multi-ancestry

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 0.04

p 7.0e-62

N 491,553

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 G

OR 0.03

p 1.0e-35

N 485,950

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 0.04

p 6.0e-43

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 G

OR 0.03

p 4.0e-27

N 394,642

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 0.05

p 1.0e-27

N 172,851

Large GWAS

European

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ClinVar annotation

Benign★★★☆

4 submitters2 publications

not provided; not specified

View on ClinVar →

About KCNN4

The protein encoded by this gene is part of a potentially heterotetrameric voltage-independent potassium channel that is activated by intracellular calcium. Activation is followed by membrane hyperpolarization, which promotes calcium influx. The encoded protein may be part of the predominant calcium-activated potassium channel in T-lymphocytes. This gene is similar to other KCNN family potassium channel genes, but it differs enough to possibly be considered as part of a new subfamily. [provided by RefSeq, Jul 2008]

rs563995

GWAS Catalog Trait Associations (6)

red blood cell density

leukocyte quantity

erythrocyte count

erythrocyte volume

hemoglobin measurement

mean corpuscular hemoglobin concentration

ClinVar annotation

About KCNN4

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