rs1800978

This variant is located in the ABCA1 gene.

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GWAS Catalog Trait Associations (25)

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

triglyceride measurement

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 C
OR 0.03
p 3.0e-46
N 928,679
Large GWAS
multi-ancestry
Graham SE et al. “The power of genetic diversity in genome-wide association studies of lipids.” Nature 600(7890):675-679 (2021)
Allele C
OR 0.03
p 8.0e-22
N 1,320,016
Large GWAS
European
Richardson TG et al. “Evaluating the relationship between circulating lipoprotein lipids and apolipoproteins with risk of coronary heart disease: A multivariable Mendelian randomisation analysis.” Plos Medicine 17(3):e1003062 (2020)
Allele C
OR 0.03
p 1.0e-18
N 441,016
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 C
OR 0.03
p 1.0e-20
N 394,642
Large GWAS
European

triglycerides in small VLDL 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 0.03
p 1.0e-25
N 450,015
Large GWAS
multi-ancestry

triglycerides to total lipids in small LDL percentage

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 0.03
p 7.0e-24
N 450,015
Large GWAS
multi-ancestry

cholesteryl esters to total lipids in small HDL percentage

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 0.03
p 2.0e-23
N 450,015
Large GWAS
multi-ancestry

BMI-adjusted waist-hip ratio

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 C
OR 0.03
p 3.0e-23
N 379,501
Meta-analysisLarge GWAS
European
Christakoudi S et al. “GWAS of allometric body-shape indices in UK Biobank identifies loci suggesting associations with morphogenesis, organogenesis, adrenal cell renewal and cancer.” Scientific Reports 11(1):10688 (2021)
Allele C
OR 0.04
p 4.0e-18
N 219,872
Major Consortium StudyLarge GWAS
European

triglycerides in very small VLDL 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 0.03
p 3.0e-20
N 450,015
Large GWAS
multi-ancestry

free cholesterol to total lipids in small LDL percentage

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 0.03
p 3.0e-19
N 450,015
Large GWAS
multi-ancestry

triglycerides in IDL 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 0.03
p 1.0e-18
N 450,015
Large GWAS
multi-ancestry

triglycerides to total lipids in medium LDL percentage

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 0.03
p 1.0e-17
N 450,015
Large GWAS
multi-ancestry
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ClinVar annotation

Benign★★★☆
4 submitters2 publications

Tangier disease; not specified; Hypoalphalipoproteinemia, primary, 1; not provided

View on ClinVar →

About ABCA1

The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intracellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the ABC1 subfamily. Members of the ABC1 subfamily comprise the only major ABC subfamily found exclusively in multicellular eukaryotes. With cholesterol as its substrate, this protein functions as a cholesteral efflux pump in the cellular lipid removal pathway. Mutations in both alleles of this gene cause Tangier disease and familial high-density lipoprotein (HDL) deficiency. [provided by RefSeq, Sep 2019]

View all ABCA1 variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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