rs4820323

This variant is located in the MAFF gene.

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GWAS Catalog Trait Associations (17)

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

high density lipoprotein cholesterol 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 0.02
p 6.0e-44
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 C
OR 0.02
p 5.0e-18
N 390,103
Large GWAS
multi-ancestry

saturated fatty acids to total fatty acids 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 0.02
p 7.0e-26
N 450,015
Large GWAS
multi-ancestry

polyunsaturated fatty acids to total fatty acids 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 0.02
p 1.0e-22
N 450,015
Large GWAS
multi-ancestry

cholesterol 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 0.02
p 2.0e-16
N 450,015
Large GWAS
multi-ancestry

free cholesterol to total lipids in IDL 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 0.02
p 2.0e-16
N 450,015
Large GWAS
multi-ancestry

fat pad 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 0.02
p 2.0e-15
N 337,196
Large GWAS
European

cholesteryl esters to total lipids in very large 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 0.02
p 4.0e-15
N 450,015
Large GWAS
multi-ancestry

triglyceride measurement, alcohol drinking

de Vries PS et al. “Multiancestry Genome-Wide Association Study of Lipid Levels Incorporating Gene-Alcohol Interactions.” American Journal of Epidemiology 188(6):1033-1054 (2019)
Allele G
OR —
p 8.0e-15
N 127,326
Large GWAS
multi-ancestry

cholesterol to total lipids in large 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 0.01
p 7.0e-14
N 450,015
Large GWAS
multi-ancestry

About MAFF

The protein encoded by this gene is a basic leucine zipper (bZIP) transcription factor that lacks a transactivation domain. It is known to bind the US-2 DNA element in the promoter of the oxytocin receptor (OTR) gene and most likely heterodimerizes with other leucine zipper-containing proteins to enhance expression of the OTR gene during term pregnancy. The encoded protein can also form homodimers, and since it lacks a transactivation domain, the homodimer may act as a repressor of transcription. This gene may also be involved in the cellular stress response. Multiple transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jun 2009]

View all MAFF variants →

Gene information from NCBI Gene. Variant classifications from ClinVar.

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